<?xml version="1.0" encoding="us-ascii"?>
<!--Generated by EDGARfilings PROfile 8.0.0.0 Broadridge-->
<link:linkbase xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xbrli="http://www.xbrl.org/2003/instance">
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/netLabel" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/net-2009-12-16.xsd#netLabel" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedTotalLabel" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedNetLabel" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedNetLabel" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedTerseLabel" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedPeriodEndLabel" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedPeriodEndLabel" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedPeriodStartLabel" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedPeriodStartLabel" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedLabel" />
  <link:roleRef roleURI="http://castormaritime.com/role/SubsequentEventsDetails" xlink:type="simple" xlink:href="ctrm-20211231.xsd#SubsequentEventsDetails" />
  <link:roleRef roleURI="http://castormaritime.com/role/SegmentInformationReconciliationOfTotalSegmentAssetsToTotalAssetsDetails" xlink:type="simple" xlink:href="ctrm-20211231.xsd#SegmentInformationReconciliationOfTotalSegmentAssetsToTotalAssetsDetails" />
  <link:roleRef roleURI="http://castormaritime.com/role/SegmentInformationInformationAboutCompanySReportableSegmentsDetails" xlink:type="simple" xlink:href="ctrm-20211231.xsd#SegmentInformationInformationAboutCompanySReportableSegmentsDetails" />
  <link:roleRef roleURI="http://castormaritime.com/role/IncomeTaxesDetails" xlink:type="simple" xlink:href="ctrm-20211231.xsd#IncomeTaxesDetails" />
  <link:roleRef roleURI="http://castormaritime.com/role/InterestAndFinanceCostsDetails" xlink:type="simple" xlink:href="ctrm-20211231.xsd#InterestAndFinanceCostsDetails" />
  <link:roleRef roleURI="http://castormaritime.com/role/GeneralAndAdministrativeExpensesDetails" xlink:type="simple" xlink:href="ctrm-20211231.xsd#GeneralAndAdministrativeExpensesDetails" />
  <link:roleRef roleURI="http://castormaritime.com/role/VesselOperatingAndVoyageExpensesDetails" xlink:type="simple" xlink:href="ctrm-20211231.xsd#VesselOperatingAndVoyageExpensesDetails" />
  <link:roleRef roleURI="http://castormaritime.com/role/VesselRevenuesDetails" xlink:type="simple" xlink:href="ctrm-20211231.xsd#VesselRevenuesDetails" />
  <link:roleRef roleURI="http://castormaritime.com/role/EarningsLossPerShareDetails" xlink:type="simple" xlink:href="ctrm-20211231.xsd#EarningsLossPerShareDetails" />
  <link:roleRef roleURI="http://castormaritime.com/role/CommitmentsAndContingenciesDetails" xlink:type="simple" xlink:href="ctrm-20211231.xsd#CommitmentsAndContingenciesDetails" />
  <link:roleRef roleURI="http://castormaritime.com/role/EquityCapitalStructureDescriptionOfSeriesBPreferredSharesDetails" xlink:type="simple" xlink:href="ctrm-20211231.xsd#EquityCapitalStructureDescriptionOfSeriesBPreferredSharesDetails" />
  <link:roleRef roleURI="http://castormaritime.com/role/EquityCapitalStructureSeriesPreferredSharesAmendmentAndAccumulatedDividendsSettlementDetails" xlink:type="simple" xlink:href="ctrm-20211231.xsd#EquityCapitalStructureSeriesPreferredSharesAmendmentAndAccumulatedDividendsSettlementDetails" />
  <link:roleRef roleURI="http://castormaritime.com/role/EquityCapitalStructurePreferredSharesDetails" xlink:type="simple" xlink:href="ctrm-20211231.xsd#EquityCapitalStructurePreferredSharesDetails" />
  <link:roleRef roleURI="http://castormaritime.com/role/EquityCapitalStructureReverseStockSplitDetails" xlink:type="simple" xlink:href="ctrm-20211231.xsd#EquityCapitalStructureReverseStockSplitDetails" />
  <link:roleRef roleURI="http://castormaritime.com/role/EquityCapitalStructureSecondAtmProgramDetails" xlink:type="simple" xlink:href="ctrm-20211231.xsd#EquityCapitalStructureSecondAtmProgramDetails" />
  <link:roleRef roleURI="http://castormaritime.com/role/EquityCapitalStructure2021ThirdRegisteredDirectEquityOfferingDetails" xlink:type="simple" xlink:href="ctrm-20211231.xsd#EquityCapitalStructure2021ThirdRegisteredDirectEquityOfferingDetails" />
  <link:roleRef roleURI="http://castormaritime.com/role/EquityCapitalStructure2021SecondRegisteredDirectEquityOfferingDetails" xlink:type="simple" xlink:href="ctrm-20211231.xsd#EquityCapitalStructure2021SecondRegisteredDirectEquityOfferingDetails" />
  <link:roleRef roleURI="http://castormaritime.com/role/EquityCapitalStructure2021FirstRegisteredDirectEquityOfferingDetails" xlink:type="simple" xlink:href="ctrm-20211231.xsd#EquityCapitalStructure2021FirstRegisteredDirectEquityOfferingDetails" />
  <link:roleRef roleURI="http://castormaritime.com/role/EquityCapitalStructure2020JulyEquityOfferingDetails" xlink:type="simple" xlink:href="ctrm-20211231.xsd#EquityCapitalStructure2020JulyEquityOfferingDetails" />
  <link:roleRef roleURI="http://castormaritime.com/role/EquityCapitalStructure2020JuneEquityOfferingDetails" xlink:type="simple" xlink:href="ctrm-20211231.xsd#EquityCapitalStructure2020JuneEquityOfferingDetails" />
  <link:roleRef roleURI="http://castormaritime.com/role/EquityCapitalStructureCommonSharesAndFirstAtmProgramDetails" xlink:type="simple" xlink:href="ctrm-20211231.xsd#EquityCapitalStructureCommonSharesAndFirstAtmProgramDetails" />
  <link:roleRef roleURI="http://castormaritime.com/role/EquityCapitalStructureCapitalStockDetails" xlink:type="simple" xlink:href="ctrm-20211231.xsd#EquityCapitalStructureCapitalStockDetails" />
  <link:roleRef roleURI="http://castormaritime.com/role/LongtermDebtAnnualPrincipalPaymentsDetails" xlink:type="simple" xlink:href="ctrm-20211231.xsd#LongtermDebtAnnualPrincipalPaymentsDetails" />
  <link:roleRef roleURI="http://castormaritime.com/role/LongtermDebt50MillionConvertibleDebenturesDetails" xlink:type="simple" xlink:href="ctrm-20211231.xsd#LongtermDebt50MillionConvertibleDebenturesDetails" />
  <link:roleRef roleURI="http://castormaritime.com/role/LongtermDebt2315MillionTermLoanFacilityDetails" xlink:type="simple" xlink:href="ctrm-20211231.xsd#LongtermDebt2315MillionTermLoanFacilityDetails" />
  <link:roleRef roleURI="http://castormaritime.com/role/LongtermDebt4075MillionTermLoanFacilityDetails" xlink:type="simple" xlink:href="ctrm-20211231.xsd#LongtermDebt4075MillionTermLoanFacilityDetails" />
  <link:roleRef roleURI="http://castormaritime.com/role/LongtermDebt180MillionTermLoanFacilityDetails" xlink:type="simple" xlink:href="ctrm-20211231.xsd#LongtermDebt180MillionTermLoanFacilityDetails" />
  <link:roleRef roleURI="http://castormaritime.com/role/LongtermDebt1529MillionTermLoanFacilityDetails" xlink:type="simple" xlink:href="ctrm-20211231.xsd#LongtermDebt1529MillionTermLoanFacilityDetails" />
  <link:roleRef roleURI="http://castormaritime.com/role/LongtermDebt45MillionTermLoanFacilityDetails" xlink:type="simple" xlink:href="ctrm-20211231.xsd#LongtermDebt45MillionTermLoanFacilityDetails" />
  <link:roleRef roleURI="http://castormaritime.com/role/LongtermDebt110MillionTermLoanFacilityDetails" xlink:type="simple" xlink:href="ctrm-20211231.xsd#LongtermDebt110MillionTermLoanFacilityDetails" />
  <link:roleRef roleURI="http://castormaritime.com/role/LongtermDebtLongtermDebtIncludingRelatedPartyDebtDetails" xlink:type="simple" xlink:href="ctrm-20211231.xsd#LongtermDebtLongtermDebtIncludingRelatedPartyDebtDetails" />
  <link:roleRef roleURI="http://castormaritime.com/role/VesselsNetAdvancesForVesselAcquisitionAdvancesForVesselAcquisitionDetails" xlink:type="simple" xlink:href="ctrm-20211231.xsd#VesselsNetAdvancesForVesselAcquisitionAdvancesForVesselAcquisitionDetails" />
  <link:roleRef roleURI="http://castormaritime.com/role/VesselsNetAdvancesForVesselAcquisitionVesselAcquisitionsAndOtherCapitalExpendituresDetails" xlink:type="simple" xlink:href="ctrm-20211231.xsd#VesselsNetAdvancesForVesselAcquisitionVesselAcquisitionsAndOtherCapitalExpendituresDetails" />
  <link:roleRef roleURI="http://castormaritime.com/role/VesselsNetAdvancesForVesselAcquisitionNetBookValueDetails" xlink:type="simple" xlink:href="ctrm-20211231.xsd#VesselsNetAdvancesForVesselAcquisitionNetBookValueDetails" />
  <link:roleRef roleURI="http://castormaritime.com/role/FairValueOfAcquiredTimeCharterDetails" xlink:type="simple" xlink:href="ctrm-20211231.xsd#FairValueOfAcquiredTimeCharterDetails" />
  <link:roleRef roleURI="http://castormaritime.com/role/DeferredChargesNetDetails" xlink:type="simple" xlink:href="ctrm-20211231.xsd#DeferredChargesNetDetails" />
  <link:roleRef roleURI="http://castormaritime.com/role/TransactionsWithRelatedPartiesVesselAcquisitionsDetails" xlink:type="simple" xlink:href="ctrm-20211231.xsd#TransactionsWithRelatedPartiesVesselAcquisitionsDetails" />
  <link:roleRef roleURI="http://castormaritime.com/role/TransactionsWithRelatedPartiesAlexandriaEnterprisesSDetails" xlink:type="simple" xlink:href="ctrm-20211231.xsd#TransactionsWithRelatedPartiesAlexandriaEnterprisesSDetails" />
  <link:roleRef roleURI="http://castormaritime.com/role/TransactionsWithRelatedPartiesCastorShipsDetails" xlink:type="simple" xlink:href="ctrm-20211231.xsd#TransactionsWithRelatedPartiesCastorShipsDetails" />
  <link:roleRef roleURI="http://castormaritime.com/role/TransactionsWithRelatedPartiesThalassaDetails" xlink:type="simple" xlink:href="ctrm-20211231.xsd#TransactionsWithRelatedPartiesThalassaDetails" />
  <link:roleRef roleURI="http://castormaritime.com/role/TransactionsWithRelatedPartiesPavimarDetails" xlink:type="simple" xlink:href="ctrm-20211231.xsd#TransactionsWithRelatedPartiesPavimarDetails" />
  <link:roleRef roleURI="http://castormaritime.com/role/TransactionsWithRelatedPartiesSummaryDetails" xlink:type="simple" xlink:href="ctrm-20211231.xsd#TransactionsWithRelatedPartiesSummaryDetails" />
  <link:roleRef roleURI="http://castormaritime.com/role/SignificantAccountingPoliciesAndRecentAccountingPronouncementsRecentAccountingPronouncementsDetails" xlink:type="simple" xlink:href="ctrm-20211231.xsd#SignificantAccountingPoliciesAndRecentAccountingPronouncementsRecentAccountingPronouncementsDetails" />
  <link:roleRef roleURI="http://castormaritime.com/role/SignificantAccountingPoliciesAndRecentAccountingPronouncementsRevenuesRelatedToVoyageCharterContractsDetails" xlink:type="simple" xlink:href="ctrm-20211231.xsd#SignificantAccountingPoliciesAndRecentAccountingPronouncementsRevenuesRelatedToVoyageCharterContractsDetails" />
  <link:roleRef roleURI="http://castormaritime.com/role/SignificantAccountingPoliciesAndRecentAccountingPronouncementsVesselsDepreciationDetails" xlink:type="simple" xlink:href="ctrm-20211231.xsd#SignificantAccountingPoliciesAndRecentAccountingPronouncementsVesselsDepreciationDetails" />
  <link:roleRef roleURI="http://castormaritime.com/role/SignificantAccountingPoliciesAndRecentAccountingPronouncementsAccountsReceivableTradeNetDetails" xlink:type="simple" xlink:href="ctrm-20211231.xsd#SignificantAccountingPoliciesAndRecentAccountingPronouncementsAccountsReceivableTradeNetDetails" />
  <link:roleRef roleURI="http://castormaritime.com/role/SignificantAccountingPoliciesAndRecentAccountingPronouncementsSegmentReportingDetails" xlink:type="simple" xlink:href="ctrm-20211231.xsd#SignificantAccountingPoliciesAndRecentAccountingPronouncementsSegmentReportingDetails" />
  <link:roleRef roleURI="http://castormaritime.com/role/BasisOfPresentationAndGeneralInformationRevenueFromChartersDetails" xlink:type="simple" xlink:href="ctrm-20211231.xsd#BasisOfPresentationAndGeneralInformationRevenueFromChartersDetails" />
  <link:roleRef roleURI="http://castormaritime.com/role/BasisOfPresentationAndGeneralInformationVesselOwningSubsidiariesDetails" xlink:type="simple" xlink:href="ctrm-20211231.xsd#BasisOfPresentationAndGeneralInformationVesselOwningSubsidiariesDetails" />
  <link:roleRef roleURI="http://castormaritime.com/role/BasisOfPresentationAndGeneralInformationGeneralInformationDetails" xlink:type="simple" xlink:href="ctrm-20211231.xsd#BasisOfPresentationAndGeneralInformationGeneralInformationDetails" />
  <link:roleRef roleURI="http://castormaritime.com/role/SegmentInformationTables" xlink:type="simple" xlink:href="ctrm-20211231.xsd#SegmentInformationTables" />
  <link:roleRef roleURI="http://castormaritime.com/role/InterestAndFinanceCostsTables" xlink:type="simple" xlink:href="ctrm-20211231.xsd#InterestAndFinanceCostsTables" />
  <link:roleRef roleURI="http://castormaritime.com/role/GeneralAndAdministrativeExpensesTables" xlink:type="simple" xlink:href="ctrm-20211231.xsd#GeneralAndAdministrativeExpensesTables" />
  <link:roleRef roleURI="http://castormaritime.com/role/VesselOperatingAndVoyageExpensesTables" xlink:type="simple" xlink:href="ctrm-20211231.xsd#VesselOperatingAndVoyageExpensesTables" />
  <link:roleRef roleURI="http://castormaritime.com/role/VesselRevenuesTables" xlink:type="simple" xlink:href="ctrm-20211231.xsd#VesselRevenuesTables" />
  <link:roleRef roleURI="http://castormaritime.com/role/EarningsLossPerShareTables" xlink:type="simple" xlink:href="ctrm-20211231.xsd#EarningsLossPerShareTables" />
  <link:roleRef roleURI="http://castormaritime.com/role/CommitmentsAndContingenciesTables" xlink:type="simple" xlink:href="ctrm-20211231.xsd#CommitmentsAndContingenciesTables" />
  <link:roleRef roleURI="http://castormaritime.com/role/LongtermDebtTables" xlink:type="simple" xlink:href="ctrm-20211231.xsd#LongtermDebtTables" />
  <link:roleRef roleURI="http://castormaritime.com/role/VesselsNetAdvancesForVesselAcquisitionTables" xlink:type="simple" xlink:href="ctrm-20211231.xsd#VesselsNetAdvancesForVesselAcquisitionTables" />
  <link:roleRef roleURI="http://castormaritime.com/role/DeferredChargesNetTables" xlink:type="simple" xlink:href="ctrm-20211231.xsd#DeferredChargesNetTables" />
  <link:roleRef roleURI="http://castormaritime.com/role/TransactionsWithRelatedPartiesTables" xlink:type="simple" xlink:href="ctrm-20211231.xsd#TransactionsWithRelatedPartiesTables" />
  <link:roleRef roleURI="http://castormaritime.com/role/BasisOfPresentationAndGeneralInformationTables" xlink:type="simple" xlink:href="ctrm-20211231.xsd#BasisOfPresentationAndGeneralInformationTables" />
  <link:roleRef roleURI="http://castormaritime.com/role/SignificantAccountingPoliciesAndRecentAccountingPronouncementsPolicies" xlink:type="simple" xlink:href="ctrm-20211231.xsd#SignificantAccountingPoliciesAndRecentAccountingPronouncementsPolicies" />
  <link:roleRef roleURI="http://castormaritime.com/role/SubsequentEvents" xlink:type="simple" xlink:href="ctrm-20211231.xsd#SubsequentEvents" />
  <link:roleRef roleURI="http://castormaritime.com/role/SegmentInformation" xlink:type="simple" xlink:href="ctrm-20211231.xsd#SegmentInformation" />
  <link:roleRef roleURI="http://castormaritime.com/role/IncomeTaxes" xlink:type="simple" xlink:href="ctrm-20211231.xsd#IncomeTaxes" />
  <link:roleRef roleURI="http://castormaritime.com/role/InterestAndFinanceCosts" xlink:type="simple" xlink:href="ctrm-20211231.xsd#InterestAndFinanceCosts" />
  <link:roleRef roleURI="http://castormaritime.com/role/GeneralAndAdministrativeExpenses" xlink:type="simple" xlink:href="ctrm-20211231.xsd#GeneralAndAdministrativeExpenses" />
  <link:roleRef roleURI="http://castormaritime.com/role/VesselOperatingAndVoyageExpenses" xlink:type="simple" xlink:href="ctrm-20211231.xsd#VesselOperatingAndVoyageExpenses" />
  <link:roleRef roleURI="http://castormaritime.com/role/VesselRevenues" xlink:type="simple" xlink:href="ctrm-20211231.xsd#VesselRevenues" />
  <link:roleRef roleURI="http://castormaritime.com/role/EarningsLossPerShare" xlink:type="simple" xlink:href="ctrm-20211231.xsd#EarningsLossPerShare" />
  <link:roleRef roleURI="http://castormaritime.com/role/CommitmentsAndContingencies" xlink:type="simple" xlink:href="ctrm-20211231.xsd#CommitmentsAndContingencies" />
  <link:roleRef roleURI="http://castormaritime.com/role/FinancialInstrumentsAndFairValueDisclosures" xlink:type="simple" xlink:href="ctrm-20211231.xsd#FinancialInstrumentsAndFairValueDisclosures" />
  <link:roleRef roleURI="http://castormaritime.com/role/EquityCapitalStructure" xlink:type="simple" xlink:href="ctrm-20211231.xsd#EquityCapitalStructure" />
  <link:roleRef roleURI="http://castormaritime.com/role/LongtermDebt" xlink:type="simple" xlink:href="ctrm-20211231.xsd#LongtermDebt" />
  <link:roleRef roleURI="http://castormaritime.com/role/VesselsNetAdvancesForVesselAcquisition" xlink:type="simple" xlink:href="ctrm-20211231.xsd#VesselsNetAdvancesForVesselAcquisition" />
  <link:roleRef roleURI="http://castormaritime.com/role/FairValueOfAcquiredTimeCharter" xlink:type="simple" xlink:href="ctrm-20211231.xsd#FairValueOfAcquiredTimeCharter" />
  <link:roleRef roleURI="http://castormaritime.com/role/DeferredChargesNet" xlink:type="simple" xlink:href="ctrm-20211231.xsd#DeferredChargesNet" />
  <link:roleRef roleURI="http://castormaritime.com/role/TransactionsWithRelatedParties" xlink:type="simple" xlink:href="ctrm-20211231.xsd#TransactionsWithRelatedParties" />
  <link:roleRef roleURI="http://castormaritime.com/role/SignificantAccountingPoliciesAndRecentAccountingPronouncements" xlink:type="simple" xlink:href="ctrm-20211231.xsd#SignificantAccountingPoliciesAndRecentAccountingPronouncements" />
  <link:roleRef roleURI="http://castormaritime.com/role/BasisOfPresentationAndGeneralInformation" xlink:type="simple" xlink:href="ctrm-20211231.xsd#BasisOfPresentationAndGeneralInformation" />
  <link:roleRef roleURI="http://castormaritime.com/role/ConsolidatedStatementsOfCashFlowsParenthetical" xlink:type="simple" xlink:href="ctrm-20211231.xsd#ConsolidatedStatementsOfCashFlowsParenthetical" />
  <link:roleRef roleURI="http://castormaritime.com/role/ConsolidatedStatementsOfCashFlows" xlink:type="simple" xlink:href="ctrm-20211231.xsd#ConsolidatedStatementsOfCashFlows" />
  <link:roleRef roleURI="http://castormaritime.com/role/ConsolidatedStatementsOfShareholdersEquityParenthetical" xlink:type="simple" xlink:href="ctrm-20211231.xsd#ConsolidatedStatementsOfShareholdersEquityParenthetical" />
  <link:roleRef roleURI="http://castormaritime.com/role/ConsolidatedStatementsOfShareholdersEquity" xlink:type="simple" xlink:href="ctrm-20211231.xsd#ConsolidatedStatementsOfShareholdersEquity" />
  <link:roleRef roleURI="http://castormaritime.com/role/ConsolidatedStatementsOfComprehensiveIncomeLossParenthetical" xlink:type="simple" xlink:href="ctrm-20211231.xsd#ConsolidatedStatementsOfComprehensiveIncomeLossParenthetical" />
  <link:roleRef roleURI="http://castormaritime.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss" xlink:type="simple" xlink:href="ctrm-20211231.xsd#ConsolidatedStatementsOfComprehensiveIncomeLoss" />
  <link:roleRef roleURI="http://castormaritime.com/role/ConsolidatedBalanceSheetsParenthetical" xlink:type="simple" xlink:href="ctrm-20211231.xsd#ConsolidatedBalanceSheetsParenthetical" />
  <link:roleRef roleURI="http://castormaritime.com/role/ConsolidatedBalanceSheets" xlink:type="simple" xlink:href="ctrm-20211231.xsd#ConsolidatedBalanceSheets" />
  <link:roleRef roleURI="http://castormaritime.com/role/DocumentAndEntityInformation" xlink:type="simple" xlink:href="ctrm-20211231.xsd#DocumentAndEntityInformation" />
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/DocumentAndEntityInformation">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_CoverAbstract" xlink:label="CoverAbstract" xlink:title="CoverAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityListingsTable" xlink:label="EntityListingsTable" xlink:title="EntityListingsTable" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="StatementClassOfStockAxis" xlink:title="StatementClassOfStockAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="ClassOfStockDomain" xlink:title="ClassOfStockDomain" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CommonStockMember" xlink:label="CommonStockMember" xlink:title="CommonStockMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ClassOfStockDomain" xlink:to="CommonStockMember" xlink:title="presentation: ClassOfStockDomain to CommonStockMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_PreferredSharePurchaseRightsUnderStockholdersRightsAgreementMember" xlink:label="PreferredSharePurchaseRightsUnderStockholdersRightsAgreementMember" xlink:title="PreferredSharePurchaseRightsUnderStockholdersRightsAgreementMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ClassOfStockDomain" xlink:to="PreferredSharePurchaseRightsUnderStockholdersRightsAgreementMember" xlink:title="presentation: ClassOfStockDomain to PreferredSharePurchaseRightsUnderStockholdersRightsAgreementMember" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StatementClassOfStockAxis" xlink:to="ClassOfStockDomain" xlink:title="presentation: StatementClassOfStockAxis to ClassOfStockDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="EntityListingsTable" xlink:to="StatementClassOfStockAxis" xlink:title="presentation: EntityListingsTable to StatementClassOfStockAxis" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityAddressesAddressTypeAxis" xlink:label="EntityAddressesAddressTypeAxis" xlink:title="EntityAddressesAddressTypeAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_AddressTypeDomain" xlink:label="AddressTypeDomain" xlink:title="AddressTypeDomain" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_BusinessContactMember" xlink:label="BusinessContactMember" xlink:title="BusinessContactMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="AddressTypeDomain" xlink:to="BusinessContactMember" xlink:title="presentation: AddressTypeDomain to BusinessContactMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="EntityAddressesAddressTypeAxis" xlink:to="AddressTypeDomain" xlink:title="presentation: EntityAddressesAddressTypeAxis to AddressTypeDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="EntityListingsTable" xlink:to="EntityAddressesAddressTypeAxis" xlink:title="presentation: EntityListingsTable to EntityAddressesAddressTypeAxis" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityListingsLineItems" xlink:label="EntityListingsLineItems" xlink:title="EntityListingsLineItems" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_DocumentType" xlink:label="DocumentType" xlink:title="DocumentType" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="EntityListingsLineItems" xlink:to="DocumentType" xlink:title="presentation: EntityListingsLineItems to DocumentType" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_AmendmentFlag" xlink:label="AmendmentFlag" xlink:title="AmendmentFlag" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="EntityListingsLineItems" xlink:to="AmendmentFlag" xlink:title="presentation: EntityListingsLineItems to AmendmentFlag" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_DocumentRegistrationStatement" xlink:label="DocumentRegistrationStatement" xlink:title="DocumentRegistrationStatement" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="EntityListingsLineItems" xlink:to="DocumentRegistrationStatement" xlink:title="presentation: EntityListingsLineItems to DocumentRegistrationStatement" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_DocumentAnnualReport" xlink:label="DocumentAnnualReport" xlink:title="DocumentAnnualReport" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="EntityListingsLineItems" xlink:to="DocumentAnnualReport" xlink:title="presentation: EntityListingsLineItems to DocumentAnnualReport" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_DocumentPeriodEndDate" xlink:label="DocumentPeriodEndDate" xlink:title="DocumentPeriodEndDate" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="EntityListingsLineItems" xlink:to="DocumentPeriodEndDate" xlink:title="presentation: EntityListingsLineItems to DocumentPeriodEndDate" order="4.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_CurrentFiscalYearEndDate" xlink:label="CurrentFiscalYearEndDate" xlink:title="CurrentFiscalYearEndDate" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="EntityListingsLineItems" xlink:to="CurrentFiscalYearEndDate" xlink:title="presentation: EntityListingsLineItems to CurrentFiscalYearEndDate" order="5.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_DocumentFiscalYearFocus" xlink:label="DocumentFiscalYearFocus" xlink:title="DocumentFiscalYearFocus" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="EntityListingsLineItems" xlink:to="DocumentFiscalYearFocus" xlink:title="presentation: EntityListingsLineItems to DocumentFiscalYearFocus" order="6.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_DocumentFiscalPeriodFocus" xlink:label="DocumentFiscalPeriodFocus" xlink:title="DocumentFiscalPeriodFocus" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="EntityListingsLineItems" xlink:to="DocumentFiscalPeriodFocus" xlink:title="presentation: EntityListingsLineItems to DocumentFiscalPeriodFocus" order="7.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_DocumentTransitionReport" xlink:label="DocumentTransitionReport" xlink:title="DocumentTransitionReport" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="EntityListingsLineItems" xlink:to="DocumentTransitionReport" xlink:title="presentation: EntityListingsLineItems to DocumentTransitionReport" order="8.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_DocumentShellCompanyReport" xlink:label="DocumentShellCompanyReport" xlink:title="DocumentShellCompanyReport" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="EntityListingsLineItems" xlink:to="DocumentShellCompanyReport" xlink:title="presentation: EntityListingsLineItems to DocumentShellCompanyReport" order="9.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityFileNumber" xlink:label="EntityFileNumber" xlink:title="EntityFileNumber" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="EntityListingsLineItems" xlink:to="EntityFileNumber" xlink:title="presentation: EntityListingsLineItems to EntityFileNumber" order="10.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityRegistrantName" xlink:label="EntityRegistrantName" xlink:title="EntityRegistrantName" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="EntityListingsLineItems" xlink:to="EntityRegistrantName" xlink:title="presentation: EntityListingsLineItems to EntityRegistrantName" order="11.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityCentralIndexKey" xlink:label="EntityCentralIndexKey" xlink:title="EntityCentralIndexKey" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="EntityListingsLineItems" xlink:to="EntityCentralIndexKey" xlink:title="presentation: EntityListingsLineItems to EntityCentralIndexKey" order="12.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityIncorporationStateCountryCode" xlink:label="EntityIncorporationStateCountryCode" xlink:title="EntityIncorporationStateCountryCode" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="EntityListingsLineItems" xlink:to="EntityIncorporationStateCountryCode" xlink:title="presentation: EntityListingsLineItems to EntityIncorporationStateCountryCode" order="13.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_ContactPersonnelName" xlink:label="ContactPersonnelName" xlink:title="ContactPersonnelName" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="EntityListingsLineItems" xlink:to="ContactPersonnelName" xlink:title="presentation: EntityListingsLineItems to ContactPersonnelName" order="14.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityAddressAddressLine1" xlink:label="EntityAddressAddressLine1" xlink:title="EntityAddressAddressLine1" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="EntityListingsLineItems" xlink:to="EntityAddressAddressLine1" xlink:title="presentation: EntityListingsLineItems to EntityAddressAddressLine1" order="15.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityAddressAddressLine2" xlink:label="EntityAddressAddressLine2" xlink:title="EntityAddressAddressLine2" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="EntityListingsLineItems" xlink:to="EntityAddressAddressLine2" xlink:title="presentation: EntityListingsLineItems to EntityAddressAddressLine2" order="16.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityAddressPostalZipCode" xlink:label="EntityAddressPostalZipCode" xlink:title="EntityAddressPostalZipCode" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="EntityListingsLineItems" xlink:to="EntityAddressPostalZipCode" xlink:title="presentation: EntityListingsLineItems to EntityAddressPostalZipCode" order="17.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityAddressCityOrTown" xlink:label="EntityAddressCityOrTown" xlink:title="EntityAddressCityOrTown" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="EntityListingsLineItems" xlink:to="EntityAddressCityOrTown" xlink:title="presentation: EntityListingsLineItems to EntityAddressCityOrTown" order="18.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityAddressCountry" xlink:label="EntityAddressCountry" xlink:title="EntityAddressCountry" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="EntityListingsLineItems" xlink:to="EntityAddressCountry" xlink:title="presentation: EntityListingsLineItems to EntityAddressCountry" order="19.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_CountryRegion" xlink:label="CountryRegion" xlink:title="CountryRegion" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="EntityListingsLineItems" xlink:to="CountryRegion" xlink:title="presentation: EntityListingsLineItems to CountryRegion" order="20.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_CityAreaCode" xlink:label="CityAreaCode" xlink:title="CityAreaCode" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="EntityListingsLineItems" xlink:to="CityAreaCode" xlink:title="presentation: EntityListingsLineItems to CityAreaCode" order="21.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_LocalPhoneNumber" xlink:label="LocalPhoneNumber" xlink:title="LocalPhoneNumber" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="EntityListingsLineItems" xlink:to="LocalPhoneNumber" xlink:title="presentation: EntityListingsLineItems to LocalPhoneNumber" order="22.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_ContactPersonnelFaxNumber" xlink:label="ContactPersonnelFaxNumber" xlink:title="ContactPersonnelFaxNumber" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="EntityListingsLineItems" xlink:to="ContactPersonnelFaxNumber" xlink:title="presentation: EntityListingsLineItems to ContactPersonnelFaxNumber" order="23.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_Security12bTitle" xlink:label="Security12bTitle" xlink:title="Security12bTitle" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="EntityListingsLineItems" xlink:to="Security12bTitle" xlink:title="presentation: EntityListingsLineItems to Security12bTitle" order="24.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_TradingSymbol" xlink:label="TradingSymbol" xlink:title="TradingSymbol" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="EntityListingsLineItems" xlink:to="TradingSymbol" xlink:title="presentation: EntityListingsLineItems to TradingSymbol" order="25.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_SecurityExchangeName" xlink:label="SecurityExchangeName" xlink:title="SecurityExchangeName" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="EntityListingsLineItems" xlink:to="SecurityExchangeName" xlink:title="presentation: EntityListingsLineItems to SecurityExchangeName" order="26.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityCommonStockSharesOutstanding" xlink:label="EntityCommonStockSharesOutstanding" xlink:title="EntityCommonStockSharesOutstanding" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="EntityListingsLineItems" xlink:to="EntityCommonStockSharesOutstanding" xlink:title="presentation: EntityListingsLineItems to EntityCommonStockSharesOutstanding" order="27.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityWellKnownSeasonedIssuer" xlink:label="EntityWellKnownSeasonedIssuer" xlink:title="EntityWellKnownSeasonedIssuer" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="EntityListingsLineItems" xlink:to="EntityWellKnownSeasonedIssuer" xlink:title="presentation: EntityListingsLineItems to EntityWellKnownSeasonedIssuer" order="28.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityVoluntaryFilers" xlink:label="EntityVoluntaryFilers" xlink:title="EntityVoluntaryFilers" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="EntityListingsLineItems" xlink:to="EntityVoluntaryFilers" xlink:title="presentation: EntityListingsLineItems to EntityVoluntaryFilers" order="29.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityCurrentReportingStatus" xlink:label="EntityCurrentReportingStatus" xlink:title="EntityCurrentReportingStatus" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="EntityListingsLineItems" xlink:to="EntityCurrentReportingStatus" xlink:title="presentation: EntityListingsLineItems to EntityCurrentReportingStatus" order="30.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityInteractiveDataCurrent" xlink:label="EntityInteractiveDataCurrent" xlink:title="EntityInteractiveDataCurrent" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="EntityListingsLineItems" xlink:to="EntityInteractiveDataCurrent" xlink:title="presentation: EntityListingsLineItems to EntityInteractiveDataCurrent" order="31.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityFilerCategory" xlink:label="EntityFilerCategory" xlink:title="EntityFilerCategory" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="EntityListingsLineItems" xlink:to="EntityFilerCategory" xlink:title="presentation: EntityListingsLineItems to EntityFilerCategory" order="32.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityEmergingGrowthCompany" xlink:label="EntityEmergingGrowthCompany" xlink:title="EntityEmergingGrowthCompany" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="EntityListingsLineItems" xlink:to="EntityEmergingGrowthCompany" xlink:title="presentation: EntityListingsLineItems to EntityEmergingGrowthCompany" order="33.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityExTransitionPeriod" xlink:label="EntityExTransitionPeriod" xlink:title="EntityExTransitionPeriod" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="EntityListingsLineItems" xlink:to="EntityExTransitionPeriod" xlink:title="presentation: EntityListingsLineItems to EntityExTransitionPeriod" order="34.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_IcfrAuditorAttestationFlag" xlink:label="IcfrAuditorAttestationFlag" xlink:title="IcfrAuditorAttestationFlag" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="EntityListingsLineItems" xlink:to="IcfrAuditorAttestationFlag" xlink:title="presentation: EntityListingsLineItems to IcfrAuditorAttestationFlag" order="35.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_DocumentAccountingStandard" xlink:label="DocumentAccountingStandard" xlink:title="DocumentAccountingStandard" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="EntityListingsLineItems" xlink:to="DocumentAccountingStandard" xlink:title="presentation: EntityListingsLineItems to DocumentAccountingStandard" order="36.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityShellCompany" xlink:label="EntityShellCompany" xlink:title="EntityShellCompany" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="EntityListingsLineItems" xlink:to="EntityShellCompany" xlink:title="presentation: EntityListingsLineItems to EntityShellCompany" order="37.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_AuditorFirmId" xlink:label="AuditorFirmId" xlink:title="AuditorFirmId" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="EntityListingsLineItems" xlink:to="AuditorFirmId" xlink:title="presentation: EntityListingsLineItems to AuditorFirmId" order="38.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_AuditorName" xlink:label="AuditorName" xlink:title="AuditorName" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="EntityListingsLineItems" xlink:to="AuditorName" xlink:title="presentation: EntityListingsLineItems to AuditorName" order="39.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_AuditorLocation" xlink:label="AuditorLocation" xlink:title="AuditorLocation" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="EntityListingsLineItems" xlink:to="AuditorLocation" xlink:title="presentation: EntityListingsLineItems to AuditorLocation" order="40.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="EntityListingsTable" xlink:to="EntityListingsLineItems" xlink:title="presentation: EntityListingsTable to EntityListingsLineItems" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="CoverAbstract" xlink:to="EntityListingsTable" xlink:title="presentation: CoverAbstract to EntityListingsTable" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/ConsolidatedBalanceSheets">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementOfFinancialPositionAbstract" xlink:label="StatementOfFinancialPositionAbstract" xlink:title="StatementOfFinancialPositionAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementTable" xlink:label="StatementTable" xlink:title="StatementTable" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="StatementClassOfStockAxis" xlink:title="StatementClassOfStockAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="ClassOfStockDomain" xlink:title="ClassOfStockDomain" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SeriesAPreferredStockMember" xlink:label="SeriesAPreferredStockMember" xlink:title="SeriesAPreferredStockMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ClassOfStockDomain" xlink:to="SeriesAPreferredStockMember" xlink:title="presentation: ClassOfStockDomain to SeriesAPreferredStockMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SeriesBPreferredStockMember" xlink:label="SeriesBPreferredStockMember" xlink:title="SeriesBPreferredStockMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ClassOfStockDomain" xlink:to="SeriesBPreferredStockMember" xlink:title="presentation: ClassOfStockDomain to SeriesBPreferredStockMember" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StatementClassOfStockAxis" xlink:to="ClassOfStockDomain" xlink:title="presentation: StatementClassOfStockAxis to ClassOfStockDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StatementTable" xlink:to="StatementClassOfStockAxis" xlink:title="presentation: StatementTable to StatementClassOfStockAxis" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementLineItems" xlink:label="StatementLineItems" xlink:title="StatementLineItems" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AssetsAbstract" xlink:label="AssetsAbstract" xlink:title="AssetsAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AssetsCurrentAbstract" xlink:label="AssetsCurrentAbstract" xlink:title="AssetsCurrentAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="CashAndCashEquivalentsAtCarryingValue" xlink:title="CashAndCashEquivalentsAtCarryingValue" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="AssetsCurrentAbstract" xlink:to="CashAndCashEquivalentsAtCarryingValue" xlink:title="presentation: AssetsCurrentAbstract to CashAndCashEquivalentsAtCarryingValue" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RestrictedCashCurrent" xlink:label="RestrictedCashCurrent" xlink:title="RestrictedCashCurrent" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="AssetsCurrentAbstract" xlink:to="RestrictedCashCurrent" xlink:title="presentation: AssetsCurrentAbstract to RestrictedCashCurrent" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccountsReceivableNetCurrent" xlink:label="AccountsReceivableNetCurrent" xlink:title="AccountsReceivableNetCurrent" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="AssetsCurrentAbstract" xlink:to="AccountsReceivableNetCurrent" xlink:title="presentation: AssetsCurrentAbstract to AccountsReceivableNetCurrent" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DueFromRelatedPartiesCurrent" xlink:label="DueFromRelatedPartiesCurrent" xlink:title="DueFromRelatedPartiesCurrent" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="AssetsCurrentAbstract" xlink:to="DueFromRelatedPartiesCurrent" xlink:title="presentation: AssetsCurrentAbstract to DueFromRelatedPartiesCurrent" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InventoryNet" xlink:label="InventoryNet" xlink:title="InventoryNet" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="AssetsCurrentAbstract" xlink:to="InventoryNet" xlink:title="presentation: AssetsCurrentAbstract to InventoryNet" order="4.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PrepaidExpenseAndOtherAssetsCurrent" xlink:label="PrepaidExpenseAndOtherAssetsCurrent" xlink:title="PrepaidExpenseAndOtherAssetsCurrent" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="AssetsCurrentAbstract" xlink:to="PrepaidExpenseAndOtherAssetsCurrent" xlink:title="presentation: AssetsCurrentAbstract to PrepaidExpenseAndOtherAssetsCurrent" order="5.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CapitalizedContractCostNetCurrent" xlink:label="CapitalizedContractCostNetCurrent" xlink:title="CapitalizedContractCostNetCurrent" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="AssetsCurrentAbstract" xlink:to="CapitalizedContractCostNetCurrent" xlink:title="presentation: AssetsCurrentAbstract to CapitalizedContractCostNetCurrent" order="6.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AssetsCurrent" xlink:label="AssetsCurrent" xlink:title="AssetsCurrent" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="AssetsCurrentAbstract" xlink:to="AssetsCurrent" xlink:title="presentation: AssetsCurrentAbstract to AssetsCurrent" order="7.0" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="AssetsAbstract" xlink:to="AssetsCurrentAbstract" xlink:title="presentation: AssetsAbstract to AssetsCurrentAbstract" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AssetsNoncurrentAbstract" xlink:label="AssetsNoncurrentAbstract" xlink:title="AssetsNoncurrentAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="PropertyPlantAndEquipmentNet" xlink:title="PropertyPlantAndEquipmentNet" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="AssetsNoncurrentAbstract" xlink:to="PropertyPlantAndEquipmentNet" xlink:title="presentation: AssetsNoncurrentAbstract to PropertyPlantAndEquipmentNet" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_AdvancesForVesselAcquisitions" xlink:label="AdvancesForVesselAcquisitions" xlink:title="AdvancesForVesselAcquisitions" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="AssetsNoncurrentAbstract" xlink:to="AdvancesForVesselAcquisitions" xlink:title="presentation: AssetsNoncurrentAbstract to AdvancesForVesselAcquisitions" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RestrictedCashNoncurrent" xlink:label="RestrictedCashNoncurrent" xlink:title="RestrictedCashNoncurrent" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="AssetsNoncurrentAbstract" xlink:to="RestrictedCashNoncurrent" xlink:title="presentation: AssetsNoncurrentAbstract to RestrictedCashNoncurrent" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DueFromRelatedPartiesNoncurrent" xlink:label="DueFromRelatedPartiesNoncurrent" xlink:title="DueFromRelatedPartiesNoncurrent" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="AssetsNoncurrentAbstract" xlink:to="DueFromRelatedPartiesNoncurrent" xlink:title="presentation: AssetsNoncurrentAbstract to DueFromRelatedPartiesNoncurrent" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PrepaidExpenseAndOtherAssetsNoncurrent" xlink:label="PrepaidExpenseAndOtherAssetsNoncurrent" xlink:title="PrepaidExpenseAndOtherAssetsNoncurrent" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="AssetsNoncurrentAbstract" xlink:to="PrepaidExpenseAndOtherAssetsNoncurrent" xlink:title="presentation: AssetsNoncurrentAbstract to PrepaidExpenseAndOtherAssetsNoncurrent" order="4.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CapitalizedContractCostNetNoncurrent" xlink:label="CapitalizedContractCostNetNoncurrent" xlink:title="CapitalizedContractCostNetNoncurrent" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="AssetsNoncurrentAbstract" xlink:to="CapitalizedContractCostNetNoncurrent" xlink:title="presentation: AssetsNoncurrentAbstract to CapitalizedContractCostNetNoncurrent" order="5.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AssetsNoncurrent" xlink:label="AssetsNoncurrent" xlink:title="AssetsNoncurrent" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="AssetsNoncurrentAbstract" xlink:to="AssetsNoncurrent" xlink:title="presentation: AssetsNoncurrentAbstract to AssetsNoncurrent" order="6.0" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="AssetsAbstract" xlink:to="AssetsNoncurrentAbstract" xlink:title="presentation: AssetsAbstract to AssetsNoncurrentAbstract" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_Assets" xlink:label="Assets" xlink:title="Assets" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="AssetsAbstract" xlink:to="Assets" xlink:title="presentation: AssetsAbstract to Assets" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StatementLineItems" xlink:to="AssetsAbstract" xlink:title="presentation: StatementLineItems to AssetsAbstract" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquityAbstract" xlink:label="LiabilitiesAndStockholdersEquityAbstract" xlink:title="LiabilitiesAndStockholdersEquityAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LiabilitiesCurrentAbstract" xlink:label="LiabilitiesCurrentAbstract" xlink:title="LiabilitiesCurrentAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SecuredDebtCurrent" xlink:label="SecuredDebtCurrent" xlink:title="SecuredDebtCurrent" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="LiabilitiesCurrentAbstract" xlink:to="SecuredDebtCurrent" xlink:title="presentation: LiabilitiesCurrentAbstract to SecuredDebtCurrent" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NotesPayableRelatedPartiesClassifiedCurrent" xlink:label="NotesPayableRelatedPartiesClassifiedCurrent" xlink:title="NotesPayableRelatedPartiesClassifiedCurrent" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="LiabilitiesCurrentAbstract" xlink:to="NotesPayableRelatedPartiesClassifiedCurrent" xlink:title="presentation: LiabilitiesCurrentAbstract to NotesPayableRelatedPartiesClassifiedCurrent" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccountsPayableCurrent" xlink:label="AccountsPayableCurrent" xlink:title="AccountsPayableCurrent" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="LiabilitiesCurrentAbstract" xlink:to="AccountsPayableCurrent" xlink:title="presentation: LiabilitiesCurrentAbstract to AccountsPayableCurrent" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccountsPayableRelatedPartiesCurrent" xlink:label="AccountsPayableRelatedPartiesCurrent" xlink:title="AccountsPayableRelatedPartiesCurrent" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="LiabilitiesCurrentAbstract" xlink:to="AccountsPayableRelatedPartiesCurrent" xlink:title="presentation: LiabilitiesCurrentAbstract to AccountsPayableRelatedPartiesCurrent" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ContractWithCustomerLiabilityCurrent" xlink:label="ContractWithCustomerLiabilityCurrent" xlink:title="ContractWithCustomerLiabilityCurrent" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="LiabilitiesCurrentAbstract" xlink:to="ContractWithCustomerLiabilityCurrent" xlink:title="presentation: LiabilitiesCurrentAbstract to ContractWithCustomerLiabilityCurrent" order="4.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccruedLiabilitiesCurrent" xlink:label="AccruedLiabilitiesCurrent" xlink:title="AccruedLiabilitiesCurrent" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="LiabilitiesCurrentAbstract" xlink:to="AccruedLiabilitiesCurrent" xlink:title="presentation: LiabilitiesCurrentAbstract to AccruedLiabilitiesCurrent" order="5.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LiabilitiesCurrent" xlink:label="LiabilitiesCurrent" xlink:title="LiabilitiesCurrent" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="LiabilitiesCurrentAbstract" xlink:to="LiabilitiesCurrent" xlink:title="presentation: LiabilitiesCurrentAbstract to LiabilitiesCurrent" order="6.0" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="LiabilitiesAndStockholdersEquityAbstract" xlink:to="LiabilitiesCurrentAbstract" xlink:title="presentation: LiabilitiesAndStockholdersEquityAbstract to LiabilitiesCurrentAbstract" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CommitmentsAndContingencies" xlink:label="CommitmentsAndContingencies" xlink:title="CommitmentsAndContingencies" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="LiabilitiesAndStockholdersEquityAbstract" xlink:to="CommitmentsAndContingencies" xlink:title="presentation: LiabilitiesAndStockholdersEquityAbstract to CommitmentsAndContingencies" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LiabilitiesNoncurrentAbstract" xlink:label="LiabilitiesNoncurrentAbstract" xlink:title="LiabilitiesNoncurrentAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SecuredLongTermDebt" xlink:label="SecuredLongTermDebt" xlink:title="SecuredLongTermDebt" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="LiabilitiesNoncurrentAbstract" xlink:to="SecuredLongTermDebt" xlink:title="presentation: LiabilitiesNoncurrentAbstract to SecuredLongTermDebt" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LiabilitiesNoncurrent" xlink:label="LiabilitiesNoncurrent" xlink:title="LiabilitiesNoncurrent" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="LiabilitiesNoncurrentAbstract" xlink:to="LiabilitiesNoncurrent" xlink:title="presentation: LiabilitiesNoncurrentAbstract to LiabilitiesNoncurrent" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="LiabilitiesAndStockholdersEquityAbstract" xlink:to="LiabilitiesNoncurrentAbstract" xlink:title="presentation: LiabilitiesAndStockholdersEquityAbstract to LiabilitiesNoncurrentAbstract" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockholdersEquityAbstract" xlink:label="StockholdersEquityAbstract" xlink:title="StockholdersEquityAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CommonStockValue" xlink:label="CommonStockValue" xlink:title="CommonStockValue" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StockholdersEquityAbstract" xlink:to="CommonStockValue" xlink:title="presentation: StockholdersEquityAbstract to CommonStockValue" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PreferredStockValue" xlink:label="PreferredStockValue" xlink:title="PreferredStockValue" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StockholdersEquityAbstract" xlink:to="PreferredStockValue" xlink:title="presentation: StockholdersEquityAbstract to PreferredStockValue" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AdditionalPaidInCapital" xlink:label="AdditionalPaidInCapital" xlink:title="AdditionalPaidInCapital" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StockholdersEquityAbstract" xlink:to="AdditionalPaidInCapital" xlink:title="presentation: StockholdersEquityAbstract to AdditionalPaidInCapital" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RetainedEarningsAccumulatedDeficit" xlink:label="RetainedEarningsAccumulatedDeficit" xlink:title="RetainedEarningsAccumulatedDeficit" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StockholdersEquityAbstract" xlink:to="RetainedEarningsAccumulatedDeficit" xlink:title="presentation: StockholdersEquityAbstract to RetainedEarningsAccumulatedDeficit" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockholdersEquity" xlink:label="StockholdersEquity" xlink:title="StockholdersEquity" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StockholdersEquityAbstract" xlink:to="StockholdersEquity" xlink:title="presentation: StockholdersEquityAbstract to StockholdersEquity" order="4.0" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="LiabilitiesAndStockholdersEquityAbstract" xlink:to="StockholdersEquityAbstract" xlink:title="presentation: LiabilitiesAndStockholdersEquityAbstract to StockholdersEquityAbstract" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquity" xlink:label="LiabilitiesAndStockholdersEquity" xlink:title="LiabilitiesAndStockholdersEquity" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="LiabilitiesAndStockholdersEquityAbstract" xlink:to="LiabilitiesAndStockholdersEquity" xlink:title="presentation: LiabilitiesAndStockholdersEquityAbstract to LiabilitiesAndStockholdersEquity" order="4.0" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StatementLineItems" xlink:to="LiabilitiesAndStockholdersEquityAbstract" xlink:title="presentation: StatementLineItems to LiabilitiesAndStockholdersEquityAbstract" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StatementTable" xlink:to="StatementLineItems" xlink:title="presentation: StatementTable to StatementLineItems" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StatementOfFinancialPositionAbstract" xlink:to="StatementTable" xlink:title="presentation: StatementOfFinancialPositionAbstract to StatementTable" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/ConsolidatedBalanceSheetsParenthetical">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementOfFinancialPositionAbstract" xlink:label="StatementOfFinancialPositionAbstract" xlink:title="StatementOfFinancialPositionAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementTable" xlink:label="StatementTable" xlink:title="StatementTable" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="StatementClassOfStockAxis" xlink:title="StatementClassOfStockAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="ClassOfStockDomain" xlink:title="ClassOfStockDomain" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SeriesAPreferredStockMember" xlink:label="SeriesAPreferredStockMember" xlink:title="SeriesAPreferredStockMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ClassOfStockDomain" xlink:to="SeriesAPreferredStockMember" xlink:title="presentation: ClassOfStockDomain to SeriesAPreferredStockMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SeriesBPreferredStockMember" xlink:label="SeriesBPreferredStockMember" xlink:title="SeriesBPreferredStockMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ClassOfStockDomain" xlink:to="SeriesBPreferredStockMember" xlink:title="presentation: ClassOfStockDomain to SeriesBPreferredStockMember" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StatementClassOfStockAxis" xlink:to="ClassOfStockDomain" xlink:title="presentation: StatementClassOfStockAxis to ClassOfStockDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StatementTable" xlink:to="StatementClassOfStockAxis" xlink:title="presentation: StatementTable to StatementClassOfStockAxis" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementLineItems" xlink:label="StatementLineItems" xlink:title="StatementLineItems" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AssetsAbstract" xlink:label="AssetsAbstract" xlink:title="AssetsAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AssetsCurrentAbstract" xlink:label="AssetsCurrentAbstract" xlink:title="AssetsCurrentAbstract" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_RelatedPartyTransactionSaleAndPurchaseCommission" xlink:label="RelatedPartyTransactionSaleAndPurchaseCommission" xlink:title="RelatedPartyTransactionSaleAndPurchaseCommission" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="AssetsCurrentAbstract" xlink:to="RelatedPartyTransactionSaleAndPurchaseCommission" xlink:title="presentation: AssetsCurrentAbstract to RelatedPartyTransactionSaleAndPurchaseCommission" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="AssetsAbstract" xlink:to="AssetsCurrentAbstract" xlink:title="presentation: AssetsAbstract to AssetsCurrentAbstract" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StatementLineItems" xlink:to="AssetsAbstract" xlink:title="presentation: StatementLineItems to AssetsAbstract" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquityAbstract" xlink:label="LiabilitiesAndStockholdersEquityAbstract" xlink:title="LiabilitiesAndStockholdersEquityAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LiabilitiesCurrentAbstract" xlink:label="LiabilitiesCurrentAbstract" xlink:title="LiabilitiesCurrentAbstract" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_AccruedInterestRelatedPartiesCurrent" xlink:label="AccruedInterestRelatedPartiesCurrent" xlink:title="AccruedInterestRelatedPartiesCurrent" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="LiabilitiesCurrentAbstract" xlink:to="AccruedInterestRelatedPartiesCurrent" xlink:title="presentation: LiabilitiesCurrentAbstract to AccruedInterestRelatedPartiesCurrent" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="LiabilitiesAndStockholdersEquityAbstract" xlink:to="LiabilitiesCurrentAbstract" xlink:title="presentation: LiabilitiesAndStockholdersEquityAbstract to LiabilitiesCurrentAbstract" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockholdersEquityAbstract" xlink:label="StockholdersEquityAbstract" xlink:title="StockholdersEquityAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CommonStockParOrStatedValuePerShare" xlink:label="CommonStockParOrStatedValuePerShare" xlink:title="CommonStockParOrStatedValuePerShare" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StockholdersEquityAbstract" xlink:to="CommonStockParOrStatedValuePerShare" xlink:title="presentation: StockholdersEquityAbstract to CommonStockParOrStatedValuePerShare" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CommonStockSharesAuthorized" xlink:label="CommonStockSharesAuthorized" xlink:title="CommonStockSharesAuthorized" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StockholdersEquityAbstract" xlink:to="CommonStockSharesAuthorized" xlink:title="presentation: StockholdersEquityAbstract to CommonStockSharesAuthorized" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CommonStockSharesIssued" xlink:label="CommonStockSharesIssued" xlink:title="CommonStockSharesIssued" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StockholdersEquityAbstract" xlink:to="CommonStockSharesIssued" xlink:title="presentation: StockholdersEquityAbstract to CommonStockSharesIssued" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CommonStockSharesOutstanding" xlink:label="CommonStockSharesOutstanding" xlink:title="CommonStockSharesOutstanding" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StockholdersEquityAbstract" xlink:to="CommonStockSharesOutstanding" xlink:title="presentation: StockholdersEquityAbstract to CommonStockSharesOutstanding" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PreferredStockParOrStatedValuePerShare" xlink:label="PreferredStockParOrStatedValuePerShare" xlink:title="PreferredStockParOrStatedValuePerShare" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StockholdersEquityAbstract" xlink:to="PreferredStockParOrStatedValuePerShare" xlink:title="presentation: StockholdersEquityAbstract to PreferredStockParOrStatedValuePerShare" order="4.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PreferredStockSharesAuthorized" xlink:label="PreferredStockSharesAuthorized" xlink:title="PreferredStockSharesAuthorized" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StockholdersEquityAbstract" xlink:to="PreferredStockSharesAuthorized" xlink:title="presentation: StockholdersEquityAbstract to PreferredStockSharesAuthorized" order="5.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PreferredStockDividendRatePercentage" xlink:label="PreferredStockDividendRatePercentage" xlink:title="PreferredStockDividendRatePercentage" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StockholdersEquityAbstract" xlink:to="PreferredStockDividendRatePercentage" xlink:title="presentation: StockholdersEquityAbstract to PreferredStockDividendRatePercentage" order="6.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PreferredStockSharesIssued" xlink:label="PreferredStockSharesIssued" xlink:title="PreferredStockSharesIssued" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StockholdersEquityAbstract" xlink:to="PreferredStockSharesIssued" xlink:title="presentation: StockholdersEquityAbstract to PreferredStockSharesIssued" order="7.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PreferredStockSharesOutstanding" xlink:label="PreferredStockSharesOutstanding" xlink:title="PreferredStockSharesOutstanding" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StockholdersEquityAbstract" xlink:to="PreferredStockSharesOutstanding" xlink:title="presentation: StockholdersEquityAbstract to PreferredStockSharesOutstanding" order="8.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="LiabilitiesAndStockholdersEquityAbstract" xlink:to="StockholdersEquityAbstract" xlink:title="presentation: LiabilitiesAndStockholdersEquityAbstract to StockholdersEquityAbstract" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StatementLineItems" xlink:to="LiabilitiesAndStockholdersEquityAbstract" xlink:title="presentation: StatementLineItems to LiabilitiesAndStockholdersEquityAbstract" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StatementTable" xlink:to="StatementLineItems" xlink:title="presentation: StatementTable to StatementLineItems" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StatementOfFinancialPositionAbstract" xlink:to="StatementTable" xlink:title="presentation: StatementOfFinancialPositionAbstract to StatementTable" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeStatementAbstract" xlink:label="IncomeStatementAbstract" xlink:title="IncomeStatementAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RevenuesAbstract" xlink:label="RevenuesAbstract" xlink:title="RevenuesAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OperatingLeaseLeaseIncome" xlink:label="OperatingLeaseLeaseIncome" xlink:title="OperatingLeaseLeaseIncome" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RevenuesAbstract" xlink:to="OperatingLeaseLeaseIncome" xlink:title="presentation: RevenuesAbstract to OperatingLeaseLeaseIncome" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_Revenues" xlink:label="Revenues" xlink:title="Revenues" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RevenuesAbstract" xlink:to="Revenues" xlink:title="presentation: RevenuesAbstract to Revenues" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IncomeStatementAbstract" xlink:to="RevenuesAbstract" xlink:title="presentation: IncomeStatementAbstract to RevenuesAbstract" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CostsAndExpensesAbstract" xlink:label="CostsAndExpensesAbstract" xlink:title="CostsAndExpensesAbstract" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_VoyageExpenses" xlink:label="VoyageExpenses" xlink:title="VoyageExpenses" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="CostsAndExpensesAbstract" xlink:to="VoyageExpenses" xlink:title="presentation: CostsAndExpensesAbstract to VoyageExpenses" order="0.0" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OperatingCostsAndExpenses" xlink:label="OperatingCostsAndExpenses" xlink:title="OperatingCostsAndExpenses" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="CostsAndExpensesAbstract" xlink:to="OperatingCostsAndExpenses" xlink:title="presentation: CostsAndExpensesAbstract to OperatingCostsAndExpenses" order="1.0" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_RelatedPartyTransactionManagementFees" xlink:label="RelatedPartyTransactionManagementFees" xlink:title="RelatedPartyTransactionManagementFees" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="CostsAndExpensesAbstract" xlink:to="RelatedPartyTransactionManagementFees" xlink:title="presentation: CostsAndExpensesAbstract to RelatedPartyTransactionManagementFees" order="2.0" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DepreciationDepletionAndAmortization" xlink:label="DepreciationDepletionAndAmortization" xlink:title="DepreciationDepletionAndAmortization" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="CostsAndExpensesAbstract" xlink:to="DepreciationDepletionAndAmortization" xlink:title="presentation: CostsAndExpensesAbstract to DepreciationDepletionAndAmortization" order="3.0" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProvisionForDoubtfulAccounts" xlink:label="ProvisionForDoubtfulAccounts" xlink:title="ProvisionForDoubtfulAccounts" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="CostsAndExpensesAbstract" xlink:to="ProvisionForDoubtfulAccounts" xlink:title="presentation: CostsAndExpensesAbstract to ProvisionForDoubtfulAccounts" order="4.0" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_GeneralAndAdministrativeExpenseAbstract" xlink:label="GeneralAndAdministrativeExpenseAbstract" xlink:title="GeneralAndAdministrativeExpenseAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_GeneralAndAdministrativeExpense" xlink:label="GeneralAndAdministrativeExpense" xlink:title="GeneralAndAdministrativeExpense" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="GeneralAndAdministrativeExpenseAbstract" xlink:to="GeneralAndAdministrativeExpense" xlink:title="presentation: GeneralAndAdministrativeExpenseAbstract to GeneralAndAdministrativeExpense" order="0.0" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_PublicRegistrationCosts" xlink:label="PublicRegistrationCosts" xlink:title="PublicRegistrationCosts" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="GeneralAndAdministrativeExpenseAbstract" xlink:to="PublicRegistrationCosts" xlink:title="presentation: GeneralAndAdministrativeExpenseAbstract to PublicRegistrationCosts" order="1.0" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="CostsAndExpensesAbstract" xlink:to="GeneralAndAdministrativeExpenseAbstract" xlink:title="presentation: CostsAndExpensesAbstract to GeneralAndAdministrativeExpenseAbstract" order="5.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CostsAndExpenses" xlink:label="CostsAndExpenses" xlink:title="CostsAndExpenses" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="CostsAndExpensesAbstract" xlink:to="CostsAndExpenses" xlink:title="presentation: CostsAndExpensesAbstract to CostsAndExpenses" order="6.0" preferredLabel="http://www.xbrl.org/2009/role/negatedTotalLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IncomeStatementAbstract" xlink:to="CostsAndExpensesAbstract" xlink:title="presentation: IncomeStatementAbstract to CostsAndExpensesAbstract" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OperatingIncomeLoss" xlink:label="OperatingIncomeLoss" xlink:title="OperatingIncomeLoss" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IncomeStatementAbstract" xlink:to="OperatingIncomeLoss" xlink:title="presentation: IncomeStatementAbstract to OperatingIncomeLoss" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherIncomeAndExpensesAbstract" xlink:label="OtherIncomeAndExpensesAbstract" xlink:title="OtherIncomeAndExpensesAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InterestExpense" xlink:label="InterestExpense" xlink:title="InterestExpense" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="OtherIncomeAndExpensesAbstract" xlink:to="InterestExpense" xlink:title="presentation: OtherIncomeAndExpensesAbstract to InterestExpense" order="0.0" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InvestmentIncomeInterest" xlink:label="InvestmentIncomeInterest" xlink:title="InvestmentIncomeInterest" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="OtherIncomeAndExpensesAbstract" xlink:to="InvestmentIncomeInterest" xlink:title="presentation: OtherIncomeAndExpensesAbstract to InvestmentIncomeInterest" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ForeignCurrencyTransactionGainLossBeforeTax" xlink:label="ForeignCurrencyTransactionGainLossBeforeTax" xlink:title="ForeignCurrencyTransactionGainLossBeforeTax" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="OtherIncomeAndExpensesAbstract" xlink:to="ForeignCurrencyTransactionGainLossBeforeTax" xlink:title="presentation: OtherIncomeAndExpensesAbstract to ForeignCurrencyTransactionGainLossBeforeTax" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NonoperatingIncomeExpense" xlink:label="NonoperatingIncomeExpense" xlink:title="NonoperatingIncomeExpense" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="OtherIncomeAndExpensesAbstract" xlink:to="NonoperatingIncomeExpense" xlink:title="presentation: OtherIncomeAndExpensesAbstract to NonoperatingIncomeExpense" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IncomeStatementAbstract" xlink:to="OtherIncomeAndExpensesAbstract" xlink:title="presentation: IncomeStatementAbstract to OtherIncomeAndExpensesAbstract" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xlink:label="IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xlink:title="IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IncomeStatementAbstract" xlink:to="IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xlink:title="presentation: IncomeStatementAbstract to IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" order="4.0" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="IncomeTaxExpenseBenefit" xlink:title="IncomeTaxExpenseBenefit" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IncomeStatementAbstract" xlink:to="IncomeTaxExpenseBenefit" xlink:title="presentation: IncomeStatementAbstract to IncomeTaxExpenseBenefit" order="5.0" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="NetIncomeLoss" xlink:title="NetIncomeLoss" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IncomeStatementAbstract" xlink:to="NetIncomeLoss" xlink:title="presentation: IncomeStatementAbstract to NetIncomeLoss" order="6.0" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ComprehensiveIncomeNetOfTax" xlink:label="ComprehensiveIncomeNetOfTax" xlink:title="ComprehensiveIncomeNetOfTax" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IncomeStatementAbstract" xlink:to="ComprehensiveIncomeNetOfTax" xlink:title="presentation: IncomeStatementAbstract to ComprehensiveIncomeNetOfTax" order="7.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherPreferredStockDividendsAndAdjustments" xlink:label="OtherPreferredStockDividendsAndAdjustments" xlink:title="OtherPreferredStockDividendsAndAdjustments" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IncomeStatementAbstract" xlink:to="OtherPreferredStockDividendsAndAdjustments" xlink:title="presentation: IncomeStatementAbstract to OtherPreferredStockDividendsAndAdjustments" order="8.0" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PreferredStockRedemptionDiscount" xlink:label="PreferredStockRedemptionDiscount" xlink:title="PreferredStockRedemptionDiscount" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IncomeStatementAbstract" xlink:to="PreferredStockRedemptionDiscount" xlink:title="presentation: IncomeStatementAbstract to PreferredStockRedemptionDiscount" order="9.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PreferredStockDividendsIncomeStatementImpact" xlink:label="PreferredStockDividendsIncomeStatementImpact" xlink:title="PreferredStockDividendsIncomeStatementImpact" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IncomeStatementAbstract" xlink:to="PreferredStockDividendsIncomeStatementImpact" xlink:title="presentation: IncomeStatementAbstract to PreferredStockDividendsIncomeStatementImpact" order="10.0" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic" xlink:label="NetIncomeLossAvailableToCommonStockholdersBasic" xlink:title="NetIncomeLossAvailableToCommonStockholdersBasic" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IncomeStatementAbstract" xlink:to="NetIncomeLossAvailableToCommonStockholdersBasic" xlink:title="presentation: IncomeStatementAbstract to NetIncomeLossAvailableToCommonStockholdersBasic" order="11.0" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EarningsPerShareBasic" xlink:label="EarningsPerShareBasic" xlink:title="EarningsPerShareBasic" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IncomeStatementAbstract" xlink:to="EarningsPerShareBasic" xlink:title="presentation: IncomeStatementAbstract to EarningsPerShareBasic" order="12.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EarningsPerShareDiluted" xlink:label="EarningsPerShareDiluted" xlink:title="EarningsPerShareDiluted" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IncomeStatementAbstract" xlink:to="EarningsPerShareDiluted" xlink:title="presentation: IncomeStatementAbstract to EarningsPerShareDiluted" order="13.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:label="WeightedAverageNumberOfSharesOutstandingBasic" xlink:title="WeightedAverageNumberOfSharesOutstandingBasic" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IncomeStatementAbstract" xlink:to="WeightedAverageNumberOfSharesOutstandingBasic" xlink:title="presentation: IncomeStatementAbstract to WeightedAverageNumberOfSharesOutstandingBasic" order="14.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:label="WeightedAverageNumberOfDilutedSharesOutstanding" xlink:title="WeightedAverageNumberOfDilutedSharesOutstanding" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IncomeStatementAbstract" xlink:to="WeightedAverageNumberOfDilutedSharesOutstanding" xlink:title="presentation: IncomeStatementAbstract to WeightedAverageNumberOfDilutedSharesOutstanding" order="15.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/ConsolidatedStatementsOfComprehensiveIncomeLossParenthetical">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeStatementAbstract" xlink:label="IncomeStatementAbstract" xlink:title="IncomeStatementAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RevenuesAbstract" xlink:label="RevenuesAbstract" xlink:title="RevenuesAbstract" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_AddressCommissions" xlink:label="AddressCommissions" xlink:title="AddressCommissions" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RevenuesAbstract" xlink:to="AddressCommissions" xlink:title="presentation: RevenuesAbstract to AddressCommissions" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IncomeStatementAbstract" xlink:to="RevenuesAbstract" xlink:title="presentation: IncomeStatementAbstract to RevenuesAbstract" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CostsAndExpensesAbstract" xlink:label="CostsAndExpensesAbstract" xlink:title="CostsAndExpensesAbstract" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_VoyageExpensesRelatedParty" xlink:label="VoyageExpensesRelatedParty" xlink:title="VoyageExpensesRelatedParty" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="CostsAndExpensesAbstract" xlink:to="VoyageExpensesRelatedParty" xlink:title="presentation: CostsAndExpensesAbstract to VoyageExpensesRelatedParty" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RelatedPartyTransactionSellingGeneralAndAdministrativeExpensesFromTransactionsWithRelatedParty" xlink:label="RelatedPartyTransactionSellingGeneralAndAdministrativeExpensesFromTransactionsWithRelatedParty" xlink:title="RelatedPartyTransactionSellingGeneralAndAdministrativeExpensesFromTransactionsWithRelatedParty" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="CostsAndExpensesAbstract" xlink:to="RelatedPartyTransactionSellingGeneralAndAdministrativeExpensesFromTransactionsWithRelatedParty" xlink:title="presentation: CostsAndExpensesAbstract to RelatedPartyTransactionSellingGeneralAndAdministrativeExpensesFromTransactionsWithRelatedParty" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IncomeStatementAbstract" xlink:to="CostsAndExpensesAbstract" xlink:title="presentation: IncomeStatementAbstract to CostsAndExpensesAbstract" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherIncomeAndExpensesAbstract" xlink:label="OtherIncomeAndExpensesAbstract" xlink:title="OtherIncomeAndExpensesAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InterestExpenseRelatedParty" xlink:label="InterestExpenseRelatedParty" xlink:title="InterestExpenseRelatedParty" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="OtherIncomeAndExpensesAbstract" xlink:to="InterestExpenseRelatedParty" xlink:title="presentation: OtherIncomeAndExpensesAbstract to InterestExpenseRelatedParty" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IncomeStatementAbstract" xlink:to="OtherIncomeAndExpensesAbstract" xlink:title="presentation: IncomeStatementAbstract to OtherIncomeAndExpensesAbstract" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/ConsolidatedStatementsOfShareholdersEquity">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementOfStockholdersEquityAbstract" xlink:label="StatementOfStockholdersEquityAbstract" xlink:title="StatementOfStockholdersEquityAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementTable" xlink:label="StatementTable" xlink:title="StatementTable" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementEquityComponentsAxis" xlink:label="StatementEquityComponentsAxis" xlink:title="StatementEquityComponentsAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CommonStockMember" xlink:label="CommonStockMember" xlink:title="CommonStockMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StatementEquityComponentsAxis" xlink:to="CommonStockMember" xlink:title="presentation: StatementEquityComponentsAxis to CommonStockMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PreferredStockMember" xlink:label="PreferredStockMember" xlink:title="PreferredStockMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StatementEquityComponentsAxis" xlink:to="PreferredStockMember" xlink:title="presentation: StatementEquityComponentsAxis to PreferredStockMember" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_ParValueOfSharesIssuedMember" xlink:label="ParValueOfSharesIssuedMember" xlink:title="ParValueOfSharesIssuedMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StatementEquityComponentsAxis" xlink:to="ParValueOfSharesIssuedMember" xlink:title="presentation: StatementEquityComponentsAxis to ParValueOfSharesIssuedMember" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AdditionalPaidInCapitalMember" xlink:label="AdditionalPaidInCapitalMember" xlink:title="AdditionalPaidInCapitalMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StatementEquityComponentsAxis" xlink:to="AdditionalPaidInCapitalMember" xlink:title="presentation: StatementEquityComponentsAxis to AdditionalPaidInCapitalMember" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RetainedEarningsMember" xlink:label="RetainedEarningsMember" xlink:title="RetainedEarningsMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StatementEquityComponentsAxis" xlink:to="RetainedEarningsMember" xlink:title="presentation: StatementEquityComponentsAxis to RetainedEarningsMember" order="4.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="EquityComponentDomain" xlink:title="EquityComponentDomain" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StatementEquityComponentsAxis" xlink:to="EquityComponentDomain" xlink:title="presentation: StatementEquityComponentsAxis to EquityComponentDomain" order="5.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StatementTable" xlink:to="StatementEquityComponentsAxis" xlink:title="presentation: StatementTable to StatementEquityComponentsAxis" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="StatementClassOfStockAxis" xlink:title="StatementClassOfStockAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="ClassOfStockDomain" xlink:title="ClassOfStockDomain" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SeriesAPreferredStockMember" xlink:label="SeriesAPreferredStockMember" xlink:title="SeriesAPreferredStockMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ClassOfStockDomain" xlink:to="SeriesAPreferredStockMember" xlink:title="presentation: ClassOfStockDomain to SeriesAPreferredStockMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SeriesBPreferredStockMember" xlink:label="SeriesBPreferredStockMember" xlink:title="SeriesBPreferredStockMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ClassOfStockDomain" xlink:to="SeriesBPreferredStockMember" xlink:title="presentation: ClassOfStockDomain to SeriesBPreferredStockMember" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StatementClassOfStockAxis" xlink:to="ClassOfStockDomain" xlink:title="presentation: StatementClassOfStockAxis to ClassOfStockDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StatementTable" xlink:to="StatementClassOfStockAxis" xlink:title="presentation: StatementTable to StatementClassOfStockAxis" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SubsidiarySaleOfStockAxis" xlink:label="SubsidiarySaleOfStockAxis" xlink:title="SubsidiarySaleOfStockAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SaleOfStockNameOfTransactionDomain" xlink:label="SaleOfStockNameOfTransactionDomain" xlink:title="SaleOfStockNameOfTransactionDomain" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_EquityOfferingJune2020Member" xlink:label="EquityOfferingJune2020Member" xlink:title="EquityOfferingJune2020Member" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="SaleOfStockNameOfTransactionDomain" xlink:to="EquityOfferingJune2020Member" xlink:title="presentation: SaleOfStockNameOfTransactionDomain to EquityOfferingJune2020Member" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_EquityOfferingJuly2020Member" xlink:label="EquityOfferingJuly2020Member" xlink:title="EquityOfferingJuly2020Member" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="SaleOfStockNameOfTransactionDomain" xlink:to="EquityOfferingJuly2020Member" xlink:title="presentation: SaleOfStockNameOfTransactionDomain to EquityOfferingJuly2020Member" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="SubsidiarySaleOfStockAxis" xlink:to="SaleOfStockNameOfTransactionDomain" xlink:title="presentation: SubsidiarySaleOfStockAxis to SaleOfStockNameOfTransactionDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StatementTable" xlink:to="SubsidiarySaleOfStockAxis" xlink:title="presentation: StatementTable to SubsidiarySaleOfStockAxis" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementLineItems" xlink:label="StatementLineItems" xlink:title="StatementLineItems" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInStockholdersEquityRollForward" xlink:label="IncreaseDecreaseInStockholdersEquityRollForward" xlink:title="IncreaseDecreaseInStockholdersEquityRollForward" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockholdersEquity" xlink:label="StockholdersEquity" xlink:title="StockholdersEquity" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IncreaseDecreaseInStockholdersEquityRollForward" xlink:to="StockholdersEquity" xlink:title="presentation: IncreaseDecreaseInStockholdersEquityRollForward to StockholdersEquity" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SharesOutstanding" xlink:label="SharesOutstanding" xlink:title="SharesOutstanding" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IncreaseDecreaseInStockholdersEquityRollForward" xlink:to="SharesOutstanding" xlink:title="presentation: IncreaseDecreaseInStockholdersEquityRollForward to SharesOutstanding" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueNewIssues" xlink:label="StockIssuedDuringPeriodValueNewIssues" xlink:title="StockIssuedDuringPeriodValueNewIssues" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IncreaseDecreaseInStockholdersEquityRollForward" xlink:to="StockIssuedDuringPeriodValueNewIssues" xlink:title="presentation: IncreaseDecreaseInStockholdersEquityRollForward to StockIssuedDuringPeriodValueNewIssues" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesNewIssues" xlink:label="StockIssuedDuringPeriodSharesNewIssues" xlink:title="StockIssuedDuringPeriodSharesNewIssues" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IncreaseDecreaseInStockholdersEquityRollForward" xlink:to="StockIssuedDuringPeriodSharesNewIssues" xlink:title="presentation: IncreaseDecreaseInStockholdersEquityRollForward to StockIssuedDuringPeriodSharesNewIssues" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_StockIssuedDuringPeriodValuePreferredShareDividends" xlink:label="StockIssuedDuringPeriodValuePreferredShareDividends" xlink:title="StockIssuedDuringPeriodValuePreferredShareDividends" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IncreaseDecreaseInStockholdersEquityRollForward" xlink:to="StockIssuedDuringPeriodValuePreferredShareDividends" xlink:title="presentation: IncreaseDecreaseInStockholdersEquityRollForward to StockIssuedDuringPeriodValuePreferredShareDividends" order="4.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_StockIssuedDuringPeriodSharesPreferredShareDividends" xlink:label="StockIssuedDuringPeriodSharesPreferredShareDividends" xlink:title="StockIssuedDuringPeriodSharesPreferredShareDividends" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IncreaseDecreaseInStockholdersEquityRollForward" xlink:to="StockIssuedDuringPeriodSharesPreferredShareDividends" xlink:title="presentation: IncreaseDecreaseInStockholdersEquityRollForward to StockIssuedDuringPeriodSharesPreferredShareDividends" order="5.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_AdjustmentsToAdditionalPaidInCapitalDividendWaived" xlink:label="AdjustmentsToAdditionalPaidInCapitalDividendWaived" xlink:title="AdjustmentsToAdditionalPaidInCapitalDividendWaived" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IncreaseDecreaseInStockholdersEquityRollForward" xlink:to="AdjustmentsToAdditionalPaidInCapitalDividendWaived" xlink:title="presentation: IncreaseDecreaseInStockholdersEquityRollForward to AdjustmentsToAdditionalPaidInCapitalDividendWaived" order="6.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_StockDividendWaived" xlink:label="StockDividendWaived" xlink:title="StockDividendWaived" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IncreaseDecreaseInStockholdersEquityRollForward" xlink:to="StockDividendWaived" xlink:title="presentation: IncreaseDecreaseInStockholdersEquityRollForward to StockDividendWaived" order="7.0" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_AdjustmentsToAdditionalPaidInCapitalGainLossOnExtinguishmentOfPreferredShares" xlink:label="AdjustmentsToAdditionalPaidInCapitalGainLossOnExtinguishmentOfPreferredShares" xlink:title="AdjustmentsToAdditionalPaidInCapitalGainLossOnExtinguishmentOfPreferredShares" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IncreaseDecreaseInStockholdersEquityRollForward" xlink:to="AdjustmentsToAdditionalPaidInCapitalGainLossOnExtinguishmentOfPreferredShares" xlink:title="presentation: IncreaseDecreaseInStockholdersEquityRollForward to AdjustmentsToAdditionalPaidInCapitalGainLossOnExtinguishmentOfPreferredShares" order="8.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_AdjustmentsToAdditionalPaidInCapitalDeemedDividendPursuantToStockAmendmentAgreement" xlink:label="AdjustmentsToAdditionalPaidInCapitalDeemedDividendPursuantToStockAmendmentAgreement" xlink:title="AdjustmentsToAdditionalPaidInCapitalDeemedDividendPursuantToStockAmendmentAgreement" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IncreaseDecreaseInStockholdersEquityRollForward" xlink:to="AdjustmentsToAdditionalPaidInCapitalDeemedDividendPursuantToStockAmendmentAgreement" xlink:title="presentation: IncreaseDecreaseInStockholdersEquityRollForward to AdjustmentsToAdditionalPaidInCapitalDeemedDividendPursuantToStockAmendmentAgreement" order="9.0" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_AdjustmentsToAdditionalPaidInCapitalDeemedContributionPursuantToLoan" xlink:label="AdjustmentsToAdditionalPaidInCapitalDeemedContributionPursuantToLoan" xlink:title="AdjustmentsToAdditionalPaidInCapitalDeemedContributionPursuantToLoan" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IncreaseDecreaseInStockholdersEquityRollForward" xlink:to="AdjustmentsToAdditionalPaidInCapitalDeemedContributionPursuantToLoan" xlink:title="presentation: IncreaseDecreaseInStockholdersEquityRollForward to AdjustmentsToAdditionalPaidInCapitalDeemedContributionPursuantToLoan" order="10.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities" xlink:label="StockIssuedDuringPeriodValueConversionOfConvertibleSecurities" xlink:title="StockIssuedDuringPeriodValueConversionOfConvertibleSecurities" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IncreaseDecreaseInStockholdersEquityRollForward" xlink:to="StockIssuedDuringPeriodValueConversionOfConvertibleSecurities" xlink:title="presentation: IncreaseDecreaseInStockholdersEquityRollForward to StockIssuedDuringPeriodValueConversionOfConvertibleSecurities" order="11.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities" xlink:label="StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities" xlink:title="StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IncreaseDecreaseInStockholdersEquityRollForward" xlink:to="StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities" xlink:title="presentation: IncreaseDecreaseInStockholdersEquityRollForward to StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities" order="12.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_StockIssuedDuringPeriodValueNewIssuesRegisteredDirectOfferings" xlink:label="StockIssuedDuringPeriodValueNewIssuesRegisteredDirectOfferings" xlink:title="StockIssuedDuringPeriodValueNewIssuesRegisteredDirectOfferings" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IncreaseDecreaseInStockholdersEquityRollForward" xlink:to="StockIssuedDuringPeriodValueNewIssuesRegisteredDirectOfferings" xlink:title="presentation: IncreaseDecreaseInStockholdersEquityRollForward to StockIssuedDuringPeriodValueNewIssuesRegisteredDirectOfferings" order="13.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_StockIssuedDuringPeriodSharesNewIssuesRegisteredDirectOfferings" xlink:label="StockIssuedDuringPeriodSharesNewIssuesRegisteredDirectOfferings" xlink:title="StockIssuedDuringPeriodSharesNewIssuesRegisteredDirectOfferings" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IncreaseDecreaseInStockholdersEquityRollForward" xlink:to="StockIssuedDuringPeriodSharesNewIssuesRegisteredDirectOfferings" xlink:title="presentation: IncreaseDecreaseInStockholdersEquityRollForward to StockIssuedDuringPeriodSharesNewIssuesRegisteredDirectOfferings" order="14.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_StockIssuedDuringPeriodValueExerciseOfWarrants" xlink:label="StockIssuedDuringPeriodValueExerciseOfWarrants" xlink:title="StockIssuedDuringPeriodValueExerciseOfWarrants" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IncreaseDecreaseInStockholdersEquityRollForward" xlink:to="StockIssuedDuringPeriodValueExerciseOfWarrants" xlink:title="presentation: IncreaseDecreaseInStockholdersEquityRollForward to StockIssuedDuringPeriodValueExerciseOfWarrants" order="15.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_StockIssuedDuringPeriodSharesExerciseOfWarrants" xlink:label="StockIssuedDuringPeriodSharesExerciseOfWarrants" xlink:title="StockIssuedDuringPeriodSharesExerciseOfWarrants" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IncreaseDecreaseInStockholdersEquityRollForward" xlink:to="StockIssuedDuringPeriodSharesExerciseOfWarrants" xlink:title="presentation: IncreaseDecreaseInStockholdersEquityRollForward to StockIssuedDuringPeriodSharesExerciseOfWarrants" order="16.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt" xlink:label="AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt" xlink:title="AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IncreaseDecreaseInStockholdersEquityRollForward" xlink:to="AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt" xlink:title="presentation: IncreaseDecreaseInStockholdersEquityRollForward to AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt" order="17.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_StockIssuedDuringPeriodValueNewIssuesAtTheMarketOffering" xlink:label="StockIssuedDuringPeriodValueNewIssuesAtTheMarketOffering" xlink:title="StockIssuedDuringPeriodValueNewIssuesAtTheMarketOffering" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IncreaseDecreaseInStockholdersEquityRollForward" xlink:to="StockIssuedDuringPeriodValueNewIssuesAtTheMarketOffering" xlink:title="presentation: IncreaseDecreaseInStockholdersEquityRollForward to StockIssuedDuringPeriodValueNewIssuesAtTheMarketOffering" order="18.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_StockIssuedDuringPeriodSharesNewIssuesAtTheMarketOffering" xlink:label="StockIssuedDuringPeriodSharesNewIssuesAtTheMarketOffering" xlink:title="StockIssuedDuringPeriodSharesNewIssuesAtTheMarketOffering" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IncreaseDecreaseInStockholdersEquityRollForward" xlink:to="StockIssuedDuringPeriodSharesNewIssuesAtTheMarketOffering" xlink:title="presentation: IncreaseDecreaseInStockholdersEquityRollForward to StockIssuedDuringPeriodSharesNewIssuesAtTheMarketOffering" order="19.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockRedeemedOrCalledDuringPeriodValue" xlink:label="StockRedeemedOrCalledDuringPeriodValue" xlink:title="StockRedeemedOrCalledDuringPeriodValue" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IncreaseDecreaseInStockholdersEquityRollForward" xlink:to="StockRedeemedOrCalledDuringPeriodValue" xlink:title="presentation: IncreaseDecreaseInStockholdersEquityRollForward to StockRedeemedOrCalledDuringPeriodValue" order="20.0" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockRedeemedOrCalledDuringPeriodShares" xlink:label="StockRedeemedOrCalledDuringPeriodShares" xlink:title="StockRedeemedOrCalledDuringPeriodShares" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IncreaseDecreaseInStockholdersEquityRollForward" xlink:to="StockRedeemedOrCalledDuringPeriodShares" xlink:title="presentation: IncreaseDecreaseInStockholdersEquityRollForward to StockRedeemedOrCalledDuringPeriodShares" order="21.0" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="NetIncomeLoss" xlink:title="NetIncomeLoss" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IncreaseDecreaseInStockholdersEquityRollForward" xlink:to="NetIncomeLoss" xlink:title="presentation: IncreaseDecreaseInStockholdersEquityRollForward to NetIncomeLoss" order="22.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockholdersEquity" xlink:label="StockholdersEquity_2" xlink:title="StockholdersEquity" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IncreaseDecreaseInStockholdersEquityRollForward" xlink:to="StockholdersEquity_2" xlink:title="presentation: IncreaseDecreaseInStockholdersEquityRollForward to StockholdersEquity" order="23.0" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SharesOutstanding" xlink:label="SharesOutstanding_2" xlink:title="SharesOutstanding" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IncreaseDecreaseInStockholdersEquityRollForward" xlink:to="SharesOutstanding_2" xlink:title="presentation: IncreaseDecreaseInStockholdersEquityRollForward to SharesOutstanding" order="24.0" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StatementLineItems" xlink:to="IncreaseDecreaseInStockholdersEquityRollForward" xlink:title="presentation: StatementLineItems to IncreaseDecreaseInStockholdersEquityRollForward" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StatementTable" xlink:to="StatementLineItems" xlink:title="presentation: StatementTable to StatementLineItems" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StatementOfStockholdersEquityAbstract" xlink:to="StatementTable" xlink:title="presentation: StatementOfStockholdersEquityAbstract to StatementTable" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/ConsolidatedStatementsOfShareholdersEquityParenthetical">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementOfStockholdersEquityAbstract" xlink:label="StatementOfStockholdersEquityAbstract" xlink:title="StatementOfStockholdersEquityAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementTable" xlink:label="StatementTable" xlink:title="StatementTable" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentAxis" xlink:label="DebtInstrumentAxis" xlink:title="DebtInstrumentAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentNameDomain" xlink:label="DebtInstrumentNameDomain" xlink:title="DebtInstrumentNameDomain" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_BridgeLoan75MillionMember" xlink:label="BridgeLoan75MillionMember" xlink:title="BridgeLoan75MillionMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentNameDomain" xlink:to="BridgeLoan75MillionMember" xlink:title="presentation: DebtInstrumentNameDomain to BridgeLoan75MillionMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_ConvertibleDebenturesMember" xlink:label="ConvertibleDebenturesMember" xlink:title="ConvertibleDebenturesMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentNameDomain" xlink:to="ConvertibleDebenturesMember" xlink:title="presentation: DebtInstrumentNameDomain to ConvertibleDebenturesMember" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentAxis" xlink:to="DebtInstrumentNameDomain" xlink:title="presentation: DebtInstrumentAxis to DebtInstrumentNameDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StatementTable" xlink:to="DebtInstrumentAxis" xlink:title="presentation: StatementTable to DebtInstrumentAxis" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementLineItems" xlink:label="StatementLineItems" xlink:title="StatementLineItems" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInStockholdersEquityRollForward" xlink:label="IncreaseDecreaseInStockholdersEquityRollForward" xlink:title="IncreaseDecreaseInStockholdersEquityRollForward" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentFaceAmount" xlink:label="DebtInstrumentFaceAmount" xlink:title="DebtInstrumentFaceAmount" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IncreaseDecreaseInStockholdersEquityRollForward" xlink:to="DebtInstrumentFaceAmount" xlink:title="presentation: IncreaseDecreaseInStockholdersEquityRollForward to DebtInstrumentFaceAmount" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StatementLineItems" xlink:to="IncreaseDecreaseInStockholdersEquityRollForward" xlink:title="presentation: StatementLineItems to IncreaseDecreaseInStockholdersEquityRollForward" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StatementTable" xlink:to="StatementLineItems" xlink:title="presentation: StatementTable to StatementLineItems" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StatementOfStockholdersEquityAbstract" xlink:to="StatementTable" xlink:title="presentation: StatementOfStockholdersEquityAbstract to StatementTable" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/ConsolidatedStatementsOfCashFlows">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementOfCashFlowsAbstract" xlink:label="StatementOfCashFlowsAbstract" xlink:title="StatementOfCashFlowsAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:label="NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:title="NetCashProvidedByUsedInOperatingActivitiesAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="NetIncomeLoss" xlink:title="NetIncomeLoss" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="NetIncomeLoss" xlink:title="presentation: NetCashProvidedByUsedInOperatingActivitiesAbstract to NetIncomeLoss" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:label="AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:title="AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_DepreciationAndAmortizationOfDeferredDryDockingCosts" xlink:label="DepreciationAndAmortizationOfDeferredDryDockingCosts" xlink:title="DepreciationAndAmortizationOfDeferredDryDockingCosts" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="DepreciationAndAmortizationOfDeferredDryDockingCosts" xlink:title="presentation: AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract to DepreciationAndAmortizationOfDeferredDryDockingCosts" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_AmortizationAndWriteOffOfDeferredDebtIssuanceCosts" xlink:label="AmortizationAndWriteOffOfDeferredDebtIssuanceCosts" xlink:title="AmortizationAndWriteOffOfDeferredDebtIssuanceCosts" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="AmortizationAndWriteOffOfDeferredDebtIssuanceCosts" xlink:title="presentation: AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract to AmortizationAndWriteOffOfDeferredDebtIssuanceCosts" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherAmortizationOfDeferredCharges" xlink:label="OtherAmortizationOfDeferredCharges" xlink:title="OtherAmortizationOfDeferredCharges" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="OtherAmortizationOfDeferredCharges" xlink:title="presentation: AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract to OtherAmortizationOfDeferredCharges" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ContractWithCustomerLiabilityRevenueRecognized" xlink:label="ContractWithCustomerLiabilityRevenueRecognized" xlink:title="ContractWithCustomerLiabilityRevenueRecognized" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="ContractWithCustomerLiabilityRevenueRecognized" xlink:title="presentation: AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract to ContractWithCustomerLiabilityRevenueRecognized" order="3.0" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AmortizationOfAboveAndBelowMarketLeases" xlink:label="AmortizationOfAboveAndBelowMarketLeases" xlink:title="AmortizationOfAboveAndBelowMarketLeases" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="AmortizationOfAboveAndBelowMarketLeases" xlink:title="presentation: AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract to AmortizationOfAboveAndBelowMarketLeases" order="4.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PaidInKindInterest" xlink:label="PaidInKindInterest" xlink:title="PaidInKindInterest" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="PaidInKindInterest" xlink:title="presentation: AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract to PaidInKindInterest" order="5.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_AmortizationAndWriteOffOfConvertibleNotesBeneficialConversionFeature" xlink:label="AmortizationAndWriteOffOfConvertibleNotesBeneficialConversionFeature" xlink:title="AmortizationAndWriteOffOfConvertibleNotesBeneficialConversionFeature" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="AmortizationAndWriteOffOfConvertibleNotesBeneficialConversionFeature" xlink:title="presentation: AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract to AmortizationAndWriteOffOfConvertibleNotesBeneficialConversionFeature" order="6.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProvisionForDoubtfulAccounts" xlink:label="ProvisionForDoubtfulAccounts" xlink:title="ProvisionForDoubtfulAccounts" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="ProvisionForDoubtfulAccounts" xlink:title="presentation: AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract to ProvisionForDoubtfulAccounts" order="7.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_ShareholdersDeemedInterestContribution" xlink:label="ShareholdersDeemedInterestContribution" xlink:title="ShareholdersDeemedInterestContribution" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="ShareholdersDeemedInterestContribution" xlink:title="presentation: AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract to ShareholdersDeemedInterestContribution" order="8.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:label="IncreaseDecreaseInOperatingCapitalAbstract" xlink:title="IncreaseDecreaseInOperatingCapitalAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsReceivable" xlink:label="IncreaseDecreaseInAccountsReceivable" xlink:title="IncreaseDecreaseInAccountsReceivable" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IncreaseDecreaseInOperatingCapitalAbstract" xlink:to="IncreaseDecreaseInAccountsReceivable" xlink:title="presentation: IncreaseDecreaseInOperatingCapitalAbstract to IncreaseDecreaseInAccountsReceivable" order="0.0" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInInventories" xlink:label="IncreaseDecreaseInInventories" xlink:title="IncreaseDecreaseInInventories" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IncreaseDecreaseInOperatingCapitalAbstract" xlink:to="IncreaseDecreaseInInventories" xlink:title="presentation: IncreaseDecreaseInOperatingCapitalAbstract to IncreaseDecreaseInInventories" order="1.0" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInDueFromRelatedParties" xlink:label="IncreaseDecreaseInDueFromRelatedParties" xlink:title="IncreaseDecreaseInDueFromRelatedParties" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IncreaseDecreaseInOperatingCapitalAbstract" xlink:to="IncreaseDecreaseInDueFromRelatedParties" xlink:title="presentation: IncreaseDecreaseInOperatingCapitalAbstract to IncreaseDecreaseInDueFromRelatedParties" order="2.0" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" xlink:label="IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" xlink:title="IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IncreaseDecreaseInOperatingCapitalAbstract" xlink:to="IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" xlink:title="presentation: IncreaseDecreaseInOperatingCapitalAbstract to IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" order="3.0" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInDeferredCharges" xlink:label="IncreaseDecreaseInDeferredCharges" xlink:title="IncreaseDecreaseInDeferredCharges" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IncreaseDecreaseInOperatingCapitalAbstract" xlink:to="IncreaseDecreaseInDeferredCharges" xlink:title="presentation: IncreaseDecreaseInOperatingCapitalAbstract to IncreaseDecreaseInDeferredCharges" order="4.0" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_IncreaseDecreaseInOtherDeferredCharges" xlink:label="IncreaseDecreaseInOtherDeferredCharges" xlink:title="IncreaseDecreaseInOtherDeferredCharges" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IncreaseDecreaseInOperatingCapitalAbstract" xlink:to="IncreaseDecreaseInOtherDeferredCharges" xlink:title="presentation: IncreaseDecreaseInOperatingCapitalAbstract to IncreaseDecreaseInOtherDeferredCharges" order="5.0" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsPayable" xlink:label="IncreaseDecreaseInAccountsPayable" xlink:title="IncreaseDecreaseInAccountsPayable" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IncreaseDecreaseInOperatingCapitalAbstract" xlink:to="IncreaseDecreaseInAccountsPayable" xlink:title="presentation: IncreaseDecreaseInOperatingCapitalAbstract to IncreaseDecreaseInAccountsPayable" order="6.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInAccruedLiabilities" xlink:label="IncreaseDecreaseInAccruedLiabilities" xlink:title="IncreaseDecreaseInAccruedLiabilities" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IncreaseDecreaseInOperatingCapitalAbstract" xlink:to="IncreaseDecreaseInAccruedLiabilities" xlink:title="presentation: IncreaseDecreaseInOperatingCapitalAbstract to IncreaseDecreaseInAccruedLiabilities" order="7.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInDeferredRevenue" xlink:label="IncreaseDecreaseInDeferredRevenue" xlink:title="IncreaseDecreaseInDeferredRevenue" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IncreaseDecreaseInOperatingCapitalAbstract" xlink:to="IncreaseDecreaseInDeferredRevenue" xlink:title="presentation: IncreaseDecreaseInOperatingCapitalAbstract to IncreaseDecreaseInDeferredRevenue" order="8.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="IncreaseDecreaseInOperatingCapitalAbstract" xlink:title="presentation: AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract to IncreaseDecreaseInOperatingCapitalAbstract" order="9.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:title="presentation: NetCashProvidedByUsedInOperatingActivitiesAbstract to AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:label="NetCashProvidedByUsedInOperatingActivities" xlink:title="NetCashProvidedByUsedInOperatingActivities" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="NetCashProvidedByUsedInOperatingActivities" xlink:title="presentation: NetCashProvidedByUsedInOperatingActivitiesAbstract to NetCashProvidedByUsedInOperatingActivities" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StatementOfCashFlowsAbstract" xlink:to="NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:title="presentation: StatementOfCashFlowsAbstract to NetCashProvidedByUsedInOperatingActivitiesAbstract" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:label="NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:title="NetCashProvidedByUsedInInvestingActivitiesAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:label="PaymentsToAcquirePropertyPlantAndEquipment" xlink:title="PaymentsToAcquirePropertyPlantAndEquipment" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:to="PaymentsToAcquirePropertyPlantAndEquipment" xlink:title="presentation: NetCashProvidedByUsedInInvestingActivitiesAbstract to PaymentsToAcquirePropertyPlantAndEquipment" order="0.0" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_PaymentsOfAdvancesForVesselAcquisitions" xlink:label="PaymentsOfAdvancesForVesselAcquisitions" xlink:title="PaymentsOfAdvancesForVesselAcquisitions" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:to="PaymentsOfAdvancesForVesselAcquisitions" xlink:title="presentation: NetCashProvidedByUsedInInvestingActivitiesAbstract to PaymentsOfAdvancesForVesselAcquisitions" order="1.0" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:label="NetCashProvidedByUsedInInvestingActivities" xlink:title="NetCashProvidedByUsedInInvestingActivities" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:to="NetCashProvidedByUsedInInvestingActivities" xlink:title="presentation: NetCashProvidedByUsedInInvestingActivitiesAbstract to NetCashProvidedByUsedInInvestingActivities" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StatementOfCashFlowsAbstract" xlink:to="NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:title="presentation: StatementOfCashFlowsAbstract to NetCashProvidedByUsedInInvestingActivitiesAbstract" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:label="NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:title="NetCashProvidedByUsedInFinancingActivitiesAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProceedsFromIssuanceOrSaleOfEquity" xlink:label="ProceedsFromIssuanceOrSaleOfEquity" xlink:title="ProceedsFromIssuanceOrSaleOfEquity" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:to="ProceedsFromIssuanceOrSaleOfEquity" xlink:title="presentation: NetCashProvidedByUsedInFinancingActivitiesAbstract to ProceedsFromIssuanceOrSaleOfEquity" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PaymentsOfStockIssuanceCosts" xlink:label="PaymentsOfStockIssuanceCosts" xlink:title="PaymentsOfStockIssuanceCosts" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:to="PaymentsOfStockIssuanceCosts" xlink:title="presentation: NetCashProvidedByUsedInFinancingActivitiesAbstract to PaymentsOfStockIssuanceCosts" order="1.0" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProceedsFromIssuanceOfDebt" xlink:label="ProceedsFromIssuanceOfDebt" xlink:title="ProceedsFromIssuanceOfDebt" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:to="ProceedsFromIssuanceOfDebt" xlink:title="presentation: NetCashProvidedByUsedInFinancingActivitiesAbstract to ProceedsFromIssuanceOfDebt" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PaymentsForRepurchaseOfRedeemablePreferredStock" xlink:label="PaymentsForRepurchaseOfRedeemablePreferredStock" xlink:title="PaymentsForRepurchaseOfRedeemablePreferredStock" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:to="PaymentsForRepurchaseOfRedeemablePreferredStock" xlink:title="presentation: NetCashProvidedByUsedInFinancingActivitiesAbstract to PaymentsForRepurchaseOfRedeemablePreferredStock" order="3.0" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RepaymentsOfSecuredDebt" xlink:label="RepaymentsOfSecuredDebt" xlink:title="RepaymentsOfSecuredDebt" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:to="RepaymentsOfSecuredDebt" xlink:title="presentation: NetCashProvidedByUsedInFinancingActivitiesAbstract to RepaymentsOfSecuredDebt" order="4.0" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProceedsFromRelatedPartyDebt" xlink:label="ProceedsFromRelatedPartyDebt" xlink:title="ProceedsFromRelatedPartyDebt" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:to="ProceedsFromRelatedPartyDebt" xlink:title="presentation: NetCashProvidedByUsedInFinancingActivitiesAbstract to ProceedsFromRelatedPartyDebt" order="5.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RepaymentsOfRelatedPartyDebt" xlink:label="RepaymentsOfRelatedPartyDebt" xlink:title="RepaymentsOfRelatedPartyDebt" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:to="RepaymentsOfRelatedPartyDebt" xlink:title="presentation: NetCashProvidedByUsedInFinancingActivitiesAbstract to RepaymentsOfRelatedPartyDebt" order="6.0" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PaymentsOfFinancingCosts" xlink:label="PaymentsOfFinancingCosts" xlink:title="PaymentsOfFinancingCosts" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:to="PaymentsOfFinancingCosts" xlink:title="presentation: NetCashProvidedByUsedInFinancingActivitiesAbstract to PaymentsOfFinancingCosts" order="7.0" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:label="NetCashProvidedByUsedInFinancingActivities" xlink:title="NetCashProvidedByUsedInFinancingActivities" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:to="NetCashProvidedByUsedInFinancingActivities" xlink:title="presentation: NetCashProvidedByUsedInFinancingActivitiesAbstract to NetCashProvidedByUsedInFinancingActivities" order="8.0" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StatementOfCashFlowsAbstract" xlink:to="NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:title="presentation: StatementOfCashFlowsAbstract to NetCashProvidedByUsedInFinancingActivitiesAbstract" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect" xlink:label="CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect" xlink:title="CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StatementOfCashFlowsAbstract" xlink:to="CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect" xlink:title="presentation: StatementOfCashFlowsAbstract to CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" xlink:label="CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" xlink:title="CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StatementOfCashFlowsAbstract" xlink:to="CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" xlink:title="presentation: StatementOfCashFlowsAbstract to CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" order="4.0" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" xlink:label="CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_2" xlink:title="CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StatementOfCashFlowsAbstract" xlink:to="CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_2" xlink:title="presentation: StatementOfCashFlowsAbstract to CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" order="5.0" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsAbstract" xlink:label="CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsAbstract" xlink:title="CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="CashAndCashEquivalentsAtCarryingValue" xlink:title="CashAndCashEquivalentsAtCarryingValue" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsAbstract" xlink:to="CashAndCashEquivalentsAtCarryingValue" xlink:title="presentation: CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsAbstract to CashAndCashEquivalentsAtCarryingValue" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RestrictedCashCurrent" xlink:label="RestrictedCashCurrent" xlink:title="RestrictedCashCurrent" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsAbstract" xlink:to="RestrictedCashCurrent" xlink:title="presentation: CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsAbstract to RestrictedCashCurrent" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RestrictedCashNoncurrent" xlink:label="RestrictedCashNoncurrent" xlink:title="RestrictedCashNoncurrent" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsAbstract" xlink:to="RestrictedCashNoncurrent" xlink:title="presentation: CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsAbstract to RestrictedCashNoncurrent" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsAbstract" xlink:to="CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" xlink:title="presentation: CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsAbstract to CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StatementOfCashFlowsAbstract" xlink:to="CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsAbstract" xlink:title="presentation: StatementOfCashFlowsAbstract to CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsAbstract" order="6.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SupplementalCashFlowInformationAbstract" xlink:label="SupplementalCashFlowInformationAbstract" xlink:title="SupplementalCashFlowInformationAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InterestPaidNet" xlink:label="InterestPaidNet" xlink:title="InterestPaidNet" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="SupplementalCashFlowInformationAbstract" xlink:to="InterestPaidNet" xlink:title="presentation: SupplementalCashFlowInformationAbstract to InterestPaidNet" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtConversionConvertedInstrumentAmount1" xlink:label="DebtConversionConvertedInstrumentAmount1" xlink:title="DebtConversionConvertedInstrumentAmount1" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="SupplementalCashFlowInformationAbstract" xlink:to="DebtConversionConvertedInstrumentAmount1" xlink:title="presentation: SupplementalCashFlowInformationAbstract to DebtConversionConvertedInstrumentAmount1" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_IssuanceOfCommonStockInConnectionWithPreferredSharesSettlementAgreement" xlink:label="IssuanceOfCommonStockInConnectionWithPreferredSharesSettlementAgreement" xlink:title="IssuanceOfCommonStockInConnectionWithPreferredSharesSettlementAgreement" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="SupplementalCashFlowInformationAbstract" xlink:to="IssuanceOfCommonStockInConnectionWithPreferredSharesSettlementAgreement" xlink:title="presentation: SupplementalCashFlowInformationAbstract to IssuanceOfCommonStockInConnectionWithPreferredSharesSettlementAgreement" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_DividendWaived" xlink:label="DividendWaived" xlink:title="DividendWaived" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="SupplementalCashFlowInformationAbstract" xlink:to="DividendWaived" xlink:title="presentation: SupplementalCashFlowInformationAbstract to DividendWaived" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_DeemedContributionPursuantToPreferredSharesAmendmentAgreementNetOfExpenses" xlink:label="DeemedContributionPursuantToPreferredSharesAmendmentAgreementNetOfExpenses" xlink:title="DeemedContributionPursuantToPreferredSharesAmendmentAgreementNetOfExpenses" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="SupplementalCashFlowInformationAbstract" xlink:to="DeemedContributionPursuantToPreferredSharesAmendmentAgreementNetOfExpenses" xlink:title="presentation: SupplementalCashFlowInformationAbstract to DeemedContributionPursuantToPreferredSharesAmendmentAgreementNetOfExpenses" order="4.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_DeemedContributionPursuantToBridgeLoan" xlink:label="DeemedContributionPursuantToBridgeLoan" xlink:title="DeemedContributionPursuantToBridgeLoan" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="SupplementalCashFlowInformationAbstract" xlink:to="DeemedContributionPursuantToBridgeLoan" xlink:title="presentation: SupplementalCashFlowInformationAbstract to DeemedContributionPursuantToBridgeLoan" order="5.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_StockIssuanceCostsIncurredButNotYetPaid" xlink:label="StockIssuanceCostsIncurredButNotYetPaid" xlink:title="StockIssuanceCostsIncurredButNotYetPaid" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="SupplementalCashFlowInformationAbstract" xlink:to="StockIssuanceCostsIncurredButNotYetPaid" xlink:title="presentation: SupplementalCashFlowInformationAbstract to StockIssuanceCostsIncurredButNotYetPaid" order="6.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CapitalExpendituresIncurredButNotYetPaid" xlink:label="CapitalExpendituresIncurredButNotYetPaid" xlink:title="CapitalExpendituresIncurredButNotYetPaid" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="SupplementalCashFlowInformationAbstract" xlink:to="CapitalExpendituresIncurredButNotYetPaid" xlink:title="presentation: SupplementalCashFlowInformationAbstract to CapitalExpendituresIncurredButNotYetPaid" order="7.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_UnpaidAdvancesForVesselAcquisitions" xlink:label="UnpaidAdvancesForVesselAcquisitions" xlink:title="UnpaidAdvancesForVesselAcquisitions" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="SupplementalCashFlowInformationAbstract" xlink:to="UnpaidAdvancesForVesselAcquisitions" xlink:title="presentation: SupplementalCashFlowInformationAbstract to UnpaidAdvancesForVesselAcquisitions" order="8.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_UnpaidDeferredDryDockCosts" xlink:label="UnpaidDeferredDryDockCosts" xlink:title="UnpaidDeferredDryDockCosts" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="SupplementalCashFlowInformationAbstract" xlink:to="UnpaidDeferredDryDockCosts" xlink:title="presentation: SupplementalCashFlowInformationAbstract to UnpaidDeferredDryDockCosts" order="9.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_UnpaidDeferredFinancingCosts" xlink:label="UnpaidDeferredFinancingCosts" xlink:title="UnpaidDeferredFinancingCosts" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="SupplementalCashFlowInformationAbstract" xlink:to="UnpaidDeferredFinancingCosts" xlink:title="presentation: SupplementalCashFlowInformationAbstract to UnpaidDeferredFinancingCosts" order="10.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StatementOfCashFlowsAbstract" xlink:to="SupplementalCashFlowInformationAbstract" xlink:title="presentation: StatementOfCashFlowsAbstract to SupplementalCashFlowInformationAbstract" order="7.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/ConsolidatedStatementsOfCashFlowsParenthetical">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementOfCashFlowsAbstract" xlink:label="StatementOfCashFlowsAbstract" xlink:title="StatementOfCashFlowsAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementTable" xlink:label="StatementTable" xlink:title="StatementTable" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentAxis" xlink:label="DebtInstrumentAxis" xlink:title="DebtInstrumentAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentNameDomain" xlink:label="DebtInstrumentNameDomain" xlink:title="DebtInstrumentNameDomain" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_ConvertibleDebenturesMember" xlink:label="ConvertibleDebenturesMember" xlink:title="ConvertibleDebenturesMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentNameDomain" xlink:to="ConvertibleDebenturesMember" xlink:title="presentation: DebtInstrumentNameDomain to ConvertibleDebenturesMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_BridgeLoan75MillionMember" xlink:label="BridgeLoan75MillionMember" xlink:title="BridgeLoan75MillionMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentNameDomain" xlink:to="BridgeLoan75MillionMember" xlink:title="presentation: DebtInstrumentNameDomain to BridgeLoan75MillionMember" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentAxis" xlink:to="DebtInstrumentNameDomain" xlink:title="presentation: DebtInstrumentAxis to DebtInstrumentNameDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StatementTable" xlink:to="DebtInstrumentAxis" xlink:title="presentation: StatementTable to DebtInstrumentAxis" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementLineItems" xlink:label="StatementLineItems" xlink:title="StatementLineItems" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SupplementalCashFlowInformationAbstract" xlink:label="SupplementalCashFlowInformationAbstract" xlink:title="SupplementalCashFlowInformationAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentFaceAmount" xlink:label="DebtInstrumentFaceAmount" xlink:title="DebtInstrumentFaceAmount" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="SupplementalCashFlowInformationAbstract" xlink:to="DebtInstrumentFaceAmount" xlink:title="presentation: SupplementalCashFlowInformationAbstract to DebtInstrumentFaceAmount" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StatementLineItems" xlink:to="SupplementalCashFlowInformationAbstract" xlink:title="presentation: StatementLineItems to SupplementalCashFlowInformationAbstract" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StatementTable" xlink:to="StatementLineItems" xlink:title="presentation: StatementTable to StatementLineItems" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StatementOfCashFlowsAbstract" xlink:to="StatementTable" xlink:title="presentation: StatementOfCashFlowsAbstract to StatementTable" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/BasisOfPresentationAndGeneralInformation">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:label="OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:title="OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock" xlink:label="OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock" xlink:title="OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:to="OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock" xlink:title="presentation: OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract to OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/SignificantAccountingPoliciesAndRecentAccountingPronouncements">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="AccountingPoliciesAbstract" xlink:title="AccountingPoliciesAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SignificantAccountingPoliciesTextBlock" xlink:label="SignificantAccountingPoliciesTextBlock" xlink:title="SignificantAccountingPoliciesTextBlock" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="AccountingPoliciesAbstract" xlink:to="SignificantAccountingPoliciesTextBlock" xlink:title="presentation: AccountingPoliciesAbstract to SignificantAccountingPoliciesTextBlock" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/TransactionsWithRelatedParties">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RelatedPartyTransactionsAbstract" xlink:label="RelatedPartyTransactionsAbstract" xlink:title="RelatedPartyTransactionsAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RelatedPartyTransactionsDisclosureTextBlock" xlink:label="RelatedPartyTransactionsDisclosureTextBlock" xlink:title="RelatedPartyTransactionsDisclosureTextBlock" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyTransactionsAbstract" xlink:to="RelatedPartyTransactionsDisclosureTextBlock" xlink:title="presentation: RelatedPartyTransactionsAbstract to RelatedPartyTransactionsDisclosureTextBlock" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/DeferredChargesNet">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredCostsCapitalizedPrepaidAndOtherAssetsDisclosureAbstract" xlink:label="DeferredCostsCapitalizedPrepaidAndOtherAssetsDisclosureAbstract" xlink:title="DeferredCostsCapitalizedPrepaidAndOtherAssetsDisclosureAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherAssetsDisclosureTextBlock" xlink:label="OtherAssetsDisclosureTextBlock" xlink:title="OtherAssetsDisclosureTextBlock" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DeferredCostsCapitalizedPrepaidAndOtherAssetsDisclosureAbstract" xlink:to="OtherAssetsDisclosureTextBlock" xlink:title="presentation: DeferredCostsCapitalizedPrepaidAndOtherAssetsDisclosureAbstract to OtherAssetsDisclosureTextBlock" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/FairValueOfAcquiredTimeCharter">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherLiabilitiesDisclosureAbstract" xlink:label="OtherLiabilitiesDisclosureAbstract" xlink:title="OtherLiabilitiesDisclosureAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherLiabilitiesDisclosureTextBlock" xlink:label="OtherLiabilitiesDisclosureTextBlock" xlink:title="OtherLiabilitiesDisclosureTextBlock" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="OtherLiabilitiesDisclosureAbstract" xlink:to="OtherLiabilitiesDisclosureTextBlock" xlink:title="presentation: OtherLiabilitiesDisclosureAbstract to OtherLiabilitiesDisclosureTextBlock" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/VesselsNetAdvancesForVesselAcquisition">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentAbstract" xlink:label="PropertyPlantAndEquipmentAbstract" xlink:title="PropertyPlantAndEquipmentAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock" xlink:label="PropertyPlantAndEquipmentDisclosureTextBlock" xlink:title="PropertyPlantAndEquipmentDisclosureTextBlock" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentAbstract" xlink:to="PropertyPlantAndEquipmentDisclosureTextBlock" xlink:title="presentation: PropertyPlantAndEquipmentAbstract to PropertyPlantAndEquipmentDisclosureTextBlock" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/LongtermDebt">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtDisclosureAbstract" xlink:label="DebtDisclosureAbstract" xlink:title="DebtDisclosureAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LongTermDebtTextBlock" xlink:label="LongTermDebtTextBlock" xlink:title="LongTermDebtTextBlock" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtDisclosureAbstract" xlink:to="LongTermDebtTextBlock" xlink:title="presentation: DebtDisclosureAbstract to LongTermDebtTextBlock" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/EquityCapitalStructure">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EquityAbstract" xlink:label="EquityAbstract" xlink:title="EquityAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockholdersEquityNoteDisclosureTextBlock" xlink:label="StockholdersEquityNoteDisclosureTextBlock" xlink:title="StockholdersEquityNoteDisclosureTextBlock" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="EquityAbstract" xlink:to="StockholdersEquityNoteDisclosureTextBlock" xlink:title="presentation: EquityAbstract to StockholdersEquityNoteDisclosureTextBlock" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/FinancialInstrumentsAndFairValueDisclosures">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FairValueDisclosuresAbstract" xlink:label="FairValueDisclosuresAbstract" xlink:title="FairValueDisclosuresAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FairValueDisclosuresTextBlock" xlink:label="FairValueDisclosuresTextBlock" xlink:title="FairValueDisclosuresTextBlock" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="FairValueDisclosuresAbstract" xlink:to="FairValueDisclosuresTextBlock" xlink:title="presentation: FairValueDisclosuresAbstract to FairValueDisclosuresTextBlock" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/CommitmentsAndContingencies">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CommitmentsAndContingenciesDisclosureAbstract" xlink:label="CommitmentsAndContingenciesDisclosureAbstract" xlink:title="CommitmentsAndContingenciesDisclosureAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CommitmentsAndContingenciesDisclosureTextBlock" xlink:label="CommitmentsAndContingenciesDisclosureTextBlock" xlink:title="CommitmentsAndContingenciesDisclosureTextBlock" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="CommitmentsAndContingenciesDisclosureAbstract" xlink:to="CommitmentsAndContingenciesDisclosureTextBlock" xlink:title="presentation: CommitmentsAndContingenciesDisclosureAbstract to CommitmentsAndContingenciesDisclosureTextBlock" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/EarningsLossPerShare">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EarningsPerShareAbstract" xlink:label="EarningsPerShareAbstract" xlink:title="EarningsPerShareAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EarningsPerShareTextBlock" xlink:label="EarningsPerShareTextBlock" xlink:title="EarningsPerShareTextBlock" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="EarningsPerShareAbstract" xlink:to="EarningsPerShareTextBlock" xlink:title="presentation: EarningsPerShareAbstract to EarningsPerShareTextBlock" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/VesselRevenues">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RevenueFromContractWithCustomerAbstract" xlink:label="RevenueFromContractWithCustomerAbstract" xlink:title="RevenueFromContractWithCustomerAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RevenueFromContractWithCustomerTextBlock" xlink:label="RevenueFromContractWithCustomerTextBlock" xlink:title="RevenueFromContractWithCustomerTextBlock" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RevenueFromContractWithCustomerAbstract" xlink:to="RevenueFromContractWithCustomerTextBlock" xlink:title="presentation: RevenueFromContractWithCustomerAbstract to RevenueFromContractWithCustomerTextBlock" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/VesselOperatingAndVoyageExpenses">
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_VesselOperatingAndVoyageExpensesAbstract" xlink:label="VesselOperatingAndVoyageExpensesAbstract" xlink:title="VesselOperatingAndVoyageExpensesAbstract" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_VesselOperatingAndVoyageExpensesTextBlock" xlink:label="VesselOperatingAndVoyageExpensesTextBlock" xlink:title="VesselOperatingAndVoyageExpensesTextBlock" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="VesselOperatingAndVoyageExpensesAbstract" xlink:to="VesselOperatingAndVoyageExpensesTextBlock" xlink:title="presentation: VesselOperatingAndVoyageExpensesAbstract to VesselOperatingAndVoyageExpensesTextBlock" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/GeneralAndAdministrativeExpenses">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_GeneralAndAdministrativeExpenseAbstract" xlink:label="GeneralAndAdministrativeExpenseAbstract" xlink:title="GeneralAndAdministrativeExpenseAbstract" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_GeneralAndAdministrativeExpensesTextBlock" xlink:label="GeneralAndAdministrativeExpensesTextBlock" xlink:title="GeneralAndAdministrativeExpensesTextBlock" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="GeneralAndAdministrativeExpenseAbstract" xlink:to="GeneralAndAdministrativeExpensesTextBlock" xlink:title="presentation: GeneralAndAdministrativeExpenseAbstract to GeneralAndAdministrativeExpensesTextBlock" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/InterestAndFinanceCosts">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InterestAndDebtExpenseAbstract" xlink:label="InterestAndDebtExpenseAbstract" xlink:title="InterestAndDebtExpenseAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherNonoperatingIncomeAndExpenseTextBlock" xlink:label="OtherNonoperatingIncomeAndExpenseTextBlock" xlink:title="OtherNonoperatingIncomeAndExpenseTextBlock" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="InterestAndDebtExpenseAbstract" xlink:to="OtherNonoperatingIncomeAndExpenseTextBlock" xlink:title="presentation: InterestAndDebtExpenseAbstract to OtherNonoperatingIncomeAndExpenseTextBlock" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/IncomeTaxes">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeTaxDisclosureAbstract" xlink:label="IncomeTaxDisclosureAbstract" xlink:title="IncomeTaxDisclosureAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeTaxDisclosureTextBlock" xlink:label="IncomeTaxDisclosureTextBlock" xlink:title="IncomeTaxDisclosureTextBlock" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IncomeTaxDisclosureAbstract" xlink:to="IncomeTaxDisclosureTextBlock" xlink:title="presentation: IncomeTaxDisclosureAbstract to IncomeTaxDisclosureTextBlock" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/SegmentInformation">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SegmentReportingAbstract" xlink:label="SegmentReportingAbstract" xlink:title="SegmentReportingAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SegmentReportingDisclosureTextBlock" xlink:label="SegmentReportingDisclosureTextBlock" xlink:title="SegmentReportingDisclosureTextBlock" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="SegmentReportingAbstract" xlink:to="SegmentReportingDisclosureTextBlock" xlink:title="presentation: SegmentReportingAbstract to SegmentReportingDisclosureTextBlock" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/SubsequentEvents">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SubsequentEventsAbstract" xlink:label="SubsequentEventsAbstract" xlink:title="SubsequentEventsAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SubsequentEventsTextBlock" xlink:label="SubsequentEventsTextBlock" xlink:title="SubsequentEventsTextBlock" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="SubsequentEventsAbstract" xlink:to="SubsequentEventsTextBlock" xlink:title="presentation: SubsequentEventsAbstract to SubsequentEventsTextBlock" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/SignificantAccountingPoliciesAndRecentAccountingPronouncementsPolicies">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="AccountingPoliciesAbstract" xlink:title="AccountingPoliciesAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ConsolidationPolicyTextBlock" xlink:label="ConsolidationPolicyTextBlock" xlink:title="ConsolidationPolicyTextBlock" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="AccountingPoliciesAbstract" xlink:to="ConsolidationPolicyTextBlock" xlink:title="presentation: AccountingPoliciesAbstract to ConsolidationPolicyTextBlock" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_UseOfEstimates" xlink:label="UseOfEstimates" xlink:title="UseOfEstimates" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="AccountingPoliciesAbstract" xlink:to="UseOfEstimates" xlink:title="presentation: AccountingPoliciesAbstract to UseOfEstimates" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SegmentReportingPolicyPolicyTextBlock" xlink:label="SegmentReportingPolicyPolicyTextBlock" xlink:title="SegmentReportingPolicyPolicyTextBlock" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="AccountingPoliciesAbstract" xlink:to="SegmentReportingPolicyPolicyTextBlock" xlink:title="presentation: AccountingPoliciesAbstract to SegmentReportingPolicyPolicyTextBlock" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ComprehensiveIncomePolicyPolicyTextBlock" xlink:label="ComprehensiveIncomePolicyPolicyTextBlock" xlink:title="ComprehensiveIncomePolicyPolicyTextBlock" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="AccountingPoliciesAbstract" xlink:to="ComprehensiveIncomePolicyPolicyTextBlock" xlink:title="presentation: AccountingPoliciesAbstract to ComprehensiveIncomePolicyPolicyTextBlock" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ForeignCurrencyTransactionsAndTranslationsPolicyTextBlock" xlink:label="ForeignCurrencyTransactionsAndTranslationsPolicyTextBlock" xlink:title="ForeignCurrencyTransactionsAndTranslationsPolicyTextBlock" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="AccountingPoliciesAbstract" xlink:to="ForeignCurrencyTransactionsAndTranslationsPolicyTextBlock" xlink:title="presentation: AccountingPoliciesAbstract to ForeignCurrencyTransactionsAndTranslationsPolicyTextBlock" order="4.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CashAndCashEquivalentsPolicyTextBlock" xlink:label="CashAndCashEquivalentsPolicyTextBlock" xlink:title="CashAndCashEquivalentsPolicyTextBlock" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="AccountingPoliciesAbstract" xlink:to="CashAndCashEquivalentsPolicyTextBlock" xlink:title="presentation: AccountingPoliciesAbstract to CashAndCashEquivalentsPolicyTextBlock" order="5.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CashAndCashEquivalentsRestrictedCashAndCashEquivalentsPolicy" xlink:label="CashAndCashEquivalentsRestrictedCashAndCashEquivalentsPolicy" xlink:title="CashAndCashEquivalentsRestrictedCashAndCashEquivalentsPolicy" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="AccountingPoliciesAbstract" xlink:to="CashAndCashEquivalentsRestrictedCashAndCashEquivalentsPolicy" xlink:title="presentation: AccountingPoliciesAbstract to CashAndCashEquivalentsRestrictedCashAndCashEquivalentsPolicy" order="6.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_TradeAndOtherAccountsReceivablePolicy" xlink:label="TradeAndOtherAccountsReceivablePolicy" xlink:title="TradeAndOtherAccountsReceivablePolicy" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="AccountingPoliciesAbstract" xlink:to="TradeAndOtherAccountsReceivablePolicy" xlink:title="presentation: AccountingPoliciesAbstract to TradeAndOtherAccountsReceivablePolicy" order="7.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InventoryPolicyTextBlock" xlink:label="InventoryPolicyTextBlock" xlink:title="InventoryPolicyTextBlock" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="AccountingPoliciesAbstract" xlink:to="InventoryPolicyTextBlock" xlink:title="presentation: AccountingPoliciesAbstract to InventoryPolicyTextBlock" order="8.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_IntangibleAssetsLiabilitiesRelatedToTimeChartersAcquiredPolicyTextBlock" xlink:label="IntangibleAssetsLiabilitiesRelatedToTimeChartersAcquiredPolicyTextBlock" xlink:title="IntangibleAssetsLiabilitiesRelatedToTimeChartersAcquiredPolicyTextBlock" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="AccountingPoliciesAbstract" xlink:to="IntangibleAssetsLiabilitiesRelatedToTimeChartersAcquiredPolicyTextBlock" xlink:title="presentation: AccountingPoliciesAbstract to IntangibleAssetsLiabilitiesRelatedToTimeChartersAcquiredPolicyTextBlock" order="9.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_InsuranceClaimsPolicyPolicyTextBlock" xlink:label="InsuranceClaimsPolicyPolicyTextBlock" xlink:title="InsuranceClaimsPolicyPolicyTextBlock" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="AccountingPoliciesAbstract" xlink:to="InsuranceClaimsPolicyPolicyTextBlock" xlink:title="presentation: AccountingPoliciesAbstract to InsuranceClaimsPolicyPolicyTextBlock" order="10.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentPolicyTextBlock" xlink:label="PropertyPlantAndEquipmentPolicyTextBlock" xlink:title="PropertyPlantAndEquipmentPolicyTextBlock" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="AccountingPoliciesAbstract" xlink:to="PropertyPlantAndEquipmentPolicyTextBlock" xlink:title="presentation: AccountingPoliciesAbstract to PropertyPlantAndEquipmentPolicyTextBlock" order="11.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DepreciationDepletionAndAmortizationPolicyTextBlock" xlink:label="DepreciationDepletionAndAmortizationPolicyTextBlock" xlink:title="DepreciationDepletionAndAmortizationPolicyTextBlock" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="AccountingPoliciesAbstract" xlink:to="DepreciationDepletionAndAmortizationPolicyTextBlock" xlink:title="presentation: AccountingPoliciesAbstract to DepreciationDepletionAndAmortizationPolicyTextBlock" order="12.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ImpairmentOrDisposalOfLongLivedAssetsPolicyTextBlock" xlink:label="ImpairmentOrDisposalOfLongLivedAssetsPolicyTextBlock" xlink:title="ImpairmentOrDisposalOfLongLivedAssetsPolicyTextBlock" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="AccountingPoliciesAbstract" xlink:to="ImpairmentOrDisposalOfLongLivedAssetsPolicyTextBlock" xlink:title="presentation: AccountingPoliciesAbstract to ImpairmentOrDisposalOfLongLivedAssetsPolicyTextBlock" order="13.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredChargesPolicyTextBlock" xlink:label="DeferredChargesPolicyTextBlock" xlink:title="DeferredChargesPolicyTextBlock" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="AccountingPoliciesAbstract" xlink:to="DeferredChargesPolicyTextBlock" xlink:title="presentation: AccountingPoliciesAbstract to DeferredChargesPolicyTextBlock" order="14.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LessorLeasesPolicyTextBlock" xlink:label="LessorLeasesPolicyTextBlock" xlink:title="LessorLeasesPolicyTextBlock" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="AccountingPoliciesAbstract" xlink:to="LessorLeasesPolicyTextBlock" xlink:title="presentation: AccountingPoliciesAbstract to LessorLeasesPolicyTextBlock" order="15.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RevenueFromContractWithCustomerPolicyTextBlock" xlink:label="RevenueFromContractWithCustomerPolicyTextBlock" xlink:title="RevenueFromContractWithCustomerPolicyTextBlock" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="AccountingPoliciesAbstract" xlink:to="RevenueFromContractWithCustomerPolicyTextBlock" xlink:title="presentation: AccountingPoliciesAbstract to RevenueFromContractWithCustomerPolicyTextBlock" order="16.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_VoyageExpensesPolicyTextBlock" xlink:label="VoyageExpensesPolicyTextBlock" xlink:title="VoyageExpensesPolicyTextBlock" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="AccountingPoliciesAbstract" xlink:to="VoyageExpensesPolicyTextBlock" xlink:title="presentation: AccountingPoliciesAbstract to VoyageExpensesPolicyTextBlock" order="17.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FairValueOfFinancialInstrumentsPolicy" xlink:label="FairValueOfFinancialInstrumentsPolicy" xlink:title="FairValueOfFinancialInstrumentsPolicy" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="AccountingPoliciesAbstract" xlink:to="FairValueOfFinancialInstrumentsPolicy" xlink:title="presentation: AccountingPoliciesAbstract to FairValueOfFinancialInstrumentsPolicy" order="18.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_ConvertibleDebtAndAssociatedBeneficialConversionFeaturesPolicyTextBlock" xlink:label="ConvertibleDebtAndAssociatedBeneficialConversionFeaturesPolicyTextBlock" xlink:title="ConvertibleDebtAndAssociatedBeneficialConversionFeaturesPolicyTextBlock" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="AccountingPoliciesAbstract" xlink:to="ConvertibleDebtAndAssociatedBeneficialConversionFeaturesPolicyTextBlock" xlink:title="presentation: AccountingPoliciesAbstract to ConvertibleDebtAndAssociatedBeneficialConversionFeaturesPolicyTextBlock" order="19.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FairValueMeasurementPolicyPolicyTextBlock" xlink:label="FairValueMeasurementPolicyPolicyTextBlock" xlink:title="FairValueMeasurementPolicyPolicyTextBlock" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="AccountingPoliciesAbstract" xlink:to="FairValueMeasurementPolicyPolicyTextBlock" xlink:title="presentation: AccountingPoliciesAbstract to FairValueMeasurementPolicyPolicyTextBlock" order="20.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_MaintenanceCostPolicyPolicyTextBlock" xlink:label="MaintenanceCostPolicyPolicyTextBlock" xlink:title="MaintenanceCostPolicyPolicyTextBlock" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="AccountingPoliciesAbstract" xlink:to="MaintenanceCostPolicyPolicyTextBlock" xlink:title="presentation: AccountingPoliciesAbstract to MaintenanceCostPolicyPolicyTextBlock" order="21.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InterestExpensePolicyTextBlock" xlink:label="InterestExpensePolicyTextBlock" xlink:title="InterestExpensePolicyTextBlock" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="AccountingPoliciesAbstract" xlink:to="InterestExpensePolicyTextBlock" xlink:title="presentation: AccountingPoliciesAbstract to InterestExpensePolicyTextBlock" order="22.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_OfferingCostsPolicyTextBlock" xlink:label="OfferingCostsPolicyTextBlock" xlink:title="OfferingCostsPolicyTextBlock" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="AccountingPoliciesAbstract" xlink:to="OfferingCostsPolicyTextBlock" xlink:title="presentation: AccountingPoliciesAbstract to OfferingCostsPolicyTextBlock" order="23.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EarningsPerSharePolicyTextBlock" xlink:label="EarningsPerSharePolicyTextBlock" xlink:title="EarningsPerSharePolicyTextBlock" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="AccountingPoliciesAbstract" xlink:to="EarningsPerSharePolicyTextBlock" xlink:title="presentation: AccountingPoliciesAbstract to EarningsPerSharePolicyTextBlock" order="24.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CommitmentsAndContingenciesPolicyTextBlock" xlink:label="CommitmentsAndContingenciesPolicyTextBlock" xlink:title="CommitmentsAndContingenciesPolicyTextBlock" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="AccountingPoliciesAbstract" xlink:to="CommitmentsAndContingenciesPolicyTextBlock" xlink:title="presentation: AccountingPoliciesAbstract to CommitmentsAndContingenciesPolicyTextBlock" order="25.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock" xlink:label="NewAccountingPronouncementsPolicyPolicyTextBlock" xlink:title="NewAccountingPronouncementsPolicyPolicyTextBlock" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="AccountingPoliciesAbstract" xlink:to="NewAccountingPronouncementsPolicyPolicyTextBlock" xlink:title="presentation: AccountingPoliciesAbstract to NewAccountingPronouncementsPolicyPolicyTextBlock" order="26.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/BasisOfPresentationAndGeneralInformationTables">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:label="OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:title="OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_VesselOwningSubsidiariesTableTextBlock" xlink:label="VesselOwningSubsidiariesTableTextBlock" xlink:title="VesselOwningSubsidiariesTableTextBlock" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:to="VesselOwningSubsidiariesTableTextBlock" xlink:title="presentation: OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract to VesselOwningSubsidiariesTableTextBlock" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_SubsidiariesFormedToAcquireVesselsTableTextBlock" xlink:label="SubsidiariesFormedToAcquireVesselsTableTextBlock" xlink:title="SubsidiariesFormedToAcquireVesselsTableTextBlock" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:to="SubsidiariesFormedToAcquireVesselsTableTextBlock" xlink:title="presentation: OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract to SubsidiariesFormedToAcquireVesselsTableTextBlock" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_NonVesselOwningSubsidiariesTableTextBlock" xlink:label="NonVesselOwningSubsidiariesTableTextBlock" xlink:title="NonVesselOwningSubsidiariesTableTextBlock" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:to="NonVesselOwningSubsidiariesTableTextBlock" xlink:title="presentation: OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract to NonVesselOwningSubsidiariesTableTextBlock" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfRevenueByMajorCustomersByReportingSegmentsTableTextBlock" xlink:label="ScheduleOfRevenueByMajorCustomersByReportingSegmentsTableTextBlock" xlink:title="ScheduleOfRevenueByMajorCustomersByReportingSegmentsTableTextBlock" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:to="ScheduleOfRevenueByMajorCustomersByReportingSegmentsTableTextBlock" xlink:title="presentation: OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract to ScheduleOfRevenueByMajorCustomersByReportingSegmentsTableTextBlock" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/TransactionsWithRelatedPartiesTables">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RelatedPartyTransactionsAbstract" xlink:label="RelatedPartyTransactionsAbstract" xlink:title="RelatedPartyTransactionsAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfRelatedPartyTransactionsTableTextBlock" xlink:label="ScheduleOfRelatedPartyTransactionsTableTextBlock" xlink:title="ScheduleOfRelatedPartyTransactionsTableTextBlock" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyTransactionsAbstract" xlink:to="ScheduleOfRelatedPartyTransactionsTableTextBlock" xlink:title="presentation: RelatedPartyTransactionsAbstract to ScheduleOfRelatedPartyTransactionsTableTextBlock" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/DeferredChargesNetTables">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredCostsCapitalizedPrepaidAndOtherAssetsDisclosureAbstract" xlink:label="DeferredCostsCapitalizedPrepaidAndOtherAssetsDisclosureAbstract" xlink:title="DeferredCostsCapitalizedPrepaidAndOtherAssetsDisclosureAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredCostsCapitalizedPrepaidAndOtherAssetsDisclosureTextBlock" xlink:label="DeferredCostsCapitalizedPrepaidAndOtherAssetsDisclosureTextBlock" xlink:title="DeferredCostsCapitalizedPrepaidAndOtherAssetsDisclosureTextBlock" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DeferredCostsCapitalizedPrepaidAndOtherAssetsDisclosureAbstract" xlink:to="DeferredCostsCapitalizedPrepaidAndOtherAssetsDisclosureTextBlock" xlink:title="presentation: DeferredCostsCapitalizedPrepaidAndOtherAssetsDisclosureAbstract to DeferredCostsCapitalizedPrepaidAndOtherAssetsDisclosureTextBlock" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/VesselsNetAdvancesForVesselAcquisitionTables">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentAbstract" xlink:label="PropertyPlantAndEquipmentAbstract" xlink:title="PropertyPlantAndEquipmentAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTextBlock" xlink:label="PropertyPlantAndEquipmentTextBlock" xlink:title="PropertyPlantAndEquipmentTextBlock" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentAbstract" xlink:to="PropertyPlantAndEquipmentTextBlock" xlink:title="presentation: PropertyPlantAndEquipmentAbstract to PropertyPlantAndEquipmentTextBlock" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/LongtermDebtTables">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtDisclosureAbstract" xlink:label="DebtDisclosureAbstract" xlink:title="DebtDisclosureAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfDebtTableTextBlock" xlink:label="ScheduleOfDebtTableTextBlock" xlink:title="ScheduleOfDebtTableTextBlock" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtDisclosureAbstract" xlink:to="ScheduleOfDebtTableTextBlock" xlink:title="presentation: DebtDisclosureAbstract to ScheduleOfDebtTableTextBlock" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfMaturitiesOfLongTermDebtTableTextBlock" xlink:label="ScheduleOfMaturitiesOfLongTermDebtTableTextBlock" xlink:title="ScheduleOfMaturitiesOfLongTermDebtTableTextBlock" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtDisclosureAbstract" xlink:to="ScheduleOfMaturitiesOfLongTermDebtTableTextBlock" xlink:title="presentation: DebtDisclosureAbstract to ScheduleOfMaturitiesOfLongTermDebtTableTextBlock" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/CommitmentsAndContingenciesTables">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CommitmentsAndContingenciesDisclosureAbstract" xlink:label="CommitmentsAndContingenciesDisclosureAbstract" xlink:title="CommitmentsAndContingenciesDisclosureAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LessorOperatingLeasePaymentsToBeReceivedMaturityTableTextBlock" xlink:label="LessorOperatingLeasePaymentsToBeReceivedMaturityTableTextBlock" xlink:title="LessorOperatingLeasePaymentsToBeReceivedMaturityTableTextBlock" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="CommitmentsAndContingenciesDisclosureAbstract" xlink:to="LessorOperatingLeasePaymentsToBeReceivedMaturityTableTextBlock" xlink:title="presentation: CommitmentsAndContingenciesDisclosureAbstract to LessorOperatingLeasePaymentsToBeReceivedMaturityTableTextBlock" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/EarningsLossPerShareTables">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EarningsPerShareAbstract" xlink:label="EarningsPerShareAbstract" xlink:title="EarningsPerShareAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock" xlink:label="ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock" xlink:title="ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="EarningsPerShareAbstract" xlink:to="ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock" xlink:title="presentation: EarningsPerShareAbstract to ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/VesselRevenuesTables">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RevenueFromContractWithCustomerAbstract" xlink:label="RevenueFromContractWithCustomerAbstract" xlink:title="RevenueFromContractWithCustomerAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DisaggregationOfRevenueTableTextBlock" xlink:label="DisaggregationOfRevenueTableTextBlock" xlink:title="DisaggregationOfRevenueTableTextBlock" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RevenueFromContractWithCustomerAbstract" xlink:to="DisaggregationOfRevenueTableTextBlock" xlink:title="presentation: RevenueFromContractWithCustomerAbstract to DisaggregationOfRevenueTableTextBlock" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/VesselOperatingAndVoyageExpensesTables">
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_VesselOperatingAndVoyageExpensesAbstract" xlink:label="VesselOperatingAndVoyageExpensesAbstract" xlink:title="VesselOperatingAndVoyageExpensesAbstract" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_VesselOperatingExpensesTableTextBlock" xlink:label="VesselOperatingExpensesTableTextBlock" xlink:title="VesselOperatingExpensesTableTextBlock" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="VesselOperatingAndVoyageExpensesAbstract" xlink:to="VesselOperatingExpensesTableTextBlock" xlink:title="presentation: VesselOperatingAndVoyageExpensesAbstract to VesselOperatingExpensesTableTextBlock" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_VoyageExpensesTableTextBlock" xlink:label="VoyageExpensesTableTextBlock" xlink:title="VoyageExpensesTableTextBlock" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="VesselOperatingAndVoyageExpensesAbstract" xlink:to="VoyageExpensesTableTextBlock" xlink:title="presentation: VesselOperatingAndVoyageExpensesAbstract to VoyageExpensesTableTextBlock" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/GeneralAndAdministrativeExpensesTables">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_GeneralAndAdministrativeExpenseAbstract" xlink:label="GeneralAndAdministrativeExpenseAbstract" xlink:title="GeneralAndAdministrativeExpenseAbstract" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_GeneralAndAdministrativeExpensesTableTextBlock" xlink:label="GeneralAndAdministrativeExpensesTableTextBlock" xlink:title="GeneralAndAdministrativeExpensesTableTextBlock" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="GeneralAndAdministrativeExpenseAbstract" xlink:to="GeneralAndAdministrativeExpensesTableTextBlock" xlink:title="presentation: GeneralAndAdministrativeExpenseAbstract to GeneralAndAdministrativeExpensesTableTextBlock" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/InterestAndFinanceCostsTables">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InterestAndDebtExpenseAbstract" xlink:label="InterestAndDebtExpenseAbstract" xlink:title="InterestAndDebtExpenseAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfOtherNonoperatingIncomeExpenseTableTextBlock" xlink:label="ScheduleOfOtherNonoperatingIncomeExpenseTableTextBlock" xlink:title="ScheduleOfOtherNonoperatingIncomeExpenseTableTextBlock" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="InterestAndDebtExpenseAbstract" xlink:to="ScheduleOfOtherNonoperatingIncomeExpenseTableTextBlock" xlink:title="presentation: InterestAndDebtExpenseAbstract to ScheduleOfOtherNonoperatingIncomeExpenseTableTextBlock" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/SegmentInformationTables">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SegmentReportingAbstract" xlink:label="SegmentReportingAbstract" xlink:title="SegmentReportingAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfSegmentReportingInformationBySegmentTextBlock" xlink:label="ScheduleOfSegmentReportingInformationBySegmentTextBlock" xlink:title="ScheduleOfSegmentReportingInformationBySegmentTextBlock" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="SegmentReportingAbstract" xlink:to="ScheduleOfSegmentReportingInformationBySegmentTextBlock" xlink:title="presentation: SegmentReportingAbstract to ScheduleOfSegmentReportingInformationBySegmentTextBlock" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ReconciliationOfAssetsFromSegmentToConsolidatedTextBlock" xlink:label="ReconciliationOfAssetsFromSegmentToConsolidatedTextBlock" xlink:title="ReconciliationOfAssetsFromSegmentToConsolidatedTextBlock" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="SegmentReportingAbstract" xlink:to="ReconciliationOfAssetsFromSegmentToConsolidatedTextBlock" xlink:title="presentation: SegmentReportingAbstract to ReconciliationOfAssetsFromSegmentToConsolidatedTextBlock" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/BasisOfPresentationAndGeneralInformationGeneralInformationDetails">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:label="OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:title="OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_OrganizationTable" xlink:label="OrganizationTable" xlink:title="OrganizationTable" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_LegalEntityAxis" xlink:label="LegalEntityAxis" xlink:title="LegalEntityAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityDomain" xlink:label="EntityDomain" xlink:title="EntityDomain" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_ThalassaInvestmentCoSAMember" xlink:label="ThalassaInvestmentCoSAMember" xlink:title="ThalassaInvestmentCoSAMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="EntityDomain" xlink:to="ThalassaInvestmentCoSAMember" xlink:title="presentation: EntityDomain to ThalassaInvestmentCoSAMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="LegalEntityAxis" xlink:to="EntityDomain" xlink:title="presentation: LegalEntityAxis to EntityDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="OrganizationTable" xlink:to="LegalEntityAxis" xlink:title="presentation: OrganizationTable to LegalEntityAxis" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="StatementClassOfStockAxis" xlink:title="StatementClassOfStockAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="ClassOfStockDomain" xlink:title="ClassOfStockDomain" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SeriesBPreferredStockMember" xlink:label="SeriesBPreferredStockMember" xlink:title="SeriesBPreferredStockMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ClassOfStockDomain" xlink:to="SeriesBPreferredStockMember" xlink:title="presentation: ClassOfStockDomain to SeriesBPreferredStockMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StatementClassOfStockAxis" xlink:to="ClassOfStockDomain" xlink:title="presentation: StatementClassOfStockAxis to ClassOfStockDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="OrganizationTable" xlink:to="StatementClassOfStockAxis" xlink:title="presentation: OrganizationTable to StatementClassOfStockAxis" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:label="PropertyPlantAndEquipmentByTypeAxis" xlink:title="PropertyPlantAndEquipmentByTypeAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:label="PropertyPlantAndEquipmentTypeDomain" xlink:title="PropertyPlantAndEquipmentTypeDomain" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_CapesizeVesselMember" xlink:label="CapesizeVesselMember" xlink:title="CapesizeVesselMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentTypeDomain" xlink:to="CapesizeVesselMember" xlink:title="presentation: PropertyPlantAndEquipmentTypeDomain to CapesizeVesselMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_KamsarmaxVesselMember" xlink:label="KamsarmaxVesselMember" xlink:title="KamsarmaxVesselMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentTypeDomain" xlink:to="KamsarmaxVesselMember" xlink:title="presentation: PropertyPlantAndEquipmentTypeDomain to KamsarmaxVesselMember" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_PanamaxVesselMember" xlink:label="PanamaxVesselMember" xlink:title="PanamaxVesselMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentTypeDomain" xlink:to="PanamaxVesselMember" xlink:title="presentation: PropertyPlantAndEquipmentTypeDomain to PanamaxVesselMember" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_AframaxMember" xlink:label="AframaxMember" xlink:title="AframaxMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentTypeDomain" xlink:to="AframaxMember" xlink:title="presentation: PropertyPlantAndEquipmentTypeDomain to AframaxMember" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_AframaxLR2TankerMember" xlink:label="AframaxLR2TankerMember" xlink:title="AframaxLR2TankerMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentTypeDomain" xlink:to="AframaxLR2TankerMember" xlink:title="presentation: PropertyPlantAndEquipmentTypeDomain to AframaxLR2TankerMember" order="4.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_MR1Member" xlink:label="MR1Member" xlink:title="MR1Member" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentTypeDomain" xlink:to="MR1Member" xlink:title="presentation: PropertyPlantAndEquipmentTypeDomain to MR1Member" order="5.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentByTypeAxis" xlink:to="PropertyPlantAndEquipmentTypeDomain" xlink:title="presentation: PropertyPlantAndEquipmentByTypeAxis to PropertyPlantAndEquipmentTypeDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="OrganizationTable" xlink:to="PropertyPlantAndEquipmentByTypeAxis" xlink:title="presentation: OrganizationTable to PropertyPlantAndEquipmentByTypeAxis" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_OrganizationLineItems" xlink:label="OrganizationLineItems" xlink:title="OrganizationLineItems" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_BasisOfPresentationAndOrganizationAbstract" xlink:label="BasisOfPresentationAndOrganizationAbstract" xlink:title="BasisOfPresentationAndOrganizationAbstract" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_PercentageOfSharesHeld" xlink:label="PercentageOfSharesHeld" xlink:title="PercentageOfSharesHeld" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="BasisOfPresentationAndOrganizationAbstract" xlink:to="PercentageOfSharesHeld" xlink:title="presentation: BasisOfPresentationAndOrganizationAbstract to PercentageOfSharesHeld" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_NumberOfVessels" xlink:label="NumberOfVessels" xlink:title="NumberOfVessels" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="BasisOfPresentationAndOrganizationAbstract" xlink:to="NumberOfVessels" xlink:title="presentation: BasisOfPresentationAndOrganizationAbstract to NumberOfVessels" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_VesselDeadWeightTonnage" xlink:label="VesselDeadWeightTonnage" xlink:title="VesselDeadWeightTonnage" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="BasisOfPresentationAndOrganizationAbstract" xlink:to="VesselDeadWeightTonnage" xlink:title="presentation: BasisOfPresentationAndOrganizationAbstract to VesselDeadWeightTonnage" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="OrganizationLineItems" xlink:to="BasisOfPresentationAndOrganizationAbstract" xlink:title="presentation: OrganizationLineItems to BasisOfPresentationAndOrganizationAbstract" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="OrganizationTable" xlink:to="OrganizationLineItems" xlink:title="presentation: OrganizationTable to OrganizationLineItems" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:to="OrganizationTable" xlink:title="presentation: OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract to OrganizationTable" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/BasisOfPresentationAndGeneralInformationVesselOwningSubsidiariesDetails">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:label="OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:title="OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_OrganizationTable" xlink:label="OrganizationTable" xlink:title="OrganizationTable" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_ConsolidatedEntitiesAxis" xlink:label="ConsolidatedEntitiesAxis" xlink:title="ConsolidatedEntitiesAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_ConsolidatedEntitiesDomain" xlink:label="ConsolidatedEntitiesDomain" xlink:title="ConsolidatedEntitiesDomain" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_SpetsesShippingCoMember" xlink:label="SpetsesShippingCoMember" xlink:title="SpetsesShippingCoMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ConsolidatedEntitiesDomain" xlink:to="SpetsesShippingCoMember" xlink:title="presentation: ConsolidatedEntitiesDomain to SpetsesShippingCoMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_BistroMaritimeCoMember" xlink:label="BistroMaritimeCoMember" xlink:title="BistroMaritimeCoMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ConsolidatedEntitiesDomain" xlink:to="BistroMaritimeCoMember" xlink:title="presentation: ConsolidatedEntitiesDomain to BistroMaritimeCoMember" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_PikachuShippingCoMember" xlink:label="PikachuShippingCoMember" xlink:title="PikachuShippingCoMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ConsolidatedEntitiesDomain" xlink:to="PikachuShippingCoMember" xlink:title="presentation: ConsolidatedEntitiesDomain to PikachuShippingCoMember" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_BagheeraShippingCoMember" xlink:label="BagheeraShippingCoMember" xlink:title="BagheeraShippingCoMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ConsolidatedEntitiesDomain" xlink:to="BagheeraShippingCoMember" xlink:title="presentation: ConsolidatedEntitiesDomain to BagheeraShippingCoMember" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_PocahontasShippingCoMember" xlink:label="PocahontasShippingCoMember" xlink:title="PocahontasShippingCoMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ConsolidatedEntitiesDomain" xlink:to="PocahontasShippingCoMember" xlink:title="presentation: ConsolidatedEntitiesDomain to PocahontasShippingCoMember" order="4.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_JumaruShippingCoMember" xlink:label="JumaruShippingCoMember" xlink:title="JumaruShippingCoMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ConsolidatedEntitiesDomain" xlink:to="JumaruShippingCoMember" xlink:title="presentation: ConsolidatedEntitiesDomain to JumaruShippingCoMember" order="5.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_SuperMarioShippingCoMember" xlink:label="SuperMarioShippingCoMember" xlink:title="SuperMarioShippingCoMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ConsolidatedEntitiesDomain" xlink:to="SuperMarioShippingCoMember" xlink:title="presentation: ConsolidatedEntitiesDomain to SuperMarioShippingCoMember" order="6.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_PumbaShippingCoMember" xlink:label="PumbaShippingCoMember" xlink:title="PumbaShippingCoMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ConsolidatedEntitiesDomain" xlink:to="PumbaShippingCoMember" xlink:title="presentation: ConsolidatedEntitiesDomain to PumbaShippingCoMember" order="7.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_KabamaruShippingCoMember" xlink:label="KabamaruShippingCoMember" xlink:title="KabamaruShippingCoMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ConsolidatedEntitiesDomain" xlink:to="KabamaruShippingCoMember" xlink:title="presentation: ConsolidatedEntitiesDomain to KabamaruShippingCoMember" order="8.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_LuffyShippingCoMember" xlink:label="LuffyShippingCoMember" xlink:title="LuffyShippingCoMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ConsolidatedEntitiesDomain" xlink:to="LuffyShippingCoMember" xlink:title="presentation: ConsolidatedEntitiesDomain to LuffyShippingCoMember" order="9.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_LionoShippingCoMember" xlink:label="LionoShippingCoMember" xlink:title="LionoShippingCoMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ConsolidatedEntitiesDomain" xlink:to="LionoShippingCoMember" xlink:title="presentation: ConsolidatedEntitiesDomain to LionoShippingCoMember" order="10.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_StewieShippingCoMember" xlink:label="StewieShippingCoMember" xlink:title="StewieShippingCoMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ConsolidatedEntitiesDomain" xlink:to="StewieShippingCoMember" xlink:title="presentation: ConsolidatedEntitiesDomain to StewieShippingCoMember" order="11.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_SnoopyShippingCoMember" xlink:label="SnoopyShippingCoMember" xlink:title="SnoopyShippingCoMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ConsolidatedEntitiesDomain" xlink:to="SnoopyShippingCoMember" xlink:title="presentation: ConsolidatedEntitiesDomain to SnoopyShippingCoMember" order="12.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_MulanShippingCoMember" xlink:label="MulanShippingCoMember" xlink:title="MulanShippingCoMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ConsolidatedEntitiesDomain" xlink:to="MulanShippingCoMember" xlink:title="presentation: ConsolidatedEntitiesDomain to MulanShippingCoMember" order="13.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_CinderellaShippingCoMember" xlink:label="CinderellaShippingCoMember" xlink:title="CinderellaShippingCoMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ConsolidatedEntitiesDomain" xlink:to="CinderellaShippingCoMember" xlink:title="presentation: ConsolidatedEntitiesDomain to CinderellaShippingCoMember" order="14.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_RocketShippingCoMember" xlink:label="RocketShippingCoMember" xlink:title="RocketShippingCoMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ConsolidatedEntitiesDomain" xlink:to="RocketShippingCoMember" xlink:title="presentation: ConsolidatedEntitiesDomain to RocketShippingCoMember" order="15.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_GamoraShippingCoMember" xlink:label="GamoraShippingCoMember" xlink:title="GamoraShippingCoMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ConsolidatedEntitiesDomain" xlink:to="GamoraShippingCoMember" xlink:title="presentation: ConsolidatedEntitiesDomain to GamoraShippingCoMember" order="16.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_StarlordShippingCoMember" xlink:label="StarlordShippingCoMember" xlink:title="StarlordShippingCoMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ConsolidatedEntitiesDomain" xlink:to="StarlordShippingCoMember" xlink:title="presentation: ConsolidatedEntitiesDomain to StarlordShippingCoMember" order="17.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_HawkeyeShippingCoMember" xlink:label="HawkeyeShippingCoMember" xlink:title="HawkeyeShippingCoMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ConsolidatedEntitiesDomain" xlink:to="HawkeyeShippingCoMember" xlink:title="presentation: ConsolidatedEntitiesDomain to HawkeyeShippingCoMember" order="18.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_ElektraShippingCoMember" xlink:label="ElektraShippingCoMember" xlink:title="ElektraShippingCoMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ConsolidatedEntitiesDomain" xlink:to="ElektraShippingCoMember" xlink:title="presentation: ConsolidatedEntitiesDomain to ElektraShippingCoMember" order="19.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_ColossusShippingCoMember" xlink:label="ColossusShippingCoMember" xlink:title="ColossusShippingCoMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ConsolidatedEntitiesDomain" xlink:to="ColossusShippingCoMember" xlink:title="presentation: ConsolidatedEntitiesDomain to ColossusShippingCoMember" order="20.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_VisionShippingCoMember" xlink:label="VisionShippingCoMember" xlink:title="VisionShippingCoMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ConsolidatedEntitiesDomain" xlink:to="VisionShippingCoMember" xlink:title="presentation: ConsolidatedEntitiesDomain to VisionShippingCoMember" order="21.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_XavierShippingCoMember" xlink:label="XavierShippingCoMember" xlink:title="XavierShippingCoMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ConsolidatedEntitiesDomain" xlink:to="XavierShippingCoMember" xlink:title="presentation: ConsolidatedEntitiesDomain to XavierShippingCoMember" order="22.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_SongokuShippingCoMember" xlink:label="SongokuShippingCoMember" xlink:title="SongokuShippingCoMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ConsolidatedEntitiesDomain" xlink:to="SongokuShippingCoMember" xlink:title="presentation: ConsolidatedEntitiesDomain to SongokuShippingCoMember" order="23.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_AsterixShippingCoMember" xlink:label="AsterixShippingCoMember" xlink:title="AsterixShippingCoMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ConsolidatedEntitiesDomain" xlink:to="AsterixShippingCoMember" xlink:title="presentation: ConsolidatedEntitiesDomain to AsterixShippingCoMember" order="24.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_JohnnyBravoShippingCoMember" xlink:label="JohnnyBravoShippingCoMember" xlink:title="JohnnyBravoShippingCoMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ConsolidatedEntitiesDomain" xlink:to="JohnnyBravoShippingCoMember" xlink:title="presentation: ConsolidatedEntitiesDomain to JohnnyBravoShippingCoMember" order="25.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_GarfieldShippingCoMember" xlink:label="GarfieldShippingCoMember" xlink:title="GarfieldShippingCoMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ConsolidatedEntitiesDomain" xlink:to="GarfieldShippingCoMember" xlink:title="presentation: ConsolidatedEntitiesDomain to GarfieldShippingCoMember" order="26.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_DraxShippingCoMember" xlink:label="DraxShippingCoMember" xlink:title="DraxShippingCoMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ConsolidatedEntitiesDomain" xlink:to="DraxShippingCoMember" xlink:title="presentation: ConsolidatedEntitiesDomain to DraxShippingCoMember" order="27.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_MickeyShippingCoMember" xlink:label="MickeyShippingCoMember" xlink:title="MickeyShippingCoMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ConsolidatedEntitiesDomain" xlink:to="MickeyShippingCoMember" xlink:title="presentation: ConsolidatedEntitiesDomain to MickeyShippingCoMember" order="28.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_CastorMaritimeSCRCorpMember" xlink:label="CastorMaritimeSCRCorpMember" xlink:title="CastorMaritimeSCRCorpMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ConsolidatedEntitiesDomain" xlink:to="CastorMaritimeSCRCorpMember" xlink:title="presentation: ConsolidatedEntitiesDomain to CastorMaritimeSCRCorpMember" order="29.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ConsolidatedEntitiesAxis" xlink:to="ConsolidatedEntitiesDomain" xlink:title="presentation: ConsolidatedEntitiesAxis to ConsolidatedEntitiesDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="OrganizationTable" xlink:to="ConsolidatedEntitiesAxis" xlink:title="presentation: OrganizationTable to ConsolidatedEntitiesAxis" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:label="PropertyPlantAndEquipmentByTypeAxis" xlink:title="PropertyPlantAndEquipmentByTypeAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:label="PropertyPlantAndEquipmentTypeDomain" xlink:title="PropertyPlantAndEquipmentTypeDomain" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_MagicPMember" xlink:label="MagicPMember" xlink:title="MagicPMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentTypeDomain" xlink:to="MagicPMember" xlink:title="presentation: PropertyPlantAndEquipmentTypeDomain to MagicPMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_MagicSunMember" xlink:label="MagicSunMember" xlink:title="MagicSunMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentTypeDomain" xlink:to="MagicSunMember" xlink:title="presentation: PropertyPlantAndEquipmentTypeDomain to MagicSunMember" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_MagicMoonMember" xlink:label="MagicMoonMember" xlink:title="MagicMoonMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentTypeDomain" xlink:to="MagicMoonMember" xlink:title="presentation: PropertyPlantAndEquipmentTypeDomain to MagicMoonMember" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_MagicRainbowMember" xlink:label="MagicRainbowMember" xlink:title="MagicRainbowMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentTypeDomain" xlink:to="MagicRainbowMember" xlink:title="presentation: PropertyPlantAndEquipmentTypeDomain to MagicRainbowMember" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_MagicHorizonMember" xlink:label="MagicHorizonMember" xlink:title="MagicHorizonMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentTypeDomain" xlink:to="MagicHorizonMember" xlink:title="presentation: PropertyPlantAndEquipmentTypeDomain to MagicHorizonMember" order="4.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_MagicNovaMember" xlink:label="MagicNovaMember" xlink:title="MagicNovaMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentTypeDomain" xlink:to="MagicNovaMember" xlink:title="presentation: PropertyPlantAndEquipmentTypeDomain to MagicNovaMember" order="5.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_MagicVenusMember" xlink:label="MagicVenusMember" xlink:title="MagicVenusMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentTypeDomain" xlink:to="MagicVenusMember" xlink:title="presentation: PropertyPlantAndEquipmentTypeDomain to MagicVenusMember" order="6.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_MagicOrionMember" xlink:label="MagicOrionMember" xlink:title="MagicOrionMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentTypeDomain" xlink:to="MagicOrionMember" xlink:title="presentation: PropertyPlantAndEquipmentTypeDomain to MagicOrionMember" order="7.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_MagicArgoMember" xlink:label="MagicArgoMember" xlink:title="MagicArgoMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentTypeDomain" xlink:to="MagicArgoMember" xlink:title="presentation: PropertyPlantAndEquipmentTypeDomain to MagicArgoMember" order="8.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_MagicTwilightMember" xlink:label="MagicTwilightMember" xlink:title="MagicTwilightMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentTypeDomain" xlink:to="MagicTwilightMember" xlink:title="presentation: PropertyPlantAndEquipmentTypeDomain to MagicTwilightMember" order="9.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_MagicThunderMember" xlink:label="MagicThunderMember" xlink:title="MagicThunderMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentTypeDomain" xlink:to="MagicThunderMember" xlink:title="presentation: PropertyPlantAndEquipmentTypeDomain to MagicThunderMember" order="10.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_MagicVelaMember" xlink:label="MagicVelaMember" xlink:title="MagicVelaMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentTypeDomain" xlink:to="MagicVelaMember" xlink:title="presentation: PropertyPlantAndEquipmentTypeDomain to MagicVelaMember" order="11.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_MagicNebulaMember" xlink:label="MagicNebulaMember" xlink:title="MagicNebulaMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentTypeDomain" xlink:to="MagicNebulaMember" xlink:title="presentation: PropertyPlantAndEquipmentTypeDomain to MagicNebulaMember" order="12.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_MagicStarlightMember" xlink:label="MagicStarlightMember" xlink:title="MagicStarlightMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentTypeDomain" xlink:to="MagicStarlightMember" xlink:title="presentation: PropertyPlantAndEquipmentTypeDomain to MagicStarlightMember" order="13.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_MagicEclipseMember" xlink:label="MagicEclipseMember" xlink:title="MagicEclipseMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentTypeDomain" xlink:to="MagicEclipseMember" xlink:title="presentation: PropertyPlantAndEquipmentTypeDomain to MagicEclipseMember" order="14.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_WonderPolarisMember" xlink:label="WonderPolarisMember" xlink:title="WonderPolarisMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentTypeDomain" xlink:to="WonderPolarisMember" xlink:title="presentation: PropertyPlantAndEquipmentTypeDomain to WonderPolarisMember" order="15.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_WonderSiriusMember" xlink:label="WonderSiriusMember" xlink:title="WonderSiriusMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentTypeDomain" xlink:to="WonderSiriusMember" xlink:title="presentation: PropertyPlantAndEquipmentTypeDomain to WonderSiriusMember" order="16.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_WonderVegaMember" xlink:label="WonderVegaMember" xlink:title="WonderVegaMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentTypeDomain" xlink:to="WonderVegaMember" xlink:title="presentation: PropertyPlantAndEquipmentTypeDomain to WonderVegaMember" order="17.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_WonderAviorMember" xlink:label="WonderAviorMember" xlink:title="WonderAviorMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentTypeDomain" xlink:to="WonderAviorMember" xlink:title="presentation: PropertyPlantAndEquipmentTypeDomain to WonderAviorMember" order="18.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_WonderArcturusMember" xlink:label="WonderArcturusMember" xlink:title="WonderArcturusMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentTypeDomain" xlink:to="WonderArcturusMember" xlink:title="presentation: PropertyPlantAndEquipmentTypeDomain to WonderArcturusMember" order="19.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_WonderMimosaMember" xlink:label="WonderMimosaMember" xlink:title="WonderMimosaMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentTypeDomain" xlink:to="WonderMimosaMember" xlink:title="presentation: PropertyPlantAndEquipmentTypeDomain to WonderMimosaMember" order="20.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_WonderMusicaMember" xlink:label="WonderMusicaMember" xlink:title="WonderMusicaMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentTypeDomain" xlink:to="WonderMusicaMember" xlink:title="presentation: PropertyPlantAndEquipmentTypeDomain to WonderMusicaMember" order="21.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_WonderFormosaMember" xlink:label="WonderFormosaMember" xlink:title="WonderFormosaMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentTypeDomain" xlink:to="WonderFormosaMember" xlink:title="presentation: PropertyPlantAndEquipmentTypeDomain to WonderFormosaMember" order="22.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_MagicPlutoMember" xlink:label="MagicPlutoMember" xlink:title="MagicPlutoMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentTypeDomain" xlink:to="MagicPlutoMember" xlink:title="presentation: PropertyPlantAndEquipmentTypeDomain to MagicPlutoMember" order="23.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_MagicPerseusMember" xlink:label="MagicPerseusMember" xlink:title="MagicPerseusMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentTypeDomain" xlink:to="MagicPerseusMember" xlink:title="presentation: PropertyPlantAndEquipmentTypeDomain to MagicPerseusMember" order="24.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_MagicMarsMember" xlink:label="MagicMarsMember" xlink:title="MagicMarsMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentTypeDomain" xlink:to="MagicMarsMember" xlink:title="presentation: PropertyPlantAndEquipmentTypeDomain to MagicMarsMember" order="25.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_MagicPhoenixMember" xlink:label="MagicPhoenixMember" xlink:title="MagicPhoenixMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentTypeDomain" xlink:to="MagicPhoenixMember" xlink:title="presentation: PropertyPlantAndEquipmentTypeDomain to MagicPhoenixMember" order="26.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_WonderBellatrixMember" xlink:label="WonderBellatrixMember" xlink:title="WonderBellatrixMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentTypeDomain" xlink:to="WonderBellatrixMember" xlink:title="presentation: PropertyPlantAndEquipmentTypeDomain to WonderBellatrixMember" order="27.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentByTypeAxis" xlink:to="PropertyPlantAndEquipmentTypeDomain" xlink:title="presentation: PropertyPlantAndEquipmentByTypeAxis to PropertyPlantAndEquipmentTypeDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="OrganizationTable" xlink:to="PropertyPlantAndEquipmentByTypeAxis" xlink:title="presentation: OrganizationTable to PropertyPlantAndEquipmentByTypeAxis" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_OrganizationLineItems" xlink:label="OrganizationLineItems" xlink:title="OrganizationLineItems" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_SubsidiariesInConsolidationAbstract" xlink:label="SubsidiariesInConsolidationAbstract" xlink:title="SubsidiariesInConsolidationAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityIncorporationStateCountryCode" xlink:label="EntityIncorporationStateCountryCode" xlink:title="EntityIncorporationStateCountryCode" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="SubsidiariesInConsolidationAbstract" xlink:to="EntityIncorporationStateCountryCode" xlink:title="presentation: SubsidiariesInConsolidationAbstract to EntityIncorporationStateCountryCode" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_VesselName" xlink:label="VesselName" xlink:title="VesselName" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="SubsidiariesInConsolidationAbstract" xlink:to="VesselName" xlink:title="presentation: SubsidiariesInConsolidationAbstract to VesselName" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_VesselDeadWeightTonnage" xlink:label="VesselDeadWeightTonnage" xlink:title="VesselDeadWeightTonnage" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="SubsidiariesInConsolidationAbstract" xlink:to="VesselDeadWeightTonnage" xlink:title="presentation: SubsidiariesInConsolidationAbstract to VesselDeadWeightTonnage" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_VesselYearBuilt" xlink:label="VesselYearBuilt" xlink:title="VesselYearBuilt" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="SubsidiariesInConsolidationAbstract" xlink:to="VesselYearBuilt" xlink:title="presentation: SubsidiariesInConsolidationAbstract to VesselYearBuilt" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_VesselDeliveryDateMonthAndYear" xlink:label="VesselDeliveryDateMonthAndYear" xlink:title="VesselDeliveryDateMonthAndYear" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="SubsidiariesInConsolidationAbstract" xlink:to="VesselDeliveryDateMonthAndYear" xlink:title="presentation: SubsidiariesInConsolidationAbstract to VesselDeliveryDateMonthAndYear" order="4.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="OrganizationLineItems" xlink:to="SubsidiariesInConsolidationAbstract" xlink:title="presentation: OrganizationLineItems to SubsidiariesInConsolidationAbstract" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="OrganizationTable" xlink:to="OrganizationLineItems" xlink:title="presentation: OrganizationTable to OrganizationLineItems" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:to="OrganizationTable" xlink:title="presentation: OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract to OrganizationTable" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/BasisOfPresentationAndGeneralInformationRevenueFromChartersDetails">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:label="OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:title="OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ConcentrationRiskTable" xlink:label="ConcentrationRiskTable" xlink:title="ConcentrationRiskTable" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ConcentrationRiskByBenchmarkAxis" xlink:label="ConcentrationRiskByBenchmarkAxis" xlink:title="ConcentrationRiskByBenchmarkAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ConcentrationRiskBenchmarkDomain" xlink:label="ConcentrationRiskBenchmarkDomain" xlink:title="ConcentrationRiskBenchmarkDomain" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SalesRevenueNetMember" xlink:label="SalesRevenueNetMember" xlink:title="SalesRevenueNetMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ConcentrationRiskBenchmarkDomain" xlink:to="SalesRevenueNetMember" xlink:title="presentation: ConcentrationRiskBenchmarkDomain to SalesRevenueNetMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ConcentrationRiskByBenchmarkAxis" xlink:to="ConcentrationRiskBenchmarkDomain" xlink:title="presentation: ConcentrationRiskByBenchmarkAxis to ConcentrationRiskBenchmarkDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ConcentrationRiskTable" xlink:to="ConcentrationRiskByBenchmarkAxis" xlink:title="presentation: ConcentrationRiskTable to ConcentrationRiskByBenchmarkAxis" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ConcentrationRiskByTypeAxis" xlink:label="ConcentrationRiskByTypeAxis" xlink:title="ConcentrationRiskByTypeAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ConcentrationRiskTypeDomain" xlink:label="ConcentrationRiskTypeDomain" xlink:title="ConcentrationRiskTypeDomain" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CustomerConcentrationRiskMember" xlink:label="CustomerConcentrationRiskMember" xlink:title="CustomerConcentrationRiskMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ConcentrationRiskTypeDomain" xlink:to="CustomerConcentrationRiskMember" xlink:title="presentation: ConcentrationRiskTypeDomain to CustomerConcentrationRiskMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ConcentrationRiskByTypeAxis" xlink:to="ConcentrationRiskTypeDomain" xlink:title="presentation: ConcentrationRiskByTypeAxis to ConcentrationRiskTypeDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ConcentrationRiskTable" xlink:to="ConcentrationRiskByTypeAxis" xlink:title="presentation: ConcentrationRiskTable to ConcentrationRiskByTypeAxis" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_MajorCustomersAxis" xlink:label="MajorCustomersAxis" xlink:title="MajorCustomersAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_NameOfMajorCustomerDomain" xlink:label="NameOfMajorCustomerDomain" xlink:title="NameOfMajorCustomerDomain" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_CharterersMember" xlink:label="CharterersMember" xlink:title="CharterersMember" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_ChartererAMember" xlink:label="ChartererAMember" xlink:title="ChartererAMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="CharterersMember" xlink:to="ChartererAMember" xlink:title="presentation: CharterersMember to ChartererAMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_ChartererBMember" xlink:label="ChartererBMember" xlink:title="ChartererBMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="CharterersMember" xlink:to="ChartererBMember" xlink:title="presentation: CharterersMember to ChartererBMember" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_ChartererCMember" xlink:label="ChartererCMember" xlink:title="ChartererCMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="CharterersMember" xlink:to="ChartererCMember" xlink:title="presentation: CharterersMember to ChartererCMember" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_ChartererDMember" xlink:label="ChartererDMember" xlink:title="ChartererDMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="CharterersMember" xlink:to="ChartererDMember" xlink:title="presentation: CharterersMember to ChartererDMember" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_ChartererEMember" xlink:label="ChartererEMember" xlink:title="ChartererEMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="CharterersMember" xlink:to="ChartererEMember" xlink:title="presentation: CharterersMember to ChartererEMember" order="4.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_ChartererFMember" xlink:label="ChartererFMember" xlink:title="ChartererFMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="CharterersMember" xlink:to="ChartererFMember" xlink:title="presentation: CharterersMember to ChartererFMember" order="5.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="NameOfMajorCustomerDomain" xlink:to="CharterersMember" xlink:title="presentation: NameOfMajorCustomerDomain to CharterersMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="MajorCustomersAxis" xlink:to="NameOfMajorCustomerDomain" xlink:title="presentation: MajorCustomersAxis to NameOfMajorCustomerDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ConcentrationRiskTable" xlink:to="MajorCustomersAxis" xlink:title="presentation: ConcentrationRiskTable to MajorCustomersAxis" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ConcentrationRiskLineItems" xlink:label="ConcentrationRiskLineItems" xlink:title="ConcentrationRiskLineItems" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RisksAndUncertaintiesAbstract" xlink:label="RisksAndUncertaintiesAbstract" xlink:title="RisksAndUncertaintiesAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ConcentrationRiskPercentage1" xlink:label="ConcentrationRiskPercentage1" xlink:title="ConcentrationRiskPercentage1" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RisksAndUncertaintiesAbstract" xlink:to="ConcentrationRiskPercentage1" xlink:title="presentation: RisksAndUncertaintiesAbstract to ConcentrationRiskPercentage1" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ConcentrationRiskLineItems" xlink:to="RisksAndUncertaintiesAbstract" xlink:title="presentation: ConcentrationRiskLineItems to RisksAndUncertaintiesAbstract" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ConcentrationRiskTable" xlink:to="ConcentrationRiskLineItems" xlink:title="presentation: ConcentrationRiskTable to ConcentrationRiskLineItems" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:to="ConcentrationRiskTable" xlink:title="presentation: OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract to ConcentrationRiskTable" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/SignificantAccountingPoliciesAndRecentAccountingPronouncementsSegmentReportingDetails">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="AccountingPoliciesAbstract" xlink:title="AccountingPoliciesAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SegmentReportingAbstract" xlink:label="SegmentReportingAbstract" xlink:title="SegmentReportingAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NumberOfReportableSegments" xlink:label="NumberOfReportableSegments" xlink:title="NumberOfReportableSegments" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="SegmentReportingAbstract" xlink:to="NumberOfReportableSegments" xlink:title="presentation: SegmentReportingAbstract to NumberOfReportableSegments" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="AccountingPoliciesAbstract" xlink:to="SegmentReportingAbstract" xlink:title="presentation: AccountingPoliciesAbstract to SegmentReportingAbstract" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/SignificantAccountingPoliciesAndRecentAccountingPronouncementsAccountsReceivableTradeNetDetails">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="AccountingPoliciesAbstract" xlink:title="AccountingPoliciesAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccountsReceivableNetAbstract" xlink:label="AccountsReceivableNetAbstract" xlink:title="AccountsReceivableNetAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProvisionForDoubtfulAccounts" xlink:label="ProvisionForDoubtfulAccounts" xlink:title="ProvisionForDoubtfulAccounts" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="AccountsReceivableNetAbstract" xlink:to="ProvisionForDoubtfulAccounts" xlink:title="presentation: AccountsReceivableNetAbstract to ProvisionForDoubtfulAccounts" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="AccountingPoliciesAbstract" xlink:to="AccountsReceivableNetAbstract" xlink:title="presentation: AccountingPoliciesAbstract to AccountsReceivableNetAbstract" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/SignificantAccountingPoliciesAndRecentAccountingPronouncementsVesselsDepreciationDetails">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="AccountingPoliciesAbstract" xlink:title="AccountingPoliciesAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DepreciationAbstract" xlink:label="DepreciationAbstract" xlink:title="DepreciationAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentUsefulLife" xlink:label="PropertyPlantAndEquipmentUsefulLife" xlink:title="PropertyPlantAndEquipmentUsefulLife" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DepreciationAbstract" xlink:to="PropertyPlantAndEquipmentUsefulLife" xlink:title="presentation: DepreciationAbstract to PropertyPlantAndEquipmentUsefulLife" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="AccountingPoliciesAbstract" xlink:to="DepreciationAbstract" xlink:title="presentation: AccountingPoliciesAbstract to DepreciationAbstract" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/SignificantAccountingPoliciesAndRecentAccountingPronouncementsRevenuesRelatedToVoyageCharterContractsDetails">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="AccountingPoliciesAbstract" xlink:title="AccountingPoliciesAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RevenuePerformanceObligationAbstract" xlink:label="RevenuePerformanceObligationAbstract" xlink:title="RevenuePerformanceObligationAbstract" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_RevenueFromContractWithCustomerNumberOfPerformanceObligations" xlink:label="RevenueFromContractWithCustomerNumberOfPerformanceObligations" xlink:title="RevenueFromContractWithCustomerNumberOfPerformanceObligations" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RevenuePerformanceObligationAbstract" xlink:to="RevenueFromContractWithCustomerNumberOfPerformanceObligations" xlink:title="presentation: RevenuePerformanceObligationAbstract to RevenueFromContractWithCustomerNumberOfPerformanceObligations" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="AccountingPoliciesAbstract" xlink:to="RevenuePerformanceObligationAbstract" xlink:title="presentation: AccountingPoliciesAbstract to RevenuePerformanceObligationAbstract" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/SignificantAccountingPoliciesAndRecentAccountingPronouncementsRecentAccountingPronouncementsDetails">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="AccountingPoliciesAbstract" xlink:title="AccountingPoliciesAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ConvertibleDebt" xlink:label="ConvertibleDebt" xlink:title="ConvertibleDebt" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="AccountingPoliciesAbstract" xlink:to="ConvertibleDebt" xlink:title="presentation: AccountingPoliciesAbstract to ConvertibleDebt" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/TransactionsWithRelatedPartiesSummaryDetails">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RelatedPartyTransactionsAbstract" xlink:label="RelatedPartyTransactionsAbstract" xlink:title="RelatedPartyTransactionsAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:label="ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:title="ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:label="RelatedPartyTransactionsByRelatedPartyAxis" xlink:title="RelatedPartyTransactionsByRelatedPartyAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RelatedPartyDomain" xlink:label="RelatedPartyDomain" xlink:title="RelatedPartyDomain" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_PavimarSAMember" xlink:label="PavimarSAMember" xlink:title="PavimarSAMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyDomain" xlink:to="PavimarSAMember" xlink:title="presentation: RelatedPartyDomain to PavimarSAMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_CastorShipsSAMember" xlink:label="CastorShipsSAMember" xlink:title="CastorShipsSAMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyDomain" xlink:to="CastorShipsSAMember" xlink:title="presentation: RelatedPartyDomain to CastorShipsSAMember" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_ThalassaInvestmentCoSAMember" xlink:label="ThalassaInvestmentCoSAMember" xlink:title="ThalassaInvestmentCoSAMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyDomain" xlink:to="ThalassaInvestmentCoSAMember" xlink:title="presentation: RelatedPartyDomain to ThalassaInvestmentCoSAMember" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_AlexandriaEnterprisesSAMember" xlink:label="AlexandriaEnterprisesSAMember" xlink:title="AlexandriaEnterprisesSAMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyDomain" xlink:to="AlexandriaEnterprisesSAMember" xlink:title="presentation: RelatedPartyDomain to AlexandriaEnterprisesSAMember" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyTransactionsByRelatedPartyAxis" xlink:to="RelatedPartyDomain" xlink:title="presentation: RelatedPartyTransactionsByRelatedPartyAxis to RelatedPartyDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:to="RelatedPartyTransactionsByRelatedPartyAxis" xlink:title="presentation: ScheduleOfRelatedPartyTransactionsByRelatedPartyTable to RelatedPartyTransactionsByRelatedPartyAxis" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentAxis" xlink:label="DebtInstrumentAxis" xlink:title="DebtInstrumentAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentNameDomain" xlink:label="DebtInstrumentNameDomain" xlink:title="DebtInstrumentNameDomain" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_TermLoanFacilityMember" xlink:label="TermLoanFacilityMember" xlink:title="TermLoanFacilityMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentNameDomain" xlink:to="TermLoanFacilityMember" xlink:title="presentation: DebtInstrumentNameDomain to TermLoanFacilityMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentAxis" xlink:to="DebtInstrumentNameDomain" xlink:title="presentation: DebtInstrumentAxis to DebtInstrumentNameDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:to="DebtInstrumentAxis" xlink:title="presentation: ScheduleOfRelatedPartyTransactionsByRelatedPartyTable to DebtInstrumentAxis" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeStatementLocationAxis" xlink:label="IncomeStatementLocationAxis" xlink:title="IncomeStatementLocationAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeStatementLocationDomain" xlink:label="IncomeStatementLocationDomain" xlink:title="IncomeStatementLocationDomain" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_VoyageExpensesMember" xlink:label="VoyageExpensesMember" xlink:title="VoyageExpensesMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IncomeStatementLocationDomain" xlink:to="VoyageExpensesMember" xlink:title="presentation: IncomeStatementLocationDomain to VoyageExpensesMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InterestExpenseMember" xlink:label="InterestExpenseMember" xlink:title="InterestExpenseMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IncomeStatementLocationDomain" xlink:to="InterestExpenseMember" xlink:title="presentation: IncomeStatementLocationDomain to InterestExpenseMember" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_GeneralAndAdministrativeExpenseMember" xlink:label="GeneralAndAdministrativeExpenseMember" xlink:title="GeneralAndAdministrativeExpenseMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IncomeStatementLocationDomain" xlink:to="GeneralAndAdministrativeExpenseMember" xlink:title="presentation: IncomeStatementLocationDomain to GeneralAndAdministrativeExpenseMember" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IncomeStatementLocationAxis" xlink:to="IncomeStatementLocationDomain" xlink:title="presentation: IncomeStatementLocationAxis to IncomeStatementLocationDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:to="IncomeStatementLocationAxis" xlink:title="presentation: ScheduleOfRelatedPartyTransactionsByRelatedPartyTable to IncomeStatementLocationAxis" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RelatedPartyTransactionLineItems" xlink:label="RelatedPartyTransactionLineItems" xlink:title="RelatedPartyTransactionLineItems" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract" xlink:label="RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract" xlink:title="RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_RelatedPartyTransactionManagementFees" xlink:label="RelatedPartyTransactionManagementFees" xlink:title="RelatedPartyTransactionManagementFees" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract" xlink:to="RelatedPartyTransactionManagementFees" xlink:title="presentation: RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract to RelatedPartyTransactionManagementFees" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_RelatedPartyTransactionCommissions" xlink:label="RelatedPartyTransactionCommissions" xlink:title="RelatedPartyTransactionCommissions" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract" xlink:to="RelatedPartyTransactionCommissions" xlink:title="presentation: RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract to RelatedPartyTransactionCommissions" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InterestExpenseRelatedParty" xlink:label="InterestExpenseRelatedParty" xlink:title="InterestExpenseRelatedParty" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract" xlink:to="InterestExpenseRelatedParty" xlink:title="presentation: RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract to InterestExpenseRelatedParty" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RelatedPartyTransactionSellingGeneralAndAdministrativeExpensesFromTransactionsWithRelatedParty" xlink:label="RelatedPartyTransactionSellingGeneralAndAdministrativeExpensesFromTransactionsWithRelatedParty" xlink:title="RelatedPartyTransactionSellingGeneralAndAdministrativeExpensesFromTransactionsWithRelatedParty" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract" xlink:to="RelatedPartyTransactionSellingGeneralAndAdministrativeExpensesFromTransactionsWithRelatedParty" xlink:title="presentation: RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract to RelatedPartyTransactionSellingGeneralAndAdministrativeExpensesFromTransactionsWithRelatedParty" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_RelatedPartyTransactionSaleAndPurchaseCommission" xlink:label="RelatedPartyTransactionSaleAndPurchaseCommission" xlink:title="RelatedPartyTransactionSaleAndPurchaseCommission" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract" xlink:to="RelatedPartyTransactionSaleAndPurchaseCommission" xlink:title="presentation: RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract to RelatedPartyTransactionSaleAndPurchaseCommission" order="4.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyTransactionLineItems" xlink:to="RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract" xlink:title="presentation: RelatedPartyTransactionLineItems to RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RelatedPartyTransactionDueFromToRelatedPartyAbstract" xlink:label="RelatedPartyTransactionDueFromToRelatedPartyAbstract" xlink:title="RelatedPartyTransactionDueFromToRelatedPartyAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AssetsAbstract" xlink:label="AssetsAbstract" xlink:title="AssetsAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DueFromRelatedPartiesCurrent" xlink:label="DueFromRelatedPartiesCurrent" xlink:title="DueFromRelatedPartiesCurrent" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="AssetsAbstract" xlink:to="DueFromRelatedPartiesCurrent" xlink:title="presentation: AssetsAbstract to DueFromRelatedPartiesCurrent" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DueFromRelatedPartiesNoncurrent" xlink:label="DueFromRelatedPartiesNoncurrent" xlink:title="DueFromRelatedPartiesNoncurrent" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="AssetsAbstract" xlink:to="DueFromRelatedPartiesNoncurrent" xlink:title="presentation: AssetsAbstract to DueFromRelatedPartiesNoncurrent" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyTransactionDueFromToRelatedPartyAbstract" xlink:to="AssetsAbstract" xlink:title="presentation: RelatedPartyTransactionDueFromToRelatedPartyAbstract to AssetsAbstract" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LiabilitiesAbstract" xlink:label="LiabilitiesAbstract" xlink:title="LiabilitiesAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DueToRelatedPartiesCurrent" xlink:label="DueToRelatedPartiesCurrent" xlink:title="DueToRelatedPartiesCurrent" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="LiabilitiesAbstract" xlink:to="DueToRelatedPartiesCurrent" xlink:title="presentation: LiabilitiesAbstract to DueToRelatedPartiesCurrent" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NotesPayableRelatedPartiesClassifiedCurrent" xlink:label="NotesPayableRelatedPartiesClassifiedCurrent" xlink:title="NotesPayableRelatedPartiesClassifiedCurrent" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="LiabilitiesAbstract" xlink:to="NotesPayableRelatedPartiesClassifiedCurrent" xlink:title="presentation: LiabilitiesAbstract to NotesPayableRelatedPartiesClassifiedCurrent" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_AccruedInterestRelatedPartiesCurrent" xlink:label="AccruedInterestRelatedPartiesCurrent" xlink:title="AccruedInterestRelatedPartiesCurrent" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="LiabilitiesAbstract" xlink:to="AccruedInterestRelatedPartiesCurrent" xlink:title="presentation: LiabilitiesAbstract to AccruedInterestRelatedPartiesCurrent" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccountsPayableRelatedPartiesCurrent" xlink:label="AccountsPayableRelatedPartiesCurrent" xlink:title="AccountsPayableRelatedPartiesCurrent" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="LiabilitiesAbstract" xlink:to="AccountsPayableRelatedPartiesCurrent" xlink:title="presentation: LiabilitiesAbstract to AccountsPayableRelatedPartiesCurrent" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyTransactionDueFromToRelatedPartyAbstract" xlink:to="LiabilitiesAbstract" xlink:title="presentation: RelatedPartyTransactionDueFromToRelatedPartyAbstract to LiabilitiesAbstract" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyTransactionLineItems" xlink:to="RelatedPartyTransactionDueFromToRelatedPartyAbstract" xlink:title="presentation: RelatedPartyTransactionLineItems to RelatedPartyTransactionDueFromToRelatedPartyAbstract" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:to="RelatedPartyTransactionLineItems" xlink:title="presentation: ScheduleOfRelatedPartyTransactionsByRelatedPartyTable to RelatedPartyTransactionLineItems" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyTransactionsAbstract" xlink:to="ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:title="presentation: RelatedPartyTransactionsAbstract to ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/TransactionsWithRelatedPartiesPavimarDetails">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RelatedPartyTransactionsAbstract" xlink:label="RelatedPartyTransactionsAbstract" xlink:title="RelatedPartyTransactionsAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:label="ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:title="ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:label="RelatedPartyTransactionsByRelatedPartyAxis" xlink:title="RelatedPartyTransactionsByRelatedPartyAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RelatedPartyDomain" xlink:label="RelatedPartyDomain" xlink:title="RelatedPartyDomain" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_PavimarSAMember" xlink:label="PavimarSAMember" xlink:title="PavimarSAMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyDomain" xlink:to="PavimarSAMember" xlink:title="presentation: RelatedPartyDomain to PavimarSAMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyTransactionsByRelatedPartyAxis" xlink:to="RelatedPartyDomain" xlink:title="presentation: RelatedPartyTransactionsByRelatedPartyAxis to RelatedPartyDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:to="RelatedPartyTransactionsByRelatedPartyAxis" xlink:title="presentation: ScheduleOfRelatedPartyTransactionsByRelatedPartyTable to RelatedPartyTransactionsByRelatedPartyAxis" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RelatedPartyTransactionAxis" xlink:label="RelatedPartyTransactionAxis" xlink:title="RelatedPartyTransactionAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RelatedPartyTransactionDomain" xlink:label="RelatedPartyTransactionDomain" xlink:title="RelatedPartyTransactionDomain" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_VesselManagementAgreementsMember" xlink:label="VesselManagementAgreementsMember" xlink:title="VesselManagementAgreementsMember" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_VesselManagementAgreementMagicPMember" xlink:label="VesselManagementAgreementMagicPMember" xlink:title="VesselManagementAgreementMagicPMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="VesselManagementAgreementsMember" xlink:to="VesselManagementAgreementMagicPMember" xlink:title="presentation: VesselManagementAgreementsMember to VesselManagementAgreementMagicPMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_VesselManagementAgreementMagicSunMember" xlink:label="VesselManagementAgreementMagicSunMember" xlink:title="VesselManagementAgreementMagicSunMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="VesselManagementAgreementsMember" xlink:to="VesselManagementAgreementMagicSunMember" xlink:title="presentation: VesselManagementAgreementsMember to VesselManagementAgreementMagicSunMember" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_VesselManagementAgreementMagicMoonMember" xlink:label="VesselManagementAgreementMagicMoonMember" xlink:title="VesselManagementAgreementMagicMoonMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="VesselManagementAgreementsMember" xlink:to="VesselManagementAgreementMagicMoonMember" xlink:title="presentation: VesselManagementAgreementsMember to VesselManagementAgreementMagicMoonMember" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyTransactionDomain" xlink:to="VesselManagementAgreementsMember" xlink:title="presentation: RelatedPartyTransactionDomain to VesselManagementAgreementsMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_TechnicalShipmanagementAgreementsMember" xlink:label="TechnicalShipmanagementAgreementsMember" xlink:title="TechnicalShipmanagementAgreementsMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyTransactionDomain" xlink:to="TechnicalShipmanagementAgreementsMember" xlink:title="presentation: RelatedPartyTransactionDomain to TechnicalShipmanagementAgreementsMember" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_SubcontractedManagementAgreementsMember" xlink:label="SubcontractedManagementAgreementsMember" xlink:title="SubcontractedManagementAgreementsMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyTransactionDomain" xlink:to="SubcontractedManagementAgreementsMember" xlink:title="presentation: RelatedPartyTransactionDomain to SubcontractedManagementAgreementsMember" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_WorkingCapitalAdvancesMember" xlink:label="WorkingCapitalAdvancesMember" xlink:title="WorkingCapitalAdvancesMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyTransactionDomain" xlink:to="WorkingCapitalAdvancesMember" xlink:title="presentation: RelatedPartyTransactionDomain to WorkingCapitalAdvancesMember" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyTransactionAxis" xlink:to="RelatedPartyTransactionDomain" xlink:title="presentation: RelatedPartyTransactionAxis to RelatedPartyTransactionDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:to="RelatedPartyTransactionAxis" xlink:title="presentation: ScheduleOfRelatedPartyTransactionsByRelatedPartyTable to RelatedPartyTransactionAxis" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:label="PropertyPlantAndEquipmentByTypeAxis" xlink:title="PropertyPlantAndEquipmentByTypeAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:label="PropertyPlantAndEquipmentTypeDomain" xlink:title="PropertyPlantAndEquipmentTypeDomain" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_DryBulkCarrierMember" xlink:label="DryBulkCarrierMember" xlink:title="DryBulkCarrierMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentTypeDomain" xlink:to="DryBulkCarrierMember" xlink:title="presentation: PropertyPlantAndEquipmentTypeDomain to DryBulkCarrierMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_TankerMember" xlink:label="TankerMember" xlink:title="TankerMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentTypeDomain" xlink:to="TankerMember" xlink:title="presentation: PropertyPlantAndEquipmentTypeDomain to TankerMember" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentByTypeAxis" xlink:to="PropertyPlantAndEquipmentTypeDomain" xlink:title="presentation: PropertyPlantAndEquipmentByTypeAxis to PropertyPlantAndEquipmentTypeDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:to="PropertyPlantAndEquipmentByTypeAxis" xlink:title="presentation: ScheduleOfRelatedPartyTransactionsByRelatedPartyTable to PropertyPlantAndEquipmentByTypeAxis" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RelatedPartyTransactionLineItems" xlink:label="RelatedPartyTransactionLineItems" xlink:title="RelatedPartyTransactionLineItems" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract" xlink:label="RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract" xlink:title="RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_RelatedPartyTransactionFixedDailyFee" xlink:label="RelatedPartyTransactionFixedDailyFee" xlink:title="RelatedPartyTransactionFixedDailyFee" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract" xlink:to="RelatedPartyTransactionFixedDailyFee" xlink:title="presentation: RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract to RelatedPartyTransactionFixedDailyFee" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_NumberOfOtherVesselsWithDailyFixedFee" xlink:label="NumberOfOtherVesselsWithDailyFixedFee" xlink:title="NumberOfOtherVesselsWithDailyFixedFee" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract" xlink:to="NumberOfOtherVesselsWithDailyFixedFee" xlink:title="presentation: RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract to NumberOfOtherVesselsWithDailyFixedFee" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_RelatedPartyTransactionTermOfAgreement" xlink:label="RelatedPartyTransactionTermOfAgreement" xlink:title="RelatedPartyTransactionTermOfAgreement" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract" xlink:to="RelatedPartyTransactionTermOfAgreement" xlink:title="presentation: RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract to RelatedPartyTransactionTermOfAgreement" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_RelatedPartyTransactionRenewalTermOfAgreement" xlink:label="RelatedPartyTransactionRenewalTermOfAgreement" xlink:title="RelatedPartyTransactionRenewalTermOfAgreement" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract" xlink:to="RelatedPartyTransactionRenewalTermOfAgreement" xlink:title="presentation: RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract to RelatedPartyTransactionRenewalTermOfAgreement" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_RelatedPartyTransactionShipmanagementTerminationFeeMultiplier" xlink:label="RelatedPartyTransactionShipmanagementTerminationFeeMultiplier" xlink:title="RelatedPartyTransactionShipmanagementTerminationFeeMultiplier" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract" xlink:to="RelatedPartyTransactionShipmanagementTerminationFeeMultiplier" xlink:title="presentation: RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract to RelatedPartyTransactionShipmanagementTerminationFeeMultiplier" order="4.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_NumberOfVesselsUnderTechnicalManagement" xlink:label="NumberOfVesselsUnderTechnicalManagement" xlink:title="NumberOfVesselsUnderTechnicalManagement" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract" xlink:to="NumberOfVesselsUnderTechnicalManagement" xlink:title="presentation: RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract to NumberOfVesselsUnderTechnicalManagement" order="5.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_NumberOfVesselsUnderOperationalManagement" xlink:label="NumberOfVesselsUnderOperationalManagement" xlink:title="NumberOfVesselsUnderOperationalManagement" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract" xlink:to="NumberOfVesselsUnderOperationalManagement" xlink:title="presentation: RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract to NumberOfVesselsUnderOperationalManagement" order="6.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_WorkingCapitalGuaranteeDeposits" xlink:label="WorkingCapitalGuaranteeDeposits" xlink:title="WorkingCapitalGuaranteeDeposits" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract" xlink:to="WorkingCapitalGuaranteeDeposits" xlink:title="presentation: RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract to WorkingCapitalGuaranteeDeposits" order="7.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DueToRelatedPartiesCurrent" xlink:label="DueToRelatedPartiesCurrent" xlink:title="DueToRelatedPartiesCurrent" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract" xlink:to="DueToRelatedPartiesCurrent" xlink:title="presentation: RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract to DueToRelatedPartiesCurrent" order="8.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DueFromRelatedPartiesNoncurrent" xlink:label="DueFromRelatedPartiesNoncurrent" xlink:title="DueFromRelatedPartiesNoncurrent" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract" xlink:to="DueFromRelatedPartiesNoncurrent" xlink:title="presentation: RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract to DueFromRelatedPartiesNoncurrent" order="9.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DueFromRelatedPartiesCurrent" xlink:label="DueFromRelatedPartiesCurrent" xlink:title="DueFromRelatedPartiesCurrent" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract" xlink:to="DueFromRelatedPartiesCurrent" xlink:title="presentation: RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract to DueFromRelatedPartiesCurrent" order="10.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_RelatedPartyTransactionManagementFees" xlink:label="RelatedPartyTransactionManagementFees" xlink:title="RelatedPartyTransactionManagementFees" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract" xlink:to="RelatedPartyTransactionManagementFees" xlink:title="presentation: RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract to RelatedPartyTransactionManagementFees" order="11.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyTransactionLineItems" xlink:to="RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract" xlink:title="presentation: RelatedPartyTransactionLineItems to RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:to="RelatedPartyTransactionLineItems" xlink:title="presentation: ScheduleOfRelatedPartyTransactionsByRelatedPartyTable to RelatedPartyTransactionLineItems" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyTransactionsAbstract" xlink:to="ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:title="presentation: RelatedPartyTransactionsAbstract to ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/TransactionsWithRelatedPartiesThalassaDetails">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RelatedPartyTransactionsAbstract" xlink:label="RelatedPartyTransactionsAbstract" xlink:title="RelatedPartyTransactionsAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:label="ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:title="ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:label="RelatedPartyTransactionsByRelatedPartyAxis" xlink:title="RelatedPartyTransactionsByRelatedPartyAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RelatedPartyDomain" xlink:label="RelatedPartyDomain" xlink:title="RelatedPartyDomain" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_ThalassaInvestmentCoSAMember" xlink:label="ThalassaInvestmentCoSAMember" xlink:title="ThalassaInvestmentCoSAMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyDomain" xlink:to="ThalassaInvestmentCoSAMember" xlink:title="presentation: RelatedPartyDomain to ThalassaInvestmentCoSAMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyTransactionsByRelatedPartyAxis" xlink:to="RelatedPartyDomain" xlink:title="presentation: RelatedPartyTransactionsByRelatedPartyAxis to RelatedPartyDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:to="RelatedPartyTransactionsByRelatedPartyAxis" xlink:title="presentation: ScheduleOfRelatedPartyTransactionsByRelatedPartyTable to RelatedPartyTransactionsByRelatedPartyAxis" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentAxis" xlink:label="DebtInstrumentAxis" xlink:title="DebtInstrumentAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentNameDomain" xlink:label="DebtInstrumentNameDomain" xlink:title="DebtInstrumentNameDomain" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_TermLoanFacilityMember" xlink:label="TermLoanFacilityMember" xlink:title="TermLoanFacilityMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentNameDomain" xlink:to="TermLoanFacilityMember" xlink:title="presentation: DebtInstrumentNameDomain to TermLoanFacilityMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentAxis" xlink:to="DebtInstrumentNameDomain" xlink:title="presentation: DebtInstrumentAxis to DebtInstrumentNameDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:to="DebtInstrumentAxis" xlink:title="presentation: ScheduleOfRelatedPartyTransactionsByRelatedPartyTable to DebtInstrumentAxis" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeStatementLocationAxis" xlink:label="IncomeStatementLocationAxis" xlink:title="IncomeStatementLocationAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeStatementLocationDomain" xlink:label="IncomeStatementLocationDomain" xlink:title="IncomeStatementLocationDomain" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InterestExpenseMember" xlink:label="InterestExpenseMember" xlink:title="InterestExpenseMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IncomeStatementLocationDomain" xlink:to="InterestExpenseMember" xlink:title="presentation: IncomeStatementLocationDomain to InterestExpenseMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IncomeStatementLocationAxis" xlink:to="IncomeStatementLocationDomain" xlink:title="presentation: IncomeStatementLocationAxis to IncomeStatementLocationDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:to="IncomeStatementLocationAxis" xlink:title="presentation: ScheduleOfRelatedPartyTransactionsByRelatedPartyTable to IncomeStatementLocationAxis" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RelatedPartyTransactionLineItems" xlink:label="RelatedPartyTransactionLineItems" xlink:title="RelatedPartyTransactionLineItems" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract" xlink:label="RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract" xlink:title="RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentFaceAmount" xlink:label="DebtInstrumentFaceAmount" xlink:title="DebtInstrumentFaceAmount" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract" xlink:to="DebtInstrumentFaceAmount" xlink:title="presentation: RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract to DebtInstrumentFaceAmount" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProceedsFromRelatedPartyDebt" xlink:label="ProceedsFromRelatedPartyDebt" xlink:title="ProceedsFromRelatedPartyDebt" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract" xlink:to="ProceedsFromRelatedPartyDebt" xlink:title="presentation: RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract to ProceedsFromRelatedPartyDebt" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage" xlink:label="DebtInstrumentInterestRateStatedPercentage" xlink:title="DebtInstrumentInterestRateStatedPercentage" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract" xlink:to="DebtInstrumentInterestRateStatedPercentage" xlink:title="presentation: RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract to DebtInstrumentInterestRateStatedPercentage" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_DebtInstrumentTermOfExtension" xlink:label="DebtInstrumentTermOfExtension" xlink:title="DebtInstrumentTermOfExtension" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract" xlink:to="DebtInstrumentTermOfExtension" xlink:title="presentation: RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract to DebtInstrumentTermOfExtension" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentMaturityDate" xlink:label="DebtInstrumentMaturityDate" xlink:title="DebtInstrumentMaturityDate" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract" xlink:to="DebtInstrumentMaturityDate" xlink:title="presentation: RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract to DebtInstrumentMaturityDate" order="4.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RepaymentsOfRelatedPartyDebt" xlink:label="RepaymentsOfRelatedPartyDebt" xlink:title="RepaymentsOfRelatedPartyDebt" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract" xlink:to="RepaymentsOfRelatedPartyDebt" xlink:title="presentation: RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract to RepaymentsOfRelatedPartyDebt" order="5.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_AccruedInterestRelatedPartiesCurrent" xlink:label="AccruedInterestRelatedPartiesCurrent" xlink:title="AccruedInterestRelatedPartiesCurrent" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract" xlink:to="AccruedInterestRelatedPartiesCurrent" xlink:title="presentation: RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract to AccruedInterestRelatedPartiesCurrent" order="6.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InterestExpenseRelatedParty" xlink:label="InterestExpenseRelatedParty" xlink:title="InterestExpenseRelatedParty" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract" xlink:to="InterestExpenseRelatedParty" xlink:title="presentation: RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract to InterestExpenseRelatedParty" order="7.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyTransactionLineItems" xlink:to="RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract" xlink:title="presentation: RelatedPartyTransactionLineItems to RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:to="RelatedPartyTransactionLineItems" xlink:title="presentation: ScheduleOfRelatedPartyTransactionsByRelatedPartyTable to RelatedPartyTransactionLineItems" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyTransactionsAbstract" xlink:to="ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:title="presentation: RelatedPartyTransactionsAbstract to ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/TransactionsWithRelatedPartiesCastorShipsDetails">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RelatedPartyTransactionsAbstract" xlink:label="RelatedPartyTransactionsAbstract" xlink:title="RelatedPartyTransactionsAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:label="ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:title="ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:label="RelatedPartyTransactionsByRelatedPartyAxis" xlink:title="RelatedPartyTransactionsByRelatedPartyAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RelatedPartyDomain" xlink:label="RelatedPartyDomain" xlink:title="RelatedPartyDomain" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_CastorShipsSAMember" xlink:label="CastorShipsSAMember" xlink:title="CastorShipsSAMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyDomain" xlink:to="CastorShipsSAMember" xlink:title="presentation: RelatedPartyDomain to CastorShipsSAMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyTransactionsByRelatedPartyAxis" xlink:to="RelatedPartyDomain" xlink:title="presentation: RelatedPartyTransactionsByRelatedPartyAxis to RelatedPartyDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:to="RelatedPartyTransactionsByRelatedPartyAxis" xlink:title="presentation: ScheduleOfRelatedPartyTransactionsByRelatedPartyTable to RelatedPartyTransactionsByRelatedPartyAxis" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RelatedPartyTransactionAxis" xlink:label="RelatedPartyTransactionAxis" xlink:title="RelatedPartyTransactionAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RelatedPartyTransactionDomain" xlink:label="RelatedPartyTransactionDomain" xlink:title="RelatedPartyTransactionDomain" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_ManagementAgreementsMember" xlink:label="ManagementAgreementsMember" xlink:title="ManagementAgreementsMember" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_CommercialShipmanagementAgreementsMember" xlink:label="CommercialShipmanagementAgreementsMember" xlink:title="CommercialShipmanagementAgreementsMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ManagementAgreementsMember" xlink:to="CommercialShipmanagementAgreementsMember" xlink:title="presentation: ManagementAgreementsMember to CommercialShipmanagementAgreementsMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyTransactionDomain" xlink:to="ManagementAgreementsMember" xlink:title="presentation: RelatedPartyTransactionDomain to ManagementAgreementsMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyTransactionAxis" xlink:to="RelatedPartyTransactionDomain" xlink:title="presentation: RelatedPartyTransactionAxis to RelatedPartyTransactionDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:to="RelatedPartyTransactionAxis" xlink:title="presentation: ScheduleOfRelatedPartyTransactionsByRelatedPartyTable to RelatedPartyTransactionAxis" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeStatementLocationAxis" xlink:label="IncomeStatementLocationAxis" xlink:title="IncomeStatementLocationAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeStatementLocationDomain" xlink:label="IncomeStatementLocationDomain" xlink:title="IncomeStatementLocationDomain" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_ManagementFeesToRelatedPartyMember" xlink:label="ManagementFeesToRelatedPartyMember" xlink:title="ManagementFeesToRelatedPartyMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IncomeStatementLocationDomain" xlink:to="ManagementFeesToRelatedPartyMember" xlink:title="presentation: IncomeStatementLocationDomain to ManagementFeesToRelatedPartyMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_VoyageExpensesMember" xlink:label="VoyageExpensesMember" xlink:title="VoyageExpensesMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IncomeStatementLocationDomain" xlink:to="VoyageExpensesMember" xlink:title="presentation: IncomeStatementLocationDomain to VoyageExpensesMember" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IncomeStatementLocationAxis" xlink:to="IncomeStatementLocationDomain" xlink:title="presentation: IncomeStatementLocationAxis to IncomeStatementLocationDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:to="IncomeStatementLocationAxis" xlink:title="presentation: ScheduleOfRelatedPartyTransactionsByRelatedPartyTable to IncomeStatementLocationAxis" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RelatedPartyTransactionLineItems" xlink:label="RelatedPartyTransactionLineItems" xlink:title="RelatedPartyTransactionLineItems" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract" xlink:label="RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract" xlink:title="RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_RelatedPartyTransactionQuarterlyManagementFee" xlink:label="RelatedPartyTransactionQuarterlyManagementFee" xlink:title="RelatedPartyTransactionQuarterlyManagementFee" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract" xlink:to="RelatedPartyTransactionQuarterlyManagementFee" xlink:title="presentation: RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract to RelatedPartyTransactionQuarterlyManagementFee" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_RelatedPartyTransactionFixedDailyFee" xlink:label="RelatedPartyTransactionFixedDailyFee" xlink:title="RelatedPartyTransactionFixedDailyFee" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract" xlink:to="RelatedPartyTransactionFixedDailyFee" xlink:title="presentation: RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract to RelatedPartyTransactionFixedDailyFee" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_RelatedPartyTransactionCommissionRate" xlink:label="RelatedPartyTransactionCommissionRate" xlink:title="RelatedPartyTransactionCommissionRate" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract" xlink:to="RelatedPartyTransactionCommissionRate" xlink:title="presentation: RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract to RelatedPartyTransactionCommissionRate" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_RelatedPartyTransactionCommissionRateOnEachVesselSaleAndPurchaseTransaction" xlink:label="RelatedPartyTransactionCommissionRateOnEachVesselSaleAndPurchaseTransaction" xlink:title="RelatedPartyTransactionCommissionRateOnEachVesselSaleAndPurchaseTransaction" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract" xlink:to="RelatedPartyTransactionCommissionRateOnEachVesselSaleAndPurchaseTransaction" xlink:title="presentation: RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract to RelatedPartyTransactionCommissionRateOnEachVesselSaleAndPurchaseTransaction" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_RelatedPartyTransactionTermOfAgreement" xlink:label="RelatedPartyTransactionTermOfAgreement" xlink:title="RelatedPartyTransactionTermOfAgreement" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract" xlink:to="RelatedPartyTransactionTermOfAgreement" xlink:title="presentation: RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract to RelatedPartyTransactionTermOfAgreement" order="4.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_RelatedPartyTransactionRenewalTermOfAgreement" xlink:label="RelatedPartyTransactionRenewalTermOfAgreement" xlink:title="RelatedPartyTransactionRenewalTermOfAgreement" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract" xlink:to="RelatedPartyTransactionRenewalTermOfAgreement" xlink:title="presentation: RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract to RelatedPartyTransactionRenewalTermOfAgreement" order="5.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_RelatedPartyTransactionManagementTerminationFeeMultiplier" xlink:label="RelatedPartyTransactionManagementTerminationFeeMultiplier" xlink:title="RelatedPartyTransactionManagementTerminationFeeMultiplier" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract" xlink:to="RelatedPartyTransactionManagementTerminationFeeMultiplier" xlink:title="presentation: RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract to RelatedPartyTransactionManagementTerminationFeeMultiplier" order="6.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RelatedPartyTransactionSellingGeneralAndAdministrativeExpensesFromTransactionsWithRelatedParty" xlink:label="RelatedPartyTransactionSellingGeneralAndAdministrativeExpensesFromTransactionsWithRelatedParty" xlink:title="RelatedPartyTransactionSellingGeneralAndAdministrativeExpensesFromTransactionsWithRelatedParty" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract" xlink:to="RelatedPartyTransactionSellingGeneralAndAdministrativeExpensesFromTransactionsWithRelatedParty" xlink:title="presentation: RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract to RelatedPartyTransactionSellingGeneralAndAdministrativeExpensesFromTransactionsWithRelatedParty" order="7.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_RelatedPartyTransactionManagementFees" xlink:label="RelatedPartyTransactionManagementFees" xlink:title="RelatedPartyTransactionManagementFees" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract" xlink:to="RelatedPartyTransactionManagementFees" xlink:title="presentation: RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract to RelatedPartyTransactionManagementFees" order="8.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_RelatedPartyTransactionCommissions" xlink:label="RelatedPartyTransactionCommissions" xlink:title="RelatedPartyTransactionCommissions" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract" xlink:to="RelatedPartyTransactionCommissions" xlink:title="presentation: RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract to RelatedPartyTransactionCommissions" order="9.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_RelatedPartyTransactionSaleAndPurchaseCommission" xlink:label="RelatedPartyTransactionSaleAndPurchaseCommission" xlink:title="RelatedPartyTransactionSaleAndPurchaseCommission" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract" xlink:to="RelatedPartyTransactionSaleAndPurchaseCommission" xlink:title="presentation: RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract to RelatedPartyTransactionSaleAndPurchaseCommission" order="10.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyTransactionLineItems" xlink:to="RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract" xlink:title="presentation: RelatedPartyTransactionLineItems to RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:to="RelatedPartyTransactionLineItems" xlink:title="presentation: ScheduleOfRelatedPartyTransactionsByRelatedPartyTable to RelatedPartyTransactionLineItems" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyTransactionsAbstract" xlink:to="ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:title="presentation: RelatedPartyTransactionsAbstract to ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/TransactionsWithRelatedPartiesAlexandriaEnterprisesSDetails">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RelatedPartyTransactionsAbstract" xlink:label="RelatedPartyTransactionsAbstract" xlink:title="RelatedPartyTransactionsAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:label="ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:title="ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:label="RelatedPartyTransactionsByRelatedPartyAxis" xlink:title="RelatedPartyTransactionsByRelatedPartyAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RelatedPartyDomain" xlink:label="RelatedPartyDomain" xlink:title="RelatedPartyDomain" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_AlexandriaEnterprisesSAMember" xlink:label="AlexandriaEnterprisesSAMember" xlink:title="AlexandriaEnterprisesSAMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyDomain" xlink:to="AlexandriaEnterprisesSAMember" xlink:title="presentation: RelatedPartyDomain to AlexandriaEnterprisesSAMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyTransactionsByRelatedPartyAxis" xlink:to="RelatedPartyDomain" xlink:title="presentation: RelatedPartyTransactionsByRelatedPartyAxis to RelatedPartyDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:to="RelatedPartyTransactionsByRelatedPartyAxis" xlink:title="presentation: ScheduleOfRelatedPartyTransactionsByRelatedPartyTable to RelatedPartyTransactionsByRelatedPartyAxis" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RelatedPartyTransactionAxis" xlink:label="RelatedPartyTransactionAxis" xlink:title="RelatedPartyTransactionAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RelatedPartyTransactionDomain" xlink:label="RelatedPartyTransactionDomain" xlink:title="RelatedPartyTransactionDomain" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_CommercialServicesMember" xlink:label="CommercialServicesMember" xlink:title="CommercialServicesMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyTransactionDomain" xlink:to="CommercialServicesMember" xlink:title="presentation: RelatedPartyTransactionDomain to CommercialServicesMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyTransactionAxis" xlink:to="RelatedPartyTransactionDomain" xlink:title="presentation: RelatedPartyTransactionAxis to RelatedPartyTransactionDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:to="RelatedPartyTransactionAxis" xlink:title="presentation: ScheduleOfRelatedPartyTransactionsByRelatedPartyTable to RelatedPartyTransactionAxis" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeStatementLocationAxis" xlink:label="IncomeStatementLocationAxis" xlink:title="IncomeStatementLocationAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeStatementLocationDomain" xlink:label="IncomeStatementLocationDomain" xlink:title="IncomeStatementLocationDomain" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_VoyageExpensesMember" xlink:label="VoyageExpensesMember" xlink:title="VoyageExpensesMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IncomeStatementLocationDomain" xlink:to="VoyageExpensesMember" xlink:title="presentation: IncomeStatementLocationDomain to VoyageExpensesMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IncomeStatementLocationAxis" xlink:to="IncomeStatementLocationDomain" xlink:title="presentation: IncomeStatementLocationAxis to IncomeStatementLocationDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:to="IncomeStatementLocationAxis" xlink:title="presentation: ScheduleOfRelatedPartyTransactionsByRelatedPartyTable to IncomeStatementLocationAxis" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RelatedPartyTransactionLineItems" xlink:label="RelatedPartyTransactionLineItems" xlink:title="RelatedPartyTransactionLineItems" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract" xlink:label="RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract" xlink:title="RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_RelatedPartyTransactionCommissionRate" xlink:label="RelatedPartyTransactionCommissionRate" xlink:title="RelatedPartyTransactionCommissionRate" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract" xlink:to="RelatedPartyTransactionCommissionRate" xlink:title="presentation: RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract to RelatedPartyTransactionCommissionRate" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_RelatedPartyTransactionCommissions" xlink:label="RelatedPartyTransactionCommissions" xlink:title="RelatedPartyTransactionCommissions" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract" xlink:to="RelatedPartyTransactionCommissions" xlink:title="presentation: RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract to RelatedPartyTransactionCommissions" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DueToRelatedPartiesCurrentAndNoncurrent" xlink:label="DueToRelatedPartiesCurrentAndNoncurrent" xlink:title="DueToRelatedPartiesCurrentAndNoncurrent" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract" xlink:to="DueToRelatedPartiesCurrentAndNoncurrent" xlink:title="presentation: RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract to DueToRelatedPartiesCurrentAndNoncurrent" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyTransactionLineItems" xlink:to="RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract" xlink:title="presentation: RelatedPartyTransactionLineItems to RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:to="RelatedPartyTransactionLineItems" xlink:title="presentation: ScheduleOfRelatedPartyTransactionsByRelatedPartyTable to RelatedPartyTransactionLineItems" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyTransactionsAbstract" xlink:to="ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:title="presentation: RelatedPartyTransactionsAbstract to ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/TransactionsWithRelatedPartiesVesselAcquisitionsDetails">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RelatedPartyTransactionsAbstract" xlink:label="RelatedPartyTransactionsAbstract" xlink:title="RelatedPartyTransactionsAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:label="ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:title="ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:label="RelatedPartyTransactionsByRelatedPartyAxis" xlink:title="RelatedPartyTransactionsByRelatedPartyAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RelatedPartyDomain" xlink:label="RelatedPartyDomain" xlink:title="RelatedPartyDomain" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_ThalassaInvestmentCoSAMember" xlink:label="ThalassaInvestmentCoSAMember" xlink:title="ThalassaInvestmentCoSAMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyDomain" xlink:to="ThalassaInvestmentCoSAMember" xlink:title="presentation: RelatedPartyDomain to ThalassaInvestmentCoSAMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyTransactionsByRelatedPartyAxis" xlink:to="RelatedPartyDomain" xlink:title="presentation: RelatedPartyTransactionsByRelatedPartyAxis to RelatedPartyDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:to="RelatedPartyTransactionsByRelatedPartyAxis" xlink:title="presentation: ScheduleOfRelatedPartyTransactionsByRelatedPartyTable to RelatedPartyTransactionsByRelatedPartyAxis" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:label="PropertyPlantAndEquipmentByTypeAxis" xlink:title="PropertyPlantAndEquipmentByTypeAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:label="PropertyPlantAndEquipmentTypeDomain" xlink:title="PropertyPlantAndEquipmentTypeDomain" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_MagicMoonMember" xlink:label="MagicMoonMember" xlink:title="MagicMoonMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentTypeDomain" xlink:to="MagicMoonMember" xlink:title="presentation: PropertyPlantAndEquipmentTypeDomain to MagicMoonMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentByTypeAxis" xlink:to="PropertyPlantAndEquipmentTypeDomain" xlink:title="presentation: PropertyPlantAndEquipmentByTypeAxis to PropertyPlantAndEquipmentTypeDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:to="PropertyPlantAndEquipmentByTypeAxis" xlink:title="presentation: ScheduleOfRelatedPartyTransactionsByRelatedPartyTable to PropertyPlantAndEquipmentByTypeAxis" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentAxis" xlink:label="DebtInstrumentAxis" xlink:title="DebtInstrumentAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentNameDomain" xlink:label="DebtInstrumentNameDomain" xlink:title="DebtInstrumentNameDomain" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_BridgeLoan75MillionMember" xlink:label="BridgeLoan75MillionMember" xlink:title="BridgeLoan75MillionMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentNameDomain" xlink:to="BridgeLoan75MillionMember" xlink:title="presentation: DebtInstrumentNameDomain to BridgeLoan75MillionMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentAxis" xlink:to="DebtInstrumentNameDomain" xlink:title="presentation: DebtInstrumentAxis to DebtInstrumentNameDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:to="DebtInstrumentAxis" xlink:title="presentation: ScheduleOfRelatedPartyTransactionsByRelatedPartyTable to DebtInstrumentAxis" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RelatedPartyTransactionLineItems" xlink:label="RelatedPartyTransactionLineItems" xlink:title="RelatedPartyTransactionLineItems" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract" xlink:label="RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract" xlink:title="RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentAdditions" xlink:label="PropertyPlantAndEquipmentAdditions" xlink:title="PropertyPlantAndEquipmentAdditions" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract" xlink:to="PropertyPlantAndEquipmentAdditions" xlink:title="presentation: RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract to PropertyPlantAndEquipmentAdditions" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentFaceAmount" xlink:label="DebtInstrumentFaceAmount" xlink:title="DebtInstrumentFaceAmount" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract" xlink:to="DebtInstrumentFaceAmount" xlink:title="presentation: RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract to DebtInstrumentFaceAmount" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProceedsFromRelatedPartyDebt" xlink:label="ProceedsFromRelatedPartyDebt" xlink:title="ProceedsFromRelatedPartyDebt" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract" xlink:to="ProceedsFromRelatedPartyDebt" xlink:title="presentation: RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract to ProceedsFromRelatedPartyDebt" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyTransactionLineItems" xlink:to="RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract" xlink:title="presentation: RelatedPartyTransactionLineItems to RelatedPartyTransactionDueFromToRelatedPartyCurrentAbstract" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:to="RelatedPartyTransactionLineItems" xlink:title="presentation: ScheduleOfRelatedPartyTransactionsByRelatedPartyTable to RelatedPartyTransactionLineItems" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyTransactionsAbstract" xlink:to="ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:title="presentation: RelatedPartyTransactionsAbstract to ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/DeferredChargesNetDetails">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredCostsCapitalizedPrepaidAndOtherAssetsDisclosureAbstract" xlink:label="DeferredCostsCapitalizedPrepaidAndOtherAssetsDisclosureAbstract" xlink:title="DeferredCostsCapitalizedPrepaidAndOtherAssetsDisclosureAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CapitalizedContractCostNetNoncurrent" xlink:label="CapitalizedContractCostNetNoncurrent" xlink:title="CapitalizedContractCostNetNoncurrent" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DeferredCostsCapitalizedPrepaidAndOtherAssetsDisclosureAbstract" xlink:to="CapitalizedContractCostNetNoncurrent" xlink:title="presentation: DeferredCostsCapitalizedPrepaidAndOtherAssetsDisclosureAbstract to CapitalizedContractCostNetNoncurrent" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_CapitalizedContractCostAdditions" xlink:label="CapitalizedContractCostAdditions" xlink:title="CapitalizedContractCostAdditions" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DeferredCostsCapitalizedPrepaidAndOtherAssetsDisclosureAbstract" xlink:to="CapitalizedContractCostAdditions" xlink:title="presentation: DeferredCostsCapitalizedPrepaidAndOtherAssetsDisclosureAbstract to CapitalizedContractCostAdditions" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CapitalizedContractCostAmortization" xlink:label="CapitalizedContractCostAmortization" xlink:title="CapitalizedContractCostAmortization" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DeferredCostsCapitalizedPrepaidAndOtherAssetsDisclosureAbstract" xlink:to="CapitalizedContractCostAmortization" xlink:title="presentation: DeferredCostsCapitalizedPrepaidAndOtherAssetsDisclosureAbstract to CapitalizedContractCostAmortization" order="2.0" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CapitalizedContractCostNetNoncurrent" xlink:label="CapitalizedContractCostNetNoncurrent_2" xlink:title="CapitalizedContractCostNetNoncurrent" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DeferredCostsCapitalizedPrepaidAndOtherAssetsDisclosureAbstract" xlink:to="CapitalizedContractCostNetNoncurrent_2" xlink:title="presentation: DeferredCostsCapitalizedPrepaidAndOtherAssetsDisclosureAbstract to CapitalizedContractCostNetNoncurrent" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_NumberOfAdditionalVesselsCompletingScheduledDryDock" xlink:label="NumberOfAdditionalVesselsCompletingScheduledDryDock" xlink:title="NumberOfAdditionalVesselsCompletingScheduledDryDock" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DeferredCostsCapitalizedPrepaidAndOtherAssetsDisclosureAbstract" xlink:to="NumberOfAdditionalVesselsCompletingScheduledDryDock" xlink:title="presentation: DeferredCostsCapitalizedPrepaidAndOtherAssetsDisclosureAbstract to NumberOfAdditionalVesselsCompletingScheduledDryDock" order="4.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/FairValueOfAcquiredTimeCharterDetails">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherLiabilitiesDisclosureAbstract" xlink:label="OtherLiabilitiesDisclosureAbstract" xlink:title="OtherLiabilitiesDisclosureAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" xlink:label="ScheduleOfPropertyPlantAndEquipmentTable" xlink:title="ScheduleOfPropertyPlantAndEquipmentTable" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:label="PropertyPlantAndEquipmentByTypeAxis" xlink:title="PropertyPlantAndEquipmentByTypeAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:label="PropertyPlantAndEquipmentTypeDomain" xlink:title="PropertyPlantAndEquipmentTypeDomain" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_MagicPlutoMember" xlink:label="MagicPlutoMember" xlink:title="MagicPlutoMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentTypeDomain" xlink:to="MagicPlutoMember" xlink:title="presentation: PropertyPlantAndEquipmentTypeDomain to MagicPlutoMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentByTypeAxis" xlink:to="PropertyPlantAndEquipmentTypeDomain" xlink:title="presentation: PropertyPlantAndEquipmentByTypeAxis to PropertyPlantAndEquipmentTypeDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ScheduleOfPropertyPlantAndEquipmentTable" xlink:to="PropertyPlantAndEquipmentByTypeAxis" xlink:title="presentation: ScheduleOfPropertyPlantAndEquipmentTable to PropertyPlantAndEquipmentByTypeAxis" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentLineItems" xlink:label="PropertyPlantAndEquipmentLineItems" xlink:title="PropertyPlantAndEquipmentLineItems" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_BelowMarketLeaseAbstract" xlink:label="BelowMarketLeaseAbstract" xlink:title="BelowMarketLeaseAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_BelowMarketLeaseNet" xlink:label="BelowMarketLeaseNet" xlink:title="BelowMarketLeaseNet" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="BelowMarketLeaseAbstract" xlink:to="BelowMarketLeaseNet" xlink:title="presentation: BelowMarketLeaseAbstract to BelowMarketLeaseNet" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AmortizationOfAboveAndBelowMarketLeases" xlink:label="AmortizationOfAboveAndBelowMarketLeases" xlink:title="AmortizationOfAboveAndBelowMarketLeases" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="BelowMarketLeaseAbstract" xlink:to="AmortizationOfAboveAndBelowMarketLeases" xlink:title="presentation: BelowMarketLeaseAbstract to AmortizationOfAboveAndBelowMarketLeases" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentLineItems" xlink:to="BelowMarketLeaseAbstract" xlink:title="presentation: PropertyPlantAndEquipmentLineItems to BelowMarketLeaseAbstract" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ScheduleOfPropertyPlantAndEquipmentTable" xlink:to="PropertyPlantAndEquipmentLineItems" xlink:title="presentation: ScheduleOfPropertyPlantAndEquipmentTable to PropertyPlantAndEquipmentLineItems" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="OtherLiabilitiesDisclosureAbstract" xlink:to="ScheduleOfPropertyPlantAndEquipmentTable" xlink:title="presentation: OtherLiabilitiesDisclosureAbstract to ScheduleOfPropertyPlantAndEquipmentTable" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/VesselsNetAdvancesForVesselAcquisitionNetBookValueDetails">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentAbstract" xlink:label="PropertyPlantAndEquipmentAbstract" xlink:title="PropertyPlantAndEquipmentAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" xlink:label="ScheduleOfPropertyPlantAndEquipmentTable" xlink:title="ScheduleOfPropertyPlantAndEquipmentTable" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:label="PropertyPlantAndEquipmentByTypeAxis" xlink:title="PropertyPlantAndEquipmentByTypeAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:label="PropertyPlantAndEquipmentTypeDomain" xlink:title="PropertyPlantAndEquipmentTypeDomain" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_VesselsMember" xlink:label="VesselsMember" xlink:title="VesselsMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentTypeDomain" xlink:to="VesselsMember" xlink:title="presentation: PropertyPlantAndEquipmentTypeDomain to VesselsMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentByTypeAxis" xlink:to="PropertyPlantAndEquipmentTypeDomain" xlink:title="presentation: PropertyPlantAndEquipmentByTypeAxis to PropertyPlantAndEquipmentTypeDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ScheduleOfPropertyPlantAndEquipmentTable" xlink:to="PropertyPlantAndEquipmentByTypeAxis" xlink:title="presentation: ScheduleOfPropertyPlantAndEquipmentTable to PropertyPlantAndEquipmentByTypeAxis" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentLineItems" xlink:label="PropertyPlantAndEquipmentLineItems" xlink:title="PropertyPlantAndEquipmentLineItems" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_MovementInPropertyPlantAndEquipmentRollForward" xlink:label="MovementInPropertyPlantAndEquipmentRollForward" xlink:title="MovementInPropertyPlantAndEquipmentRollForward" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentGross" xlink:label="PropertyPlantAndEquipmentGross" xlink:title="PropertyPlantAndEquipmentGross" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="MovementInPropertyPlantAndEquipmentRollForward" xlink:to="PropertyPlantAndEquipmentGross" xlink:title="presentation: MovementInPropertyPlantAndEquipmentRollForward to PropertyPlantAndEquipmentGross" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentAdditions" xlink:label="PropertyPlantAndEquipmentAdditions" xlink:title="PropertyPlantAndEquipmentAdditions" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="MovementInPropertyPlantAndEquipmentRollForward" xlink:to="PropertyPlantAndEquipmentAdditions" xlink:title="presentation: MovementInPropertyPlantAndEquipmentRollForward to PropertyPlantAndEquipmentAdditions" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTransfersAndChanges" xlink:label="PropertyPlantAndEquipmentTransfersAndChanges" xlink:title="PropertyPlantAndEquipmentTransfersAndChanges" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="MovementInPropertyPlantAndEquipmentRollForward" xlink:to="PropertyPlantAndEquipmentTransfersAndChanges" xlink:title="presentation: MovementInPropertyPlantAndEquipmentRollForward to PropertyPlantAndEquipmentTransfersAndChanges" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentGross" xlink:label="PropertyPlantAndEquipmentGross_2" xlink:title="PropertyPlantAndEquipmentGross" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="MovementInPropertyPlantAndEquipmentRollForward" xlink:to="PropertyPlantAndEquipmentGross_2" xlink:title="presentation: MovementInPropertyPlantAndEquipmentRollForward to PropertyPlantAndEquipmentGross" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentLineItems" xlink:to="MovementInPropertyPlantAndEquipmentRollForward" xlink:title="presentation: PropertyPlantAndEquipmentLineItems to MovementInPropertyPlantAndEquipmentRollForward" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_MovementInAccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipmentRollForward" xlink:label="MovementInAccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipmentRollForward" xlink:title="MovementInAccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipmentRollForward" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:label="AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:title="AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="MovementInAccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipmentRollForward" xlink:to="AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:title="presentation: MovementInAccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipmentRollForward to AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" order="0.0" preferredLabel="http://www.xbrl.org/2009/role/negatedPeriodStartLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_Depreciation" xlink:label="Depreciation" xlink:title="Depreciation" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="MovementInAccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipmentRollForward" xlink:to="Depreciation" xlink:title="presentation: MovementInAccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipmentRollForward to Depreciation" order="1.0" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:label="AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_2" xlink:title="AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="MovementInAccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipmentRollForward" xlink:to="AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_2" xlink:title="presentation: MovementInAccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipmentRollForward to AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" order="2.0" preferredLabel="http://www.xbrl.org/2009/role/negatedPeriodEndLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentLineItems" xlink:to="MovementInAccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipmentRollForward" xlink:title="presentation: PropertyPlantAndEquipmentLineItems to MovementInAccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipmentRollForward" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNetByTypeAbstract" xlink:label="PropertyPlantAndEquipmentNetByTypeAbstract" xlink:title="PropertyPlantAndEquipmentNetByTypeAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="PropertyPlantAndEquipmentNet" xlink:title="PropertyPlantAndEquipmentNet" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentNetByTypeAbstract" xlink:to="PropertyPlantAndEquipmentNet" xlink:title="presentation: PropertyPlantAndEquipmentNetByTypeAbstract to PropertyPlantAndEquipmentNet" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="PropertyPlantAndEquipmentNet_2" xlink:title="PropertyPlantAndEquipmentNet" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentNetByTypeAbstract" xlink:to="PropertyPlantAndEquipmentNet_2" xlink:title="presentation: PropertyPlantAndEquipmentNetByTypeAbstract to PropertyPlantAndEquipmentNet" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentLineItems" xlink:to="PropertyPlantAndEquipmentNetByTypeAbstract" xlink:title="presentation: PropertyPlantAndEquipmentLineItems to PropertyPlantAndEquipmentNetByTypeAbstract" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ScheduleOfPropertyPlantAndEquipmentTable" xlink:to="PropertyPlantAndEquipmentLineItems" xlink:title="presentation: ScheduleOfPropertyPlantAndEquipmentTable to PropertyPlantAndEquipmentLineItems" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentAbstract" xlink:to="ScheduleOfPropertyPlantAndEquipmentTable" xlink:title="presentation: PropertyPlantAndEquipmentAbstract to ScheduleOfPropertyPlantAndEquipmentTable" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/VesselsNetAdvancesForVesselAcquisitionVesselAcquisitionsAndOtherCapitalExpendituresDetails">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentAbstract" xlink:label="PropertyPlantAndEquipmentAbstract" xlink:title="PropertyPlantAndEquipmentAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" xlink:label="ScheduleOfPropertyPlantAndEquipmentTable" xlink:title="ScheduleOfPropertyPlantAndEquipmentTable" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:label="PropertyPlantAndEquipmentByTypeAxis" xlink:title="PropertyPlantAndEquipmentByTypeAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:label="PropertyPlantAndEquipmentTypeDomain" xlink:title="PropertyPlantAndEquipmentTypeDomain" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_DryBulkCarrierMember" xlink:label="DryBulkCarrierMember" xlink:title="DryBulkCarrierMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentTypeDomain" xlink:to="DryBulkCarrierMember" xlink:title="presentation: PropertyPlantAndEquipmentTypeDomain to DryBulkCarrierMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_TankerMember" xlink:label="TankerMember" xlink:title="TankerMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentTypeDomain" xlink:to="TankerMember" xlink:title="presentation: PropertyPlantAndEquipmentTypeDomain to TankerMember" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_VesselAcquisitions2020Member" xlink:label="VesselAcquisitions2020Member" xlink:title="VesselAcquisitions2020Member" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_MagicRainbowMember" xlink:label="MagicRainbowMember" xlink:title="MagicRainbowMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="VesselAcquisitions2020Member" xlink:to="MagicRainbowMember" xlink:title="presentation: VesselAcquisitions2020Member to MagicRainbowMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_MagicHorizonMember" xlink:label="MagicHorizonMember" xlink:title="MagicHorizonMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="VesselAcquisitions2020Member" xlink:to="MagicHorizonMember" xlink:title="presentation: VesselAcquisitions2020Member to MagicHorizonMember" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_MagicNovaMember" xlink:label="MagicNovaMember" xlink:title="MagicNovaMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="VesselAcquisitions2020Member" xlink:to="MagicNovaMember" xlink:title="presentation: VesselAcquisitions2020Member to MagicNovaMember" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentTypeDomain" xlink:to="VesselAcquisitions2020Member" xlink:title="presentation: PropertyPlantAndEquipmentTypeDomain to VesselAcquisitions2020Member" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_VesselAcquisitions2021Member" xlink:label="VesselAcquisitions2021Member" xlink:title="VesselAcquisitions2021Member" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_MagicVenusMember" xlink:label="MagicVenusMember" xlink:title="MagicVenusMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="VesselAcquisitions2021Member" xlink:to="MagicVenusMember" xlink:title="presentation: VesselAcquisitions2021Member to MagicVenusMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_WonderPolarisMember" xlink:label="WonderPolarisMember" xlink:title="WonderPolarisMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="VesselAcquisitions2021Member" xlink:to="WonderPolarisMember" xlink:title="presentation: VesselAcquisitions2021Member to WonderPolarisMember" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_MagicOrionMember" xlink:label="MagicOrionMember" xlink:title="MagicOrionMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="VesselAcquisitions2021Member" xlink:to="MagicOrionMember" xlink:title="presentation: VesselAcquisitions2021Member to MagicOrionMember" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_MagicArgoMember" xlink:label="MagicArgoMember" xlink:title="MagicArgoMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="VesselAcquisitions2021Member" xlink:to="MagicArgoMember" xlink:title="presentation: VesselAcquisitions2021Member to MagicArgoMember" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_WonderSiriusMember" xlink:label="WonderSiriusMember" xlink:title="WonderSiriusMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="VesselAcquisitions2021Member" xlink:to="WonderSiriusMember" xlink:title="presentation: VesselAcquisitions2021Member to WonderSiriusMember" order="4.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_MagicTwilightMember" xlink:label="MagicTwilightMember" xlink:title="MagicTwilightMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="VesselAcquisitions2021Member" xlink:to="MagicTwilightMember" xlink:title="presentation: VesselAcquisitions2021Member to MagicTwilightMember" order="5.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_MagicThunderMember" xlink:label="MagicThunderMember" xlink:title="MagicThunderMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="VesselAcquisitions2021Member" xlink:to="MagicThunderMember" xlink:title="presentation: VesselAcquisitions2021Member to MagicThunderMember" order="6.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_MagicVelaMember" xlink:label="MagicVelaMember" xlink:title="MagicVelaMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="VesselAcquisitions2021Member" xlink:to="MagicVelaMember" xlink:title="presentation: VesselAcquisitions2021Member to MagicVelaMember" order="7.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_MagicNebulaMember" xlink:label="MagicNebulaMember" xlink:title="MagicNebulaMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="VesselAcquisitions2021Member" xlink:to="MagicNebulaMember" xlink:title="presentation: VesselAcquisitions2021Member to MagicNebulaMember" order="8.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_WonderVegaMember" xlink:label="WonderVegaMember" xlink:title="WonderVegaMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="VesselAcquisitions2021Member" xlink:to="WonderVegaMember" xlink:title="presentation: VesselAcquisitions2021Member to WonderVegaMember" order="9.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_MagicStarlightMember" xlink:label="MagicStarlightMember" xlink:title="MagicStarlightMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="VesselAcquisitions2021Member" xlink:to="MagicStarlightMember" xlink:title="presentation: VesselAcquisitions2021Member to MagicStarlightMember" order="10.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_WonderAviorMember" xlink:label="WonderAviorMember" xlink:title="WonderAviorMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="VesselAcquisitions2021Member" xlink:to="WonderAviorMember" xlink:title="presentation: VesselAcquisitions2021Member to WonderAviorMember" order="11.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_WonderArcturusMember" xlink:label="WonderArcturusMember" xlink:title="WonderArcturusMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="VesselAcquisitions2021Member" xlink:to="WonderArcturusMember" xlink:title="presentation: VesselAcquisitions2021Member to WonderArcturusMember" order="12.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_WonderMimosaMember" xlink:label="WonderMimosaMember" xlink:title="WonderMimosaMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="VesselAcquisitions2021Member" xlink:to="WonderMimosaMember" xlink:title="presentation: VesselAcquisitions2021Member to WonderMimosaMember" order="13.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_MagicEclipseMember" xlink:label="MagicEclipseMember" xlink:title="MagicEclipseMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="VesselAcquisitions2021Member" xlink:to="MagicEclipseMember" xlink:title="presentation: VesselAcquisitions2021Member to MagicEclipseMember" order="14.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_WonderMusicaMember" xlink:label="WonderMusicaMember" xlink:title="WonderMusicaMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="VesselAcquisitions2021Member" xlink:to="WonderMusicaMember" xlink:title="presentation: VesselAcquisitions2021Member to WonderMusicaMember" order="15.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_WonderFormosaMember" xlink:label="WonderFormosaMember" xlink:title="WonderFormosaMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="VesselAcquisitions2021Member" xlink:to="WonderFormosaMember" xlink:title="presentation: VesselAcquisitions2021Member to WonderFormosaMember" order="16.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_MagicPlutoMember" xlink:label="MagicPlutoMember" xlink:title="MagicPlutoMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="VesselAcquisitions2021Member" xlink:to="MagicPlutoMember" xlink:title="presentation: VesselAcquisitions2021Member to MagicPlutoMember" order="17.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_MagicPerseusMember" xlink:label="MagicPerseusMember" xlink:title="MagicPerseusMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="VesselAcquisitions2021Member" xlink:to="MagicPerseusMember" xlink:title="presentation: VesselAcquisitions2021Member to MagicPerseusMember" order="18.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_MagicMarsMember" xlink:label="MagicMarsMember" xlink:title="MagicMarsMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="VesselAcquisitions2021Member" xlink:to="MagicMarsMember" xlink:title="presentation: VesselAcquisitions2021Member to MagicMarsMember" order="19.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_MagicPhoenixMember" xlink:label="MagicPhoenixMember" xlink:title="MagicPhoenixMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="VesselAcquisitions2021Member" xlink:to="MagicPhoenixMember" xlink:title="presentation: VesselAcquisitions2021Member to MagicPhoenixMember" order="20.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_WonderBellatrixMember" xlink:label="WonderBellatrixMember" xlink:title="WonderBellatrixMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="VesselAcquisitions2021Member" xlink:to="WonderBellatrixMember" xlink:title="presentation: VesselAcquisitions2021Member to WonderBellatrixMember" order="21.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentTypeDomain" xlink:to="VesselAcquisitions2021Member" xlink:title="presentation: PropertyPlantAndEquipmentTypeDomain to VesselAcquisitions2021Member" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_WonderMimosaAndMagicVelaMember" xlink:label="WonderMimosaAndMagicVelaMember" xlink:title="WonderMimosaAndMagicVelaMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentTypeDomain" xlink:to="WonderMimosaAndMagicVelaMember" xlink:title="presentation: PropertyPlantAndEquipmentTypeDomain to WonderMimosaAndMagicVelaMember" order="4.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_MagicPAndMagicSunMember" xlink:label="MagicPAndMagicSunMember" xlink:title="MagicPAndMagicSunMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentTypeDomain" xlink:to="MagicPAndMagicSunMember" xlink:title="presentation: PropertyPlantAndEquipmentTypeDomain to MagicPAndMagicSunMember" order="5.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_VesselsMortgagedAsCollateralMember" xlink:label="VesselsMortgagedAsCollateralMember" xlink:title="VesselsMortgagedAsCollateralMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentTypeDomain" xlink:to="VesselsMortgagedAsCollateralMember" xlink:title="presentation: PropertyPlantAndEquipmentTypeDomain to VesselsMortgagedAsCollateralMember" order="6.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentByTypeAxis" xlink:to="PropertyPlantAndEquipmentTypeDomain" xlink:title="presentation: PropertyPlantAndEquipmentByTypeAxis to PropertyPlantAndEquipmentTypeDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ScheduleOfPropertyPlantAndEquipmentTable" xlink:to="PropertyPlantAndEquipmentByTypeAxis" xlink:title="presentation: ScheduleOfPropertyPlantAndEquipmentTable to PropertyPlantAndEquipmentByTypeAxis" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentLineItems" xlink:label="PropertyPlantAndEquipmentLineItems" xlink:title="PropertyPlantAndEquipmentLineItems" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNetAbstract" xlink:label="PropertyPlantAndEquipmentNetAbstract" xlink:title="PropertyPlantAndEquipmentNetAbstract" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_NumberOfVesselsToBeAcquired" xlink:label="NumberOfVesselsToBeAcquired" xlink:title="NumberOfVesselsToBeAcquired" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentNetAbstract" xlink:to="NumberOfVesselsToBeAcquired" xlink:title="presentation: PropertyPlantAndEquipmentNetAbstract to NumberOfVesselsToBeAcquired" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_NumberOfVesselsAcquired" xlink:label="NumberOfVesselsAcquired" xlink:title="NumberOfVesselsAcquired" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentNetAbstract" xlink:to="NumberOfVesselsAcquired" xlink:title="presentation: PropertyPlantAndEquipmentNetAbstract to NumberOfVesselsAcquired" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_VesselName" xlink:label="VesselName" xlink:title="VesselName" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentNetAbstract" xlink:to="VesselName" xlink:title="presentation: PropertyPlantAndEquipmentNetAbstract to VesselName" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_VesselType" xlink:label="VesselType" xlink:title="VesselType" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentNetAbstract" xlink:to="VesselType" xlink:title="presentation: PropertyPlantAndEquipmentNetAbstract to VesselType" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_VesselDeadWeightTonnage" xlink:label="VesselDeadWeightTonnage" xlink:title="VesselDeadWeightTonnage" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentNetAbstract" xlink:to="VesselDeadWeightTonnage" xlink:title="presentation: PropertyPlantAndEquipmentNetAbstract to VesselDeadWeightTonnage" order="4.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_VesselYearBuilt" xlink:label="VesselYearBuilt" xlink:title="VesselYearBuilt" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentNetAbstract" xlink:to="VesselYearBuilt" xlink:title="presentation: PropertyPlantAndEquipmentNetAbstract to VesselYearBuilt" order="5.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_VesselCountryOfConstruction" xlink:label="VesselCountryOfConstruction" xlink:title="VesselCountryOfConstruction" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentNetAbstract" xlink:to="VesselCountryOfConstruction" xlink:title="presentation: PropertyPlantAndEquipmentNetAbstract to VesselCountryOfConstruction" order="6.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentAdditions" xlink:label="PropertyPlantAndEquipmentAdditions" xlink:title="PropertyPlantAndEquipmentAdditions" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentNetAbstract" xlink:to="PropertyPlantAndEquipmentAdditions" xlink:title="presentation: PropertyPlantAndEquipmentNetAbstract to PropertyPlantAndEquipmentAdditions" order="7.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_VesselDeliveryDate" xlink:label="VesselDeliveryDate" xlink:title="VesselDeliveryDate" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentNetAbstract" xlink:to="VesselDeliveryDate" xlink:title="presentation: PropertyPlantAndEquipmentNetAbstract to VesselDeliveryDate" order="8.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_NumberOfVesselsMortgagedAsCollateral" xlink:label="NumberOfVesselsMortgagedAsCollateral" xlink:title="NumberOfVesselsMortgagedAsCollateral" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentNetAbstract" xlink:to="NumberOfVesselsMortgagedAsCollateral" xlink:title="presentation: PropertyPlantAndEquipmentNetAbstract to NumberOfVesselsMortgagedAsCollateral" order="9.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_NumberOfVessels" xlink:label="NumberOfVessels" xlink:title="NumberOfVessels" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentNetAbstract" xlink:to="NumberOfVessels" xlink:title="presentation: PropertyPlantAndEquipmentNetAbstract to NumberOfVessels" order="10.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="PropertyPlantAndEquipmentNet" xlink:title="PropertyPlantAndEquipmentNet" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentNetAbstract" xlink:to="PropertyPlantAndEquipmentNet" xlink:title="presentation: PropertyPlantAndEquipmentNetAbstract to PropertyPlantAndEquipmentNet" order="11.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentLineItems" xlink:to="PropertyPlantAndEquipmentNetAbstract" xlink:title="presentation: PropertyPlantAndEquipmentLineItems to PropertyPlantAndEquipmentNetAbstract" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ScheduleOfPropertyPlantAndEquipmentTable" xlink:to="PropertyPlantAndEquipmentLineItems" xlink:title="presentation: ScheduleOfPropertyPlantAndEquipmentTable to PropertyPlantAndEquipmentLineItems" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentAbstract" xlink:to="ScheduleOfPropertyPlantAndEquipmentTable" xlink:title="presentation: PropertyPlantAndEquipmentAbstract to ScheduleOfPropertyPlantAndEquipmentTable" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/VesselsNetAdvancesForVesselAcquisitionAdvancesForVesselAcquisitionDetails">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentAbstract" xlink:label="PropertyPlantAndEquipmentAbstract" xlink:title="PropertyPlantAndEquipmentAbstract" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_AdvancesForVesselAcquisitions" xlink:label="AdvancesForVesselAcquisitions" xlink:title="AdvancesForVesselAcquisitions" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentAbstract" xlink:to="AdvancesForVesselAcquisitions" xlink:title="presentation: PropertyPlantAndEquipmentAbstract to AdvancesForVesselAcquisitions" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_AdvancesForVesselAcquisitionsAndOtherVesselPreDeliveryCosts" xlink:label="AdvancesForVesselAcquisitionsAndOtherVesselPreDeliveryCosts" xlink:title="AdvancesForVesselAcquisitionsAndOtherVesselPreDeliveryCosts" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentAbstract" xlink:to="AdvancesForVesselAcquisitionsAndOtherVesselPreDeliveryCosts" xlink:title="presentation: PropertyPlantAndEquipmentAbstract to AdvancesForVesselAcquisitionsAndOtherVesselPreDeliveryCosts" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_AdvancesTransferToVesselsNet" xlink:label="AdvancesTransferToVesselsNet" xlink:title="AdvancesTransferToVesselsNet" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentAbstract" xlink:to="AdvancesTransferToVesselsNet" xlink:title="presentation: PropertyPlantAndEquipmentAbstract to AdvancesTransferToVesselsNet" order="2.0" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_AdvancesForVesselAcquisitions" xlink:label="AdvancesForVesselAcquisitions_2" xlink:title="AdvancesForVesselAcquisitions" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentAbstract" xlink:to="AdvancesForVesselAcquisitions_2" xlink:title="presentation: PropertyPlantAndEquipmentAbstract to AdvancesForVesselAcquisitions" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/LongtermDebtLongtermDebtIncludingRelatedPartyDebtDetails">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtDisclosureAbstract" xlink:label="DebtDisclosureAbstract" xlink:title="DebtDisclosureAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentTable" xlink:label="DebtInstrumentTable" xlink:title="DebtInstrumentTable" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentAxis" xlink:label="DebtInstrumentAxis" xlink:title="DebtInstrumentAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentNameDomain" xlink:label="DebtInstrumentNameDomain" xlink:title="DebtInstrumentNameDomain" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_SeniorSecuredTeamLoanFacilityAlphaBankSA2019Member" xlink:label="SeniorSecuredTeamLoanFacilityAlphaBankSA2019Member" xlink:title="SeniorSecuredTeamLoanFacilityAlphaBankSA2019Member" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentNameDomain" xlink:to="SeniorSecuredTeamLoanFacilityAlphaBankSA2019Member" xlink:title="presentation: DebtInstrumentNameDomain to SeniorSecuredTeamLoanFacilityAlphaBankSA2019Member" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_SeniorSecuredTeamLoanFacilityChaileaseInternationalInternationalFinancialServicesCoLtdMember" xlink:label="SeniorSecuredTeamLoanFacilityChaileaseInternationalInternationalFinancialServicesCoLtdMember" xlink:title="SeniorSecuredTeamLoanFacilityChaileaseInternationalInternationalFinancialServicesCoLtdMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentNameDomain" xlink:to="SeniorSecuredTeamLoanFacilityChaileaseInternationalInternationalFinancialServicesCoLtdMember" xlink:title="presentation: DebtInstrumentNameDomain to SeniorSecuredTeamLoanFacilityChaileaseInternationalInternationalFinancialServicesCoLtdMember" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_SeniorSecuredTeamLoanFacilityHamburgCommercialBankAGJanuary2021Member" xlink:label="SeniorSecuredTeamLoanFacilityHamburgCommercialBankAGJanuary2021Member" xlink:title="SeniorSecuredTeamLoanFacilityHamburgCommercialBankAGJanuary2021Member" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentNameDomain" xlink:to="SeniorSecuredTeamLoanFacilityHamburgCommercialBankAGJanuary2021Member" xlink:title="presentation: DebtInstrumentNameDomain to SeniorSecuredTeamLoanFacilityHamburgCommercialBankAGJanuary2021Member" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_SeniorSecuredTeamLoanFacilityAlphaBankSA2021Member" xlink:label="SeniorSecuredTeamLoanFacilityAlphaBankSA2021Member" xlink:title="SeniorSecuredTeamLoanFacilityAlphaBankSA2021Member" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentNameDomain" xlink:to="SeniorSecuredTeamLoanFacilityAlphaBankSA2021Member" xlink:title="presentation: DebtInstrumentNameDomain to SeniorSecuredTeamLoanFacilityAlphaBankSA2021Member" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_SeniorSecuredTeamLoanFacilityHamburgCommercialBankAGJuly2021Member" xlink:label="SeniorSecuredTeamLoanFacilityHamburgCommercialBankAGJuly2021Member" xlink:title="SeniorSecuredTeamLoanFacilityHamburgCommercialBankAGJuly2021Member" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentNameDomain" xlink:to="SeniorSecuredTeamLoanFacilityHamburgCommercialBankAGJuly2021Member" xlink:title="presentation: DebtInstrumentNameDomain to SeniorSecuredTeamLoanFacilityHamburgCommercialBankAGJuly2021Member" order="4.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_SeniorSecuredTeamLoanFacilityChaileaseInternationalFinancialServicesSingaporePteLtdMember" xlink:label="SeniorSecuredTeamLoanFacilityChaileaseInternationalFinancialServicesSingaporePteLtdMember" xlink:title="SeniorSecuredTeamLoanFacilityChaileaseInternationalFinancialServicesSingaporePteLtdMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentNameDomain" xlink:to="SeniorSecuredTeamLoanFacilityChaileaseInternationalFinancialServicesSingaporePteLtdMember" xlink:title="presentation: DebtInstrumentNameDomain to SeniorSecuredTeamLoanFacilityChaileaseInternationalFinancialServicesSingaporePteLtdMember" order="5.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_TermLoanFacilityMember" xlink:label="TermLoanFacilityMember" xlink:title="TermLoanFacilityMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentNameDomain" xlink:to="TermLoanFacilityMember" xlink:title="presentation: DebtInstrumentNameDomain to TermLoanFacilityMember" order="6.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentAxis" xlink:to="DebtInstrumentNameDomain" xlink:title="presentation: DebtInstrumentAxis to DebtInstrumentNameDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentTable" xlink:to="DebtInstrumentAxis" xlink:title="presentation: DebtInstrumentTable to DebtInstrumentAxis" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:label="RelatedPartyTransactionsByRelatedPartyAxis" xlink:title="RelatedPartyTransactionsByRelatedPartyAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RelatedPartyDomain" xlink:label="RelatedPartyDomain" xlink:title="RelatedPartyDomain" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_ThalassaInvestmentCoSAMember" xlink:label="ThalassaInvestmentCoSAMember" xlink:title="ThalassaInvestmentCoSAMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyDomain" xlink:to="ThalassaInvestmentCoSAMember" xlink:title="presentation: RelatedPartyDomain to ThalassaInvestmentCoSAMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RelatedPartyTransactionsByRelatedPartyAxis" xlink:to="RelatedPartyDomain" xlink:title="presentation: RelatedPartyTransactionsByRelatedPartyAxis to RelatedPartyDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentTable" xlink:to="RelatedPartyTransactionsByRelatedPartyAxis" xlink:title="presentation: DebtInstrumentTable to RelatedPartyTransactionsByRelatedPartyAxis" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentLineItems" xlink:label="DebtInstrumentLineItems" xlink:title="DebtInstrumentLineItems" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentsAbstract" xlink:label="DebtInstrumentsAbstract" xlink:title="DebtInstrumentsAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentFaceAmount" xlink:label="DebtInstrumentFaceAmount" xlink:title="DebtInstrumentFaceAmount" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentsAbstract" xlink:to="DebtInstrumentFaceAmount" xlink:title="presentation: DebtInstrumentsAbstract to DebtInstrumentFaceAmount" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentIssuer" xlink:label="DebtInstrumentIssuer" xlink:title="DebtInstrumentIssuer" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentsAbstract" xlink:to="DebtInstrumentIssuer" xlink:title="presentation: DebtInstrumentsAbstract to DebtInstrumentIssuer" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentCarryingAmount" xlink:label="DebtInstrumentCarryingAmount" xlink:title="DebtInstrumentCarryingAmount" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentsAbstract" xlink:to="DebtInstrumentCarryingAmount" xlink:title="presentation: DebtInstrumentsAbstract to DebtInstrumentCarryingAmount" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredFinanceCostsNet" xlink:label="DeferredFinanceCostsNet" xlink:title="DeferredFinanceCostsNet" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentsAbstract" xlink:to="DeferredFinanceCostsNet" xlink:title="presentation: DebtInstrumentsAbstract to DeferredFinanceCostsNet" order="3.0" preferredLabel="http://www.xbrl.org/2009/role/negatedTotalLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LongTermDebt" xlink:label="LongTermDebt" xlink:title="LongTermDebt" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentsAbstract" xlink:to="LongTermDebt" xlink:title="presentation: DebtInstrumentsAbstract to LongTermDebt" order="4.0" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentLineItems" xlink:to="DebtInstrumentsAbstract" xlink:title="presentation: DebtInstrumentLineItems to DebtInstrumentsAbstract" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LongTermDebtByCurrentAndNoncurrentAbstract" xlink:label="LongTermDebtByCurrentAndNoncurrentAbstract" xlink:title="LongTermDebtByCurrentAndNoncurrentAbstract" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_LongTermDebtGrossCurrent" xlink:label="LongTermDebtGrossCurrent" xlink:title="LongTermDebtGrossCurrent" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="LongTermDebtByCurrentAndNoncurrentAbstract" xlink:to="LongTermDebtGrossCurrent" xlink:title="presentation: LongTermDebtByCurrentAndNoncurrentAbstract to LongTermDebtGrossCurrent" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredFinanceCostsCurrentNet" xlink:label="DeferredFinanceCostsCurrentNet" xlink:title="DeferredFinanceCostsCurrentNet" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="LongTermDebtByCurrentAndNoncurrentAbstract" xlink:to="DeferredFinanceCostsCurrentNet" xlink:title="presentation: LongTermDebtByCurrentAndNoncurrentAbstract to DeferredFinanceCostsCurrentNet" order="1.0" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SecuredDebtCurrent" xlink:label="SecuredDebtCurrent" xlink:title="SecuredDebtCurrent" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="LongTermDebtByCurrentAndNoncurrentAbstract" xlink:to="SecuredDebtCurrent" xlink:title="presentation: LongTermDebtByCurrentAndNoncurrentAbstract to SecuredDebtCurrent" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_LongTermDebtGrossNoncurrent" xlink:label="LongTermDebtGrossNoncurrent" xlink:title="LongTermDebtGrossNoncurrent" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="LongTermDebtByCurrentAndNoncurrentAbstract" xlink:to="LongTermDebtGrossNoncurrent" xlink:title="presentation: LongTermDebtByCurrentAndNoncurrentAbstract to LongTermDebtGrossNoncurrent" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredFinanceCostsNoncurrentNet" xlink:label="DeferredFinanceCostsNoncurrentNet" xlink:title="DeferredFinanceCostsNoncurrentNet" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="LongTermDebtByCurrentAndNoncurrentAbstract" xlink:to="DeferredFinanceCostsNoncurrentNet" xlink:title="presentation: LongTermDebtByCurrentAndNoncurrentAbstract to DeferredFinanceCostsNoncurrentNet" order="4.0" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SecuredLongTermDebt" xlink:label="SecuredLongTermDebt" xlink:title="SecuredLongTermDebt" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="LongTermDebtByCurrentAndNoncurrentAbstract" xlink:to="SecuredLongTermDebt" xlink:title="presentation: LongTermDebtByCurrentAndNoncurrentAbstract to SecuredLongTermDebt" order="5.0" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NotesPayableRelatedPartiesClassifiedCurrent" xlink:label="NotesPayableRelatedPartiesClassifiedCurrent" xlink:title="NotesPayableRelatedPartiesClassifiedCurrent" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="LongTermDebtByCurrentAndNoncurrentAbstract" xlink:to="NotesPayableRelatedPartiesClassifiedCurrent" xlink:title="presentation: LongTermDebtByCurrentAndNoncurrentAbstract to NotesPayableRelatedPartiesClassifiedCurrent" order="6.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentLineItems" xlink:to="LongTermDebtByCurrentAndNoncurrentAbstract" xlink:title="presentation: DebtInstrumentLineItems to LongTermDebtByCurrentAndNoncurrentAbstract" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentTable" xlink:to="DebtInstrumentLineItems" xlink:title="presentation: DebtInstrumentTable to DebtInstrumentLineItems" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtDisclosureAbstract" xlink:to="DebtInstrumentTable" xlink:title="presentation: DebtDisclosureAbstract to DebtInstrumentTable" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/LongtermDebt110MillionTermLoanFacilityDetails">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtDisclosureAbstract" xlink:label="DebtDisclosureAbstract" xlink:title="DebtDisclosureAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentTable" xlink:label="DebtInstrumentTable" xlink:title="DebtInstrumentTable" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentAxis" xlink:label="DebtInstrumentAxis" xlink:title="DebtInstrumentAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentNameDomain" xlink:label="DebtInstrumentNameDomain" xlink:title="DebtInstrumentNameDomain" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_SeniorSecuredTeamLoanFacilityAlphaBankSA2019Member" xlink:label="SeniorSecuredTeamLoanFacilityAlphaBankSA2019Member" xlink:title="SeniorSecuredTeamLoanFacilityAlphaBankSA2019Member" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentNameDomain" xlink:to="SeniorSecuredTeamLoanFacilityAlphaBankSA2019Member" xlink:title="presentation: DebtInstrumentNameDomain to SeniorSecuredTeamLoanFacilityAlphaBankSA2019Member" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_BridgeLoan75MillionMember" xlink:label="BridgeLoan75MillionMember" xlink:title="BridgeLoan75MillionMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentNameDomain" xlink:to="BridgeLoan75MillionMember" xlink:title="presentation: DebtInstrumentNameDomain to BridgeLoan75MillionMember" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentAxis" xlink:to="DebtInstrumentNameDomain" xlink:title="presentation: DebtInstrumentAxis to DebtInstrumentNameDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentTable" xlink:to="DebtInstrumentAxis" xlink:title="presentation: DebtInstrumentTable to DebtInstrumentAxis" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentLineItems" xlink:label="DebtInstrumentLineItems" xlink:title="DebtInstrumentLineItems" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentsAbstract" xlink:label="DebtInstrumentsAbstract" xlink:title="DebtInstrumentsAbstract" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_NumberOfShipOwningSubsidiariesEnteringIntoTermLoanFacility" xlink:label="NumberOfShipOwningSubsidiariesEnteringIntoTermLoanFacility" xlink:title="NumberOfShipOwningSubsidiariesEnteringIntoTermLoanFacility" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentsAbstract" xlink:to="NumberOfShipOwningSubsidiariesEnteringIntoTermLoanFacility" xlink:title="presentation: DebtInstrumentsAbstract to NumberOfShipOwningSubsidiariesEnteringIntoTermLoanFacility" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentFaceAmount" xlink:label="DebtInstrumentFaceAmount" xlink:title="DebtInstrumentFaceAmount" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentsAbstract" xlink:to="DebtInstrumentFaceAmount" xlink:title="presentation: DebtInstrumentsAbstract to DebtInstrumentFaceAmount" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_DebtInstrumentNumberOfTranches" xlink:label="DebtInstrumentNumberOfTranches" xlink:title="DebtInstrumentNumberOfTranches" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentsAbstract" xlink:to="DebtInstrumentNumberOfTranches" xlink:title="presentation: DebtInstrumentsAbstract to DebtInstrumentNumberOfTranches" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentTerm" xlink:label="DebtInstrumentTerm" xlink:title="DebtInstrumentTerm" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentsAbstract" xlink:to="DebtInstrumentTerm" xlink:title="presentation: DebtInstrumentsAbstract to DebtInstrumentTerm" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_DebtInstrumentNumberOfPaymentInstallments" xlink:label="DebtInstrumentNumberOfPaymentInstallments" xlink:title="DebtInstrumentNumberOfPaymentInstallments" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentsAbstract" xlink:to="DebtInstrumentNumberOfPaymentInstallments" xlink:title="presentation: DebtInstrumentsAbstract to DebtInstrumentNumberOfPaymentInstallments" order="4.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentFrequencyOfPeriodicPayment" xlink:label="DebtInstrumentFrequencyOfPeriodicPayment" xlink:title="DebtInstrumentFrequencyOfPeriodicPayment" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentsAbstract" xlink:to="DebtInstrumentFrequencyOfPeriodicPayment" xlink:title="presentation: DebtInstrumentsAbstract to DebtInstrumentFrequencyOfPeriodicPayment" order="5.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentPeriodicPayment" xlink:label="DebtInstrumentPeriodicPayment" xlink:title="DebtInstrumentPeriodicPayment" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentsAbstract" xlink:to="DebtInstrumentPeriodicPayment" xlink:title="presentation: DebtInstrumentsAbstract to DebtInstrumentPeriodicPayment" order="6.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentPeriodicPaymentTermsBalloonPaymentToBePaid" xlink:label="DebtInstrumentPeriodicPaymentTermsBalloonPaymentToBePaid" xlink:title="DebtInstrumentPeriodicPaymentTermsBalloonPaymentToBePaid" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentsAbstract" xlink:to="DebtInstrumentPeriodicPaymentTermsBalloonPaymentToBePaid" xlink:title="presentation: DebtInstrumentsAbstract to DebtInstrumentPeriodicPaymentTermsBalloonPaymentToBePaid" order="7.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentMaturityDate" xlink:label="DebtInstrumentMaturityDate" xlink:title="DebtInstrumentMaturityDate" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentsAbstract" xlink:to="DebtInstrumentMaturityDate" xlink:title="presentation: DebtInstrumentsAbstract to DebtInstrumentMaturityDate" order="8.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RepaymentsOfSecuredDebt" xlink:label="RepaymentsOfSecuredDebt" xlink:title="RepaymentsOfSecuredDebt" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentsAbstract" xlink:to="RepaymentsOfSecuredDebt" xlink:title="presentation: DebtInstrumentsAbstract to RepaymentsOfSecuredDebt" order="9.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentLineItems" xlink:to="DebtInstrumentsAbstract" xlink:title="presentation: DebtInstrumentLineItems to DebtInstrumentsAbstract" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentTable" xlink:to="DebtInstrumentLineItems" xlink:title="presentation: DebtInstrumentTable to DebtInstrumentLineItems" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtDisclosureAbstract" xlink:to="DebtInstrumentTable" xlink:title="presentation: DebtDisclosureAbstract to DebtInstrumentTable" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/LongtermDebt45MillionTermLoanFacilityDetails">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtDisclosureAbstract" xlink:label="DebtDisclosureAbstract" xlink:title="DebtDisclosureAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentTable" xlink:label="DebtInstrumentTable" xlink:title="DebtInstrumentTable" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentAxis" xlink:label="DebtInstrumentAxis" xlink:title="DebtInstrumentAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentNameDomain" xlink:label="DebtInstrumentNameDomain" xlink:title="DebtInstrumentNameDomain" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_SeniorSecuredTeamLoanFacilityChaileaseInternationalInternationalFinancialServicesCoLtdMember" xlink:label="SeniorSecuredTeamLoanFacilityChaileaseInternationalInternationalFinancialServicesCoLtdMember" xlink:title="SeniorSecuredTeamLoanFacilityChaileaseInternationalInternationalFinancialServicesCoLtdMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentNameDomain" xlink:to="SeniorSecuredTeamLoanFacilityChaileaseInternationalInternationalFinancialServicesCoLtdMember" xlink:title="presentation: DebtInstrumentNameDomain to SeniorSecuredTeamLoanFacilityChaileaseInternationalInternationalFinancialServicesCoLtdMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentAxis" xlink:to="DebtInstrumentNameDomain" xlink:title="presentation: DebtInstrumentAxis to DebtInstrumentNameDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentTable" xlink:to="DebtInstrumentAxis" xlink:title="presentation: DebtInstrumentTable to DebtInstrumentAxis" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentLineItems" xlink:label="DebtInstrumentLineItems" xlink:title="DebtInstrumentLineItems" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentsAbstract" xlink:label="DebtInstrumentsAbstract" xlink:title="DebtInstrumentsAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentFaceAmount" xlink:label="DebtInstrumentFaceAmount" xlink:title="DebtInstrumentFaceAmount" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentsAbstract" xlink:to="DebtInstrumentFaceAmount" xlink:title="presentation: DebtInstrumentsAbstract to DebtInstrumentFaceAmount" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_DebtInstrumentNumberOfPaymentInstallments" xlink:label="DebtInstrumentNumberOfPaymentInstallments" xlink:title="DebtInstrumentNumberOfPaymentInstallments" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentsAbstract" xlink:to="DebtInstrumentNumberOfPaymentInstallments" xlink:title="presentation: DebtInstrumentsAbstract to DebtInstrumentNumberOfPaymentInstallments" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentFrequencyOfPeriodicPayment" xlink:label="DebtInstrumentFrequencyOfPeriodicPayment" xlink:title="DebtInstrumentFrequencyOfPeriodicPayment" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentsAbstract" xlink:to="DebtInstrumentFrequencyOfPeriodicPayment" xlink:title="presentation: DebtInstrumentsAbstract to DebtInstrumentFrequencyOfPeriodicPayment" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentPeriodicPayment" xlink:label="DebtInstrumentPeriodicPayment" xlink:title="DebtInstrumentPeriodicPayment" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentsAbstract" xlink:to="DebtInstrumentPeriodicPayment" xlink:title="presentation: DebtInstrumentsAbstract to DebtInstrumentPeriodicPayment" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentPeriodicPaymentTermsBalloonPaymentToBePaid" xlink:label="DebtInstrumentPeriodicPaymentTermsBalloonPaymentToBePaid" xlink:title="DebtInstrumentPeriodicPaymentTermsBalloonPaymentToBePaid" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentsAbstract" xlink:to="DebtInstrumentPeriodicPaymentTermsBalloonPaymentToBePaid" xlink:title="presentation: DebtInstrumentsAbstract to DebtInstrumentPeriodicPaymentTermsBalloonPaymentToBePaid" order="4.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentLineItems" xlink:to="DebtInstrumentsAbstract" xlink:title="presentation: DebtInstrumentLineItems to DebtInstrumentsAbstract" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentTable" xlink:to="DebtInstrumentLineItems" xlink:title="presentation: DebtInstrumentTable to DebtInstrumentLineItems" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtDisclosureAbstract" xlink:to="DebtInstrumentTable" xlink:title="presentation: DebtDisclosureAbstract to DebtInstrumentTable" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/LongtermDebt1529MillionTermLoanFacilityDetails">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtDisclosureAbstract" xlink:label="DebtDisclosureAbstract" xlink:title="DebtDisclosureAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentTable" xlink:label="DebtInstrumentTable" xlink:title="DebtInstrumentTable" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentAxis" xlink:label="DebtInstrumentAxis" xlink:title="DebtInstrumentAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentNameDomain" xlink:label="DebtInstrumentNameDomain" xlink:title="DebtInstrumentNameDomain" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_SeniorSecuredTeamLoanFacilityHamburgCommercialBankAGJanuary2021Member" xlink:label="SeniorSecuredTeamLoanFacilityHamburgCommercialBankAGJanuary2021Member" xlink:title="SeniorSecuredTeamLoanFacilityHamburgCommercialBankAGJanuary2021Member" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentNameDomain" xlink:to="SeniorSecuredTeamLoanFacilityHamburgCommercialBankAGJanuary2021Member" xlink:title="presentation: DebtInstrumentNameDomain to SeniorSecuredTeamLoanFacilityHamburgCommercialBankAGJanuary2021Member" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentAxis" xlink:to="DebtInstrumentNameDomain" xlink:title="presentation: DebtInstrumentAxis to DebtInstrumentNameDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentTable" xlink:to="DebtInstrumentAxis" xlink:title="presentation: DebtInstrumentTable to DebtInstrumentAxis" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentLineItems" xlink:label="DebtInstrumentLineItems" xlink:title="DebtInstrumentLineItems" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentsAbstract" xlink:label="DebtInstrumentsAbstract" xlink:title="DebtInstrumentsAbstract" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_NumberOfShipOwningSubsidiariesEnteringIntoTermLoanFacility" xlink:label="NumberOfShipOwningSubsidiariesEnteringIntoTermLoanFacility" xlink:title="NumberOfShipOwningSubsidiariesEnteringIntoTermLoanFacility" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentsAbstract" xlink:to="NumberOfShipOwningSubsidiariesEnteringIntoTermLoanFacility" xlink:title="presentation: DebtInstrumentsAbstract to NumberOfShipOwningSubsidiariesEnteringIntoTermLoanFacility" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentFaceAmount" xlink:label="DebtInstrumentFaceAmount" xlink:title="DebtInstrumentFaceAmount" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentsAbstract" xlink:to="DebtInstrumentFaceAmount" xlink:title="presentation: DebtInstrumentsAbstract to DebtInstrumentFaceAmount" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_DebtInstrumentNumberOfTranches" xlink:label="DebtInstrumentNumberOfTranches" xlink:title="DebtInstrumentNumberOfTranches" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentsAbstract" xlink:to="DebtInstrumentNumberOfTranches" xlink:title="presentation: DebtInstrumentsAbstract to DebtInstrumentNumberOfTranches" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_DebtInstrumentNumberOfPaymentInstallments" xlink:label="DebtInstrumentNumberOfPaymentInstallments" xlink:title="DebtInstrumentNumberOfPaymentInstallments" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentsAbstract" xlink:to="DebtInstrumentNumberOfPaymentInstallments" xlink:title="presentation: DebtInstrumentsAbstract to DebtInstrumentNumberOfPaymentInstallments" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentFrequencyOfPeriodicPayment" xlink:label="DebtInstrumentFrequencyOfPeriodicPayment" xlink:title="DebtInstrumentFrequencyOfPeriodicPayment" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentsAbstract" xlink:to="DebtInstrumentFrequencyOfPeriodicPayment" xlink:title="presentation: DebtInstrumentsAbstract to DebtInstrumentFrequencyOfPeriodicPayment" order="4.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentPeriodicPayment" xlink:label="DebtInstrumentPeriodicPayment" xlink:title="DebtInstrumentPeriodicPayment" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentsAbstract" xlink:to="DebtInstrumentPeriodicPayment" xlink:title="presentation: DebtInstrumentsAbstract to DebtInstrumentPeriodicPayment" order="5.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentPeriodicPaymentTermsBalloonPaymentToBePaid" xlink:label="DebtInstrumentPeriodicPaymentTermsBalloonPaymentToBePaid" xlink:title="DebtInstrumentPeriodicPaymentTermsBalloonPaymentToBePaid" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentsAbstract" xlink:to="DebtInstrumentPeriodicPaymentTermsBalloonPaymentToBePaid" xlink:title="presentation: DebtInstrumentsAbstract to DebtInstrumentPeriodicPaymentTermsBalloonPaymentToBePaid" order="6.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentLineItems" xlink:to="DebtInstrumentsAbstract" xlink:title="presentation: DebtInstrumentLineItems to DebtInstrumentsAbstract" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentTable" xlink:to="DebtInstrumentLineItems" xlink:title="presentation: DebtInstrumentTable to DebtInstrumentLineItems" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtDisclosureAbstract" xlink:to="DebtInstrumentTable" xlink:title="presentation: DebtDisclosureAbstract to DebtInstrumentTable" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/LongtermDebt180MillionTermLoanFacilityDetails">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtDisclosureAbstract" xlink:label="DebtDisclosureAbstract" xlink:title="DebtDisclosureAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentTable" xlink:label="DebtInstrumentTable" xlink:title="DebtInstrumentTable" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentAxis" xlink:label="DebtInstrumentAxis" xlink:title="DebtInstrumentAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentNameDomain" xlink:label="DebtInstrumentNameDomain" xlink:title="DebtInstrumentNameDomain" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_SeniorSecuredTeamLoanFacilityAlphaBankSA2021Member" xlink:label="SeniorSecuredTeamLoanFacilityAlphaBankSA2021Member" xlink:title="SeniorSecuredTeamLoanFacilityAlphaBankSA2021Member" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentNameDomain" xlink:to="SeniorSecuredTeamLoanFacilityAlphaBankSA2021Member" xlink:title="presentation: DebtInstrumentNameDomain to SeniorSecuredTeamLoanFacilityAlphaBankSA2021Member" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentAxis" xlink:to="DebtInstrumentNameDomain" xlink:title="presentation: DebtInstrumentAxis to DebtInstrumentNameDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentTable" xlink:to="DebtInstrumentAxis" xlink:title="presentation: DebtInstrumentTable to DebtInstrumentAxis" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentRedemptionPeriodAxis" xlink:label="DebtInstrumentRedemptionPeriodAxis" xlink:title="DebtInstrumentRedemptionPeriodAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentRedemptionPeriodDomain" xlink:label="DebtInstrumentRedemptionPeriodDomain" xlink:title="DebtInstrumentRedemptionPeriodDomain" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentRedemptionPeriodOneMember" xlink:label="DebtInstrumentRedemptionPeriodOneMember" xlink:title="DebtInstrumentRedemptionPeriodOneMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentRedemptionPeriodDomain" xlink:to="DebtInstrumentRedemptionPeriodOneMember" xlink:title="presentation: DebtInstrumentRedemptionPeriodDomain to DebtInstrumentRedemptionPeriodOneMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentRedemptionPeriodTwoMember" xlink:label="DebtInstrumentRedemptionPeriodTwoMember" xlink:title="DebtInstrumentRedemptionPeriodTwoMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentRedemptionPeriodDomain" xlink:to="DebtInstrumentRedemptionPeriodTwoMember" xlink:title="presentation: DebtInstrumentRedemptionPeriodDomain to DebtInstrumentRedemptionPeriodTwoMember" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentRedemptionPeriodAxis" xlink:to="DebtInstrumentRedemptionPeriodDomain" xlink:title="presentation: DebtInstrumentRedemptionPeriodAxis to DebtInstrumentRedemptionPeriodDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentTable" xlink:to="DebtInstrumentRedemptionPeriodAxis" xlink:title="presentation: DebtInstrumentTable to DebtInstrumentRedemptionPeriodAxis" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentLineItems" xlink:label="DebtInstrumentLineItems" xlink:title="DebtInstrumentLineItems" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentsAbstract" xlink:label="DebtInstrumentsAbstract" xlink:title="DebtInstrumentsAbstract" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_NumberOfShipOwningSubsidiariesEnteringIntoTermLoanFacility" xlink:label="NumberOfShipOwningSubsidiariesEnteringIntoTermLoanFacility" xlink:title="NumberOfShipOwningSubsidiariesEnteringIntoTermLoanFacility" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentsAbstract" xlink:to="NumberOfShipOwningSubsidiariesEnteringIntoTermLoanFacility" xlink:title="presentation: DebtInstrumentsAbstract to NumberOfShipOwningSubsidiariesEnteringIntoTermLoanFacility" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentFaceAmount" xlink:label="DebtInstrumentFaceAmount" xlink:title="DebtInstrumentFaceAmount" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentsAbstract" xlink:to="DebtInstrumentFaceAmount" xlink:title="presentation: DebtInstrumentsAbstract to DebtInstrumentFaceAmount" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_DebtInstrumentNumberOfTranches" xlink:label="DebtInstrumentNumberOfTranches" xlink:title="DebtInstrumentNumberOfTranches" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentsAbstract" xlink:to="DebtInstrumentNumberOfTranches" xlink:title="presentation: DebtInstrumentsAbstract to DebtInstrumentNumberOfTranches" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentTerm" xlink:label="DebtInstrumentTerm" xlink:title="DebtInstrumentTerm" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentsAbstract" xlink:to="DebtInstrumentTerm" xlink:title="presentation: DebtInstrumentsAbstract to DebtInstrumentTerm" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_DebtInstrumentNumberOfPaymentInstallments" xlink:label="DebtInstrumentNumberOfPaymentInstallments" xlink:title="DebtInstrumentNumberOfPaymentInstallments" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentsAbstract" xlink:to="DebtInstrumentNumberOfPaymentInstallments" xlink:title="presentation: DebtInstrumentsAbstract to DebtInstrumentNumberOfPaymentInstallments" order="4.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentFrequencyOfPeriodicPayment" xlink:label="DebtInstrumentFrequencyOfPeriodicPayment" xlink:title="DebtInstrumentFrequencyOfPeriodicPayment" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentsAbstract" xlink:to="DebtInstrumentFrequencyOfPeriodicPayment" xlink:title="presentation: DebtInstrumentsAbstract to DebtInstrumentFrequencyOfPeriodicPayment" order="5.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentPeriodicPayment" xlink:label="DebtInstrumentPeriodicPayment" xlink:title="DebtInstrumentPeriodicPayment" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentsAbstract" xlink:to="DebtInstrumentPeriodicPayment" xlink:title="presentation: DebtInstrumentsAbstract to DebtInstrumentPeriodicPayment" order="6.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentPeriodicPaymentTermsBalloonPaymentToBePaid" xlink:label="DebtInstrumentPeriodicPaymentTermsBalloonPaymentToBePaid" xlink:title="DebtInstrumentPeriodicPaymentTermsBalloonPaymentToBePaid" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentsAbstract" xlink:to="DebtInstrumentPeriodicPaymentTermsBalloonPaymentToBePaid" xlink:title="presentation: DebtInstrumentsAbstract to DebtInstrumentPeriodicPaymentTermsBalloonPaymentToBePaid" order="7.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentLineItems" xlink:to="DebtInstrumentsAbstract" xlink:title="presentation: DebtInstrumentLineItems to DebtInstrumentsAbstract" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentTable" xlink:to="DebtInstrumentLineItems" xlink:title="presentation: DebtInstrumentTable to DebtInstrumentLineItems" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtDisclosureAbstract" xlink:to="DebtInstrumentTable" xlink:title="presentation: DebtDisclosureAbstract to DebtInstrumentTable" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/LongtermDebt4075MillionTermLoanFacilityDetails">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtDisclosureAbstract" xlink:label="DebtDisclosureAbstract" xlink:title="DebtDisclosureAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentTable" xlink:label="DebtInstrumentTable" xlink:title="DebtInstrumentTable" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentAxis" xlink:label="DebtInstrumentAxis" xlink:title="DebtInstrumentAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentNameDomain" xlink:label="DebtInstrumentNameDomain" xlink:title="DebtInstrumentNameDomain" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_SeniorSecuredTeamLoanFacilityHamburgCommercialBankAGJuly2021Member" xlink:label="SeniorSecuredTeamLoanFacilityHamburgCommercialBankAGJuly2021Member" xlink:title="SeniorSecuredTeamLoanFacilityHamburgCommercialBankAGJuly2021Member" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentNameDomain" xlink:to="SeniorSecuredTeamLoanFacilityHamburgCommercialBankAGJuly2021Member" xlink:title="presentation: DebtInstrumentNameDomain to SeniorSecuredTeamLoanFacilityHamburgCommercialBankAGJuly2021Member" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentAxis" xlink:to="DebtInstrumentNameDomain" xlink:title="presentation: DebtInstrumentAxis to DebtInstrumentNameDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentTable" xlink:to="DebtInstrumentAxis" xlink:title="presentation: DebtInstrumentTable to DebtInstrumentAxis" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentLineItems" xlink:label="DebtInstrumentLineItems" xlink:title="DebtInstrumentLineItems" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentsAbstract" xlink:label="DebtInstrumentsAbstract" xlink:title="DebtInstrumentsAbstract" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_NumberOfShipOwningSubsidiariesEnteringIntoTermLoanFacility" xlink:label="NumberOfShipOwningSubsidiariesEnteringIntoTermLoanFacility" xlink:title="NumberOfShipOwningSubsidiariesEnteringIntoTermLoanFacility" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentsAbstract" xlink:to="NumberOfShipOwningSubsidiariesEnteringIntoTermLoanFacility" xlink:title="presentation: DebtInstrumentsAbstract to NumberOfShipOwningSubsidiariesEnteringIntoTermLoanFacility" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentFaceAmount" xlink:label="DebtInstrumentFaceAmount" xlink:title="DebtInstrumentFaceAmount" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentsAbstract" xlink:to="DebtInstrumentFaceAmount" xlink:title="presentation: DebtInstrumentsAbstract to DebtInstrumentFaceAmount" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_DebtInstrumentNumberOfTranches" xlink:label="DebtInstrumentNumberOfTranches" xlink:title="DebtInstrumentNumberOfTranches" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentsAbstract" xlink:to="DebtInstrumentNumberOfTranches" xlink:title="presentation: DebtInstrumentsAbstract to DebtInstrumentNumberOfTranches" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_DebtInstrumentNumberOfPaymentInstallments" xlink:label="DebtInstrumentNumberOfPaymentInstallments" xlink:title="DebtInstrumentNumberOfPaymentInstallments" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentsAbstract" xlink:to="DebtInstrumentNumberOfPaymentInstallments" xlink:title="presentation: DebtInstrumentsAbstract to DebtInstrumentNumberOfPaymentInstallments" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentFrequencyOfPeriodicPayment" xlink:label="DebtInstrumentFrequencyOfPeriodicPayment" xlink:title="DebtInstrumentFrequencyOfPeriodicPayment" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentsAbstract" xlink:to="DebtInstrumentFrequencyOfPeriodicPayment" xlink:title="presentation: DebtInstrumentsAbstract to DebtInstrumentFrequencyOfPeriodicPayment" order="4.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentPeriodicPayment" xlink:label="DebtInstrumentPeriodicPayment" xlink:title="DebtInstrumentPeriodicPayment" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentsAbstract" xlink:to="DebtInstrumentPeriodicPayment" xlink:title="presentation: DebtInstrumentsAbstract to DebtInstrumentPeriodicPayment" order="5.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentPeriodicPaymentTermsBalloonPaymentToBePaid" xlink:label="DebtInstrumentPeriodicPaymentTermsBalloonPaymentToBePaid" xlink:title="DebtInstrumentPeriodicPaymentTermsBalloonPaymentToBePaid" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentsAbstract" xlink:to="DebtInstrumentPeriodicPaymentTermsBalloonPaymentToBePaid" xlink:title="presentation: DebtInstrumentsAbstract to DebtInstrumentPeriodicPaymentTermsBalloonPaymentToBePaid" order="6.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentLineItems" xlink:to="DebtInstrumentsAbstract" xlink:title="presentation: DebtInstrumentLineItems to DebtInstrumentsAbstract" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentTable" xlink:to="DebtInstrumentLineItems" xlink:title="presentation: DebtInstrumentTable to DebtInstrumentLineItems" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtDisclosureAbstract" xlink:to="DebtInstrumentTable" xlink:title="presentation: DebtDisclosureAbstract to DebtInstrumentTable" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/LongtermDebt2315MillionTermLoanFacilityDetails">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtDisclosureAbstract" xlink:label="DebtDisclosureAbstract" xlink:title="DebtDisclosureAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentTable" xlink:label="DebtInstrumentTable" xlink:title="DebtInstrumentTable" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentAxis" xlink:label="DebtInstrumentAxis" xlink:title="DebtInstrumentAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentNameDomain" xlink:label="DebtInstrumentNameDomain" xlink:title="DebtInstrumentNameDomain" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_SeniorSecuredTeamLoanFacilityChaileaseInternationalFinancialServicesSingaporePteLtdMember" xlink:label="SeniorSecuredTeamLoanFacilityChaileaseInternationalFinancialServicesSingaporePteLtdMember" xlink:title="SeniorSecuredTeamLoanFacilityChaileaseInternationalFinancialServicesSingaporePteLtdMember" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_SeniorSecuredTeamLoanFacilityChaileaseInternationalFinancialServicesSingaporePteLtdTrancheOneMember" xlink:label="SeniorSecuredTeamLoanFacilityChaileaseInternationalFinancialServicesSingaporePteLtdTrancheOneMember" xlink:title="SeniorSecuredTeamLoanFacilityChaileaseInternationalFinancialServicesSingaporePteLtdTrancheOneMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="SeniorSecuredTeamLoanFacilityChaileaseInternationalFinancialServicesSingaporePteLtdMember" xlink:to="SeniorSecuredTeamLoanFacilityChaileaseInternationalFinancialServicesSingaporePteLtdTrancheOneMember" xlink:title="presentation: SeniorSecuredTeamLoanFacilityChaileaseInternationalFinancialServicesSingaporePteLtdMember to SeniorSecuredTeamLoanFacilityChaileaseInternationalFinancialServicesSingaporePteLtdTrancheOneMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_SeniorSecuredTeamLoanFacilityChaileaseInternationalFinancialServicesSingaporePteLtdTrancheTwoMember" xlink:label="SeniorSecuredTeamLoanFacilityChaileaseInternationalFinancialServicesSingaporePteLtdTrancheTwoMember" xlink:title="SeniorSecuredTeamLoanFacilityChaileaseInternationalFinancialServicesSingaporePteLtdTrancheTwoMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="SeniorSecuredTeamLoanFacilityChaileaseInternationalFinancialServicesSingaporePteLtdMember" xlink:to="SeniorSecuredTeamLoanFacilityChaileaseInternationalFinancialServicesSingaporePteLtdTrancheTwoMember" xlink:title="presentation: SeniorSecuredTeamLoanFacilityChaileaseInternationalFinancialServicesSingaporePteLtdMember to SeniorSecuredTeamLoanFacilityChaileaseInternationalFinancialServicesSingaporePteLtdTrancheTwoMember" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentNameDomain" xlink:to="SeniorSecuredTeamLoanFacilityChaileaseInternationalFinancialServicesSingaporePteLtdMember" xlink:title="presentation: DebtInstrumentNameDomain to SeniorSecuredTeamLoanFacilityChaileaseInternationalFinancialServicesSingaporePteLtdMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentAxis" xlink:to="DebtInstrumentNameDomain" xlink:title="presentation: DebtInstrumentAxis to DebtInstrumentNameDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentTable" xlink:to="DebtInstrumentAxis" xlink:title="presentation: DebtInstrumentTable to DebtInstrumentAxis" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentRedemptionPeriodAxis" xlink:label="DebtInstrumentRedemptionPeriodAxis" xlink:title="DebtInstrumentRedemptionPeriodAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentRedemptionPeriodDomain" xlink:label="DebtInstrumentRedemptionPeriodDomain" xlink:title="DebtInstrumentRedemptionPeriodDomain" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentRedemptionPeriodOneMember" xlink:label="DebtInstrumentRedemptionPeriodOneMember" xlink:title="DebtInstrumentRedemptionPeriodOneMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentRedemptionPeriodDomain" xlink:to="DebtInstrumentRedemptionPeriodOneMember" xlink:title="presentation: DebtInstrumentRedemptionPeriodDomain to DebtInstrumentRedemptionPeriodOneMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentRedemptionPeriodTwoMember" xlink:label="DebtInstrumentRedemptionPeriodTwoMember" xlink:title="DebtInstrumentRedemptionPeriodTwoMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentRedemptionPeriodDomain" xlink:to="DebtInstrumentRedemptionPeriodTwoMember" xlink:title="presentation: DebtInstrumentRedemptionPeriodDomain to DebtInstrumentRedemptionPeriodTwoMember" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentRedemptionPeriodAxis" xlink:to="DebtInstrumentRedemptionPeriodDomain" xlink:title="presentation: DebtInstrumentRedemptionPeriodAxis to DebtInstrumentRedemptionPeriodDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentTable" xlink:to="DebtInstrumentRedemptionPeriodAxis" xlink:title="presentation: DebtInstrumentTable to DebtInstrumentRedemptionPeriodAxis" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentLineItems" xlink:label="DebtInstrumentLineItems" xlink:title="DebtInstrumentLineItems" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentsAbstract" xlink:label="DebtInstrumentsAbstract" xlink:title="DebtInstrumentsAbstract" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_NumberOfShipOwningSubsidiariesEnteringIntoTermLoanFacility" xlink:label="NumberOfShipOwningSubsidiariesEnteringIntoTermLoanFacility" xlink:title="NumberOfShipOwningSubsidiariesEnteringIntoTermLoanFacility" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentsAbstract" xlink:to="NumberOfShipOwningSubsidiariesEnteringIntoTermLoanFacility" xlink:title="presentation: DebtInstrumentsAbstract to NumberOfShipOwningSubsidiariesEnteringIntoTermLoanFacility" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentFaceAmount" xlink:label="DebtInstrumentFaceAmount" xlink:title="DebtInstrumentFaceAmount" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentsAbstract" xlink:to="DebtInstrumentFaceAmount" xlink:title="presentation: DebtInstrumentsAbstract to DebtInstrumentFaceAmount" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_DebtInstrumentNumberOfTranches" xlink:label="DebtInstrumentNumberOfTranches" xlink:title="DebtInstrumentNumberOfTranches" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentsAbstract" xlink:to="DebtInstrumentNumberOfTranches" xlink:title="presentation: DebtInstrumentsAbstract to DebtInstrumentNumberOfTranches" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentTerm" xlink:label="DebtInstrumentTerm" xlink:title="DebtInstrumentTerm" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentsAbstract" xlink:to="DebtInstrumentTerm" xlink:title="presentation: DebtInstrumentsAbstract to DebtInstrumentTerm" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_DebtInstrumentNumberOfPaymentInstallments" xlink:label="DebtInstrumentNumberOfPaymentInstallments" xlink:title="DebtInstrumentNumberOfPaymentInstallments" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentsAbstract" xlink:to="DebtInstrumentNumberOfPaymentInstallments" xlink:title="presentation: DebtInstrumentsAbstract to DebtInstrumentNumberOfPaymentInstallments" order="4.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentFrequencyOfPeriodicPayment" xlink:label="DebtInstrumentFrequencyOfPeriodicPayment" xlink:title="DebtInstrumentFrequencyOfPeriodicPayment" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentsAbstract" xlink:to="DebtInstrumentFrequencyOfPeriodicPayment" xlink:title="presentation: DebtInstrumentsAbstract to DebtInstrumentFrequencyOfPeriodicPayment" order="5.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentPeriodicPayment" xlink:label="DebtInstrumentPeriodicPayment" xlink:title="DebtInstrumentPeriodicPayment" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentsAbstract" xlink:to="DebtInstrumentPeriodicPayment" xlink:title="presentation: DebtInstrumentsAbstract to DebtInstrumentPeriodicPayment" order="6.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentPeriodicPaymentTermsBalloonPaymentToBePaid" xlink:label="DebtInstrumentPeriodicPaymentTermsBalloonPaymentToBePaid" xlink:title="DebtInstrumentPeriodicPaymentTermsBalloonPaymentToBePaid" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentsAbstract" xlink:to="DebtInstrumentPeriodicPaymentTermsBalloonPaymentToBePaid" xlink:title="presentation: DebtInstrumentsAbstract to DebtInstrumentPeriodicPaymentTermsBalloonPaymentToBePaid" order="7.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentLineItems" xlink:to="DebtInstrumentsAbstract" xlink:title="presentation: DebtInstrumentLineItems to DebtInstrumentsAbstract" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentTable" xlink:to="DebtInstrumentLineItems" xlink:title="presentation: DebtInstrumentTable to DebtInstrumentLineItems" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtDisclosureAbstract" xlink:to="DebtInstrumentTable" xlink:title="presentation: DebtDisclosureAbstract to DebtInstrumentTable" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/LongtermDebt50MillionConvertibleDebenturesDetails">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtDisclosureAbstract" xlink:label="DebtDisclosureAbstract" xlink:title="DebtDisclosureAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentTable" xlink:label="DebtInstrumentTable" xlink:title="DebtInstrumentTable" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentAxis" xlink:label="DebtInstrumentAxis" xlink:title="DebtInstrumentAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentNameDomain" xlink:label="DebtInstrumentNameDomain" xlink:title="DebtInstrumentNameDomain" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_ConvertibleDebenturesMember" xlink:label="ConvertibleDebenturesMember" xlink:title="ConvertibleDebenturesMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentNameDomain" xlink:to="ConvertibleDebenturesMember" xlink:title="presentation: DebtInstrumentNameDomain to ConvertibleDebenturesMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentAxis" xlink:to="DebtInstrumentNameDomain" xlink:title="presentation: DebtInstrumentAxis to DebtInstrumentNameDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentTable" xlink:to="DebtInstrumentAxis" xlink:title="presentation: DebtInstrumentTable to DebtInstrumentAxis" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentLineItems" xlink:label="DebtInstrumentLineItems" xlink:title="DebtInstrumentLineItems" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentsAbstract" xlink:label="DebtInstrumentsAbstract" xlink:title="DebtInstrumentsAbstract" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_NumberOfConvertibleDebenturesIssuedAndSold" xlink:label="NumberOfConvertibleDebenturesIssuedAndSold" xlink:title="NumberOfConvertibleDebenturesIssuedAndSold" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentsAbstract" xlink:to="NumberOfConvertibleDebenturesIssuedAndSold" xlink:title="presentation: DebtInstrumentsAbstract to NumberOfConvertibleDebenturesIssuedAndSold" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentFaceAmount" xlink:label="DebtInstrumentFaceAmount" xlink:title="DebtInstrumentFaceAmount" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentsAbstract" xlink:to="DebtInstrumentFaceAmount" xlink:title="presentation: DebtInstrumentsAbstract to DebtInstrumentFaceAmount" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentTerm" xlink:label="DebtInstrumentTerm" xlink:title="DebtInstrumentTerm" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentsAbstract" xlink:to="DebtInstrumentTerm" xlink:title="presentation: DebtInstrumentsAbstract to DebtInstrumentTerm" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage" xlink:label="DebtInstrumentInterestRateStatedPercentage" xlink:title="DebtInstrumentInterestRateStatedPercentage" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentsAbstract" xlink:to="DebtInstrumentInterestRateStatedPercentage" xlink:title="presentation: DebtInstrumentsAbstract to DebtInstrumentInterestRateStatedPercentage" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentConvertibleConversionPrice1" xlink:label="DebtInstrumentConvertibleConversionPrice1" xlink:title="DebtInstrumentConvertibleConversionPrice1" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentsAbstract" xlink:to="DebtInstrumentConvertibleConversionPrice1" xlink:title="presentation: DebtInstrumentsAbstract to DebtInstrumentConvertibleConversionPrice1" order="4.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentConvertibleThresholdPercentageOfStockPriceTrigger" xlink:label="DebtInstrumentConvertibleThresholdPercentageOfStockPriceTrigger" xlink:title="DebtInstrumentConvertibleThresholdPercentageOfStockPriceTrigger" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentsAbstract" xlink:to="DebtInstrumentConvertibleThresholdPercentageOfStockPriceTrigger" xlink:title="presentation: DebtInstrumentsAbstract to DebtInstrumentConvertibleThresholdPercentageOfStockPriceTrigger" order="5.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentConvertibleThresholdTradingDays" xlink:label="DebtInstrumentConvertibleThresholdTradingDays" xlink:title="DebtInstrumentConvertibleThresholdTradingDays" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentsAbstract" xlink:to="DebtInstrumentConvertibleThresholdTradingDays" xlink:title="presentation: DebtInstrumentsAbstract to DebtInstrumentConvertibleThresholdTradingDays" order="6.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtConversionOriginalDebtAmount1" xlink:label="DebtConversionOriginalDebtAmount1" xlink:title="DebtConversionOriginalDebtAmount1" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentsAbstract" xlink:to="DebtConversionOriginalDebtAmount1" xlink:title="presentation: DebtInstrumentsAbstract to DebtConversionOriginalDebtAmount1" order="7.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities" xlink:label="StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities" xlink:title="StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentsAbstract" xlink:to="StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities" xlink:title="presentation: DebtInstrumentsAbstract to StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities" order="8.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_BeneficialConversionFeaturesAmount" xlink:label="BeneficialConversionFeaturesAmount" xlink:title="BeneficialConversionFeaturesAmount" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentsAbstract" xlink:to="BeneficialConversionFeaturesAmount" xlink:title="presentation: DebtInstrumentsAbstract to BeneficialConversionFeaturesAmount" order="9.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentLineItems" xlink:to="DebtInstrumentsAbstract" xlink:title="presentation: DebtInstrumentLineItems to DebtInstrumentsAbstract" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentTable" xlink:to="DebtInstrumentLineItems" xlink:title="presentation: DebtInstrumentTable to DebtInstrumentLineItems" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtDisclosureAbstract" xlink:to="DebtInstrumentTable" xlink:title="presentation: DebtDisclosureAbstract to DebtInstrumentTable" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/LongtermDebtAnnualPrincipalPaymentsDetails">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtDisclosureAbstract" xlink:label="DebtDisclosureAbstract" xlink:title="DebtDisclosureAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentTable" xlink:label="DebtInstrumentTable" xlink:title="DebtInstrumentTable" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentAxis" xlink:label="DebtInstrumentAxis" xlink:title="DebtInstrumentAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentNameDomain" xlink:label="DebtInstrumentNameDomain" xlink:title="DebtInstrumentNameDomain" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_SeniorSecuredTeamLoanFacilityAlphaBankSA2019Member" xlink:label="SeniorSecuredTeamLoanFacilityAlphaBankSA2019Member" xlink:title="SeniorSecuredTeamLoanFacilityAlphaBankSA2019Member" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentNameDomain" xlink:to="SeniorSecuredTeamLoanFacilityAlphaBankSA2019Member" xlink:title="presentation: DebtInstrumentNameDomain to SeniorSecuredTeamLoanFacilityAlphaBankSA2019Member" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_SeniorSecuredTeamLoanFacilityAlphaBankSA2021Member" xlink:label="SeniorSecuredTeamLoanFacilityAlphaBankSA2021Member" xlink:title="SeniorSecuredTeamLoanFacilityAlphaBankSA2021Member" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentNameDomain" xlink:to="SeniorSecuredTeamLoanFacilityAlphaBankSA2021Member" xlink:title="presentation: DebtInstrumentNameDomain to SeniorSecuredTeamLoanFacilityAlphaBankSA2021Member" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_SeniorSecuredTeamLoanFacilityHamburgCommercialBankAGJanuary2021Member" xlink:label="SeniorSecuredTeamLoanFacilityHamburgCommercialBankAGJanuary2021Member" xlink:title="SeniorSecuredTeamLoanFacilityHamburgCommercialBankAGJanuary2021Member" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentNameDomain" xlink:to="SeniorSecuredTeamLoanFacilityHamburgCommercialBankAGJanuary2021Member" xlink:title="presentation: DebtInstrumentNameDomain to SeniorSecuredTeamLoanFacilityHamburgCommercialBankAGJanuary2021Member" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_SeniorSecuredTeamLoanFacilityHamburgCommercialBankAGJuly2021Member" xlink:label="SeniorSecuredTeamLoanFacilityHamburgCommercialBankAGJuly2021Member" xlink:title="SeniorSecuredTeamLoanFacilityHamburgCommercialBankAGJuly2021Member" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentNameDomain" xlink:to="SeniorSecuredTeamLoanFacilityHamburgCommercialBankAGJuly2021Member" xlink:title="presentation: DebtInstrumentNameDomain to SeniorSecuredTeamLoanFacilityHamburgCommercialBankAGJuly2021Member" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_ThirdPartyAndRelatedPartyDebtMember" xlink:label="ThirdPartyAndRelatedPartyDebtMember" xlink:title="ThirdPartyAndRelatedPartyDebtMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentNameDomain" xlink:to="ThirdPartyAndRelatedPartyDebtMember" xlink:title="presentation: DebtInstrumentNameDomain to ThirdPartyAndRelatedPartyDebtMember" order="4.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentAxis" xlink:to="DebtInstrumentNameDomain" xlink:title="presentation: DebtInstrumentAxis to DebtInstrumentNameDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentTable" xlink:to="DebtInstrumentAxis" xlink:title="presentation: DebtInstrumentTable to DebtInstrumentAxis" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentLineItems" xlink:label="DebtInstrumentLineItems" xlink:title="DebtInstrumentLineItems" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentsAbstract" xlink:label="DebtInstrumentsAbstract" xlink:title="DebtInstrumentsAbstract" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_MinimumLiquidityDeposits" xlink:label="MinimumLiquidityDeposits" xlink:title="MinimumLiquidityDeposits" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentsAbstract" xlink:to="MinimumLiquidityDeposits" xlink:title="presentation: DebtInstrumentsAbstract to MinimumLiquidityDeposits" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentFaceAmount" xlink:label="DebtInstrumentFaceAmount" xlink:title="DebtInstrumentFaceAmount" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentsAbstract" xlink:to="DebtInstrumentFaceAmount" xlink:title="presentation: DebtInstrumentsAbstract to DebtInstrumentFaceAmount" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_DryDockingReserveAccounts" xlink:label="DryDockingReserveAccounts" xlink:title="DryDockingReserveAccounts" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentsAbstract" xlink:to="DryDockingReserveAccounts" xlink:title="presentation: DebtInstrumentsAbstract to DryDockingReserveAccounts" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_RetentionDeposits" xlink:label="RetentionDeposits" xlink:title="RetentionDeposits" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentsAbstract" xlink:to="RetentionDeposits" xlink:title="presentation: DebtInstrumentsAbstract to RetentionDeposits" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RestrictedCashNoncurrent" xlink:label="RestrictedCashNoncurrent" xlink:title="RestrictedCashNoncurrent" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentsAbstract" xlink:to="RestrictedCashNoncurrent" xlink:title="presentation: DebtInstrumentsAbstract to RestrictedCashNoncurrent" order="4.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_MinimumLiquidityDeposit" xlink:label="MinimumLiquidityDeposit" xlink:title="MinimumLiquidityDeposit" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentsAbstract" xlink:to="MinimumLiquidityDeposit" xlink:title="presentation: DebtInstrumentsAbstract to MinimumLiquidityDeposit" order="5.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LongTermDebtByMaturityAbstract" xlink:label="LongTermDebtByMaturityAbstract" xlink:title="LongTermDebtByMaturityAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths" xlink:label="LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths" xlink:title="LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="LongTermDebtByMaturityAbstract" xlink:to="LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths" xlink:title="presentation: LongTermDebtByMaturityAbstract to LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo" xlink:label="LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo" xlink:title="LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="LongTermDebtByMaturityAbstract" xlink:to="LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo" xlink:title="presentation: LongTermDebtByMaturityAbstract to LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree" xlink:label="LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree" xlink:title="LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="LongTermDebtByMaturityAbstract" xlink:to="LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree" xlink:title="presentation: LongTermDebtByMaturityAbstract to LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour" xlink:label="LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour" xlink:title="LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="LongTermDebtByMaturityAbstract" xlink:to="LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour" xlink:title="presentation: LongTermDebtByMaturityAbstract to LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive" xlink:label="LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive" xlink:title="LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="LongTermDebtByMaturityAbstract" xlink:to="LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive" xlink:title="presentation: LongTermDebtByMaturityAbstract to LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive" order="4.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentCarryingAmount" xlink:label="DebtInstrumentCarryingAmount" xlink:title="DebtInstrumentCarryingAmount" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="LongTermDebtByMaturityAbstract" xlink:to="DebtInstrumentCarryingAmount" xlink:title="presentation: LongTermDebtByMaturityAbstract to DebtInstrumentCarryingAmount" order="5.0" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentsAbstract" xlink:to="LongTermDebtByMaturityAbstract" xlink:title="presentation: DebtInstrumentsAbstract to LongTermDebtByMaturityAbstract" order="6.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtWeightedAverageInterestRate" xlink:label="DebtWeightedAverageInterestRate" xlink:title="DebtWeightedAverageInterestRate" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentsAbstract" xlink:to="DebtWeightedAverageInterestRate" xlink:title="presentation: DebtInstrumentsAbstract to DebtWeightedAverageInterestRate" order="7.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InterestExpenseLongTermDebt" xlink:label="InterestExpenseLongTermDebt" xlink:title="InterestExpenseLongTermDebt" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentsAbstract" xlink:to="InterestExpenseLongTermDebt" xlink:title="presentation: DebtInstrumentsAbstract to InterestExpenseLongTermDebt" order="8.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentLineItems" xlink:to="DebtInstrumentsAbstract" xlink:title="presentation: DebtInstrumentLineItems to DebtInstrumentsAbstract" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentTable" xlink:to="DebtInstrumentLineItems" xlink:title="presentation: DebtInstrumentTable to DebtInstrumentLineItems" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtDisclosureAbstract" xlink:to="DebtInstrumentTable" xlink:title="presentation: DebtDisclosureAbstract to DebtInstrumentTable" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/EquityCapitalStructureCapitalStockDetails">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EquityAbstract" xlink:label="EquityAbstract" xlink:title="EquityAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockholdersEquityNoteAbstract" xlink:label="StockholdersEquityNoteAbstract" xlink:title="StockholdersEquityNoteAbstract" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_CapitalStockSharesAuthorized" xlink:label="CapitalStockSharesAuthorized" xlink:title="CapitalStockSharesAuthorized" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StockholdersEquityNoteAbstract" xlink:to="CapitalStockSharesAuthorized" xlink:title="presentation: StockholdersEquityNoteAbstract to CapitalStockSharesAuthorized" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_CapitalStockParOrStatedValuePerShare" xlink:label="CapitalStockParOrStatedValuePerShare" xlink:title="CapitalStockParOrStatedValuePerShare" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StockholdersEquityNoteAbstract" xlink:to="CapitalStockParOrStatedValuePerShare" xlink:title="presentation: StockholdersEquityNoteAbstract to CapitalStockParOrStatedValuePerShare" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CommonStockSharesAuthorized" xlink:label="CommonStockSharesAuthorized" xlink:title="CommonStockSharesAuthorized" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StockholdersEquityNoteAbstract" xlink:to="CommonStockSharesAuthorized" xlink:title="presentation: StockholdersEquityNoteAbstract to CommonStockSharesAuthorized" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PreferredStockSharesAuthorized" xlink:label="PreferredStockSharesAuthorized" xlink:title="PreferredStockSharesAuthorized" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StockholdersEquityNoteAbstract" xlink:to="PreferredStockSharesAuthorized" xlink:title="presentation: StockholdersEquityNoteAbstract to PreferredStockSharesAuthorized" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="EquityAbstract" xlink:to="StockholdersEquityNoteAbstract" xlink:title="presentation: EquityAbstract to StockholdersEquityNoteAbstract" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/EquityCapitalStructureCommonSharesAndFirstAtmProgramDetails">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EquityAbstract" xlink:label="EquityAbstract" xlink:title="EquityAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfStockByClassTable" xlink:label="ScheduleOfStockByClassTable" xlink:title="ScheduleOfStockByClassTable" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementEquityComponentsAxis" xlink:label="StatementEquityComponentsAxis" xlink:title="StatementEquityComponentsAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="EquityComponentDomain" xlink:title="EquityComponentDomain" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CommonStockMember" xlink:label="CommonStockMember" xlink:title="CommonStockMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="EquityComponentDomain" xlink:to="CommonStockMember" xlink:title="presentation: EquityComponentDomain to CommonStockMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StatementEquityComponentsAxis" xlink:to="EquityComponentDomain" xlink:title="presentation: StatementEquityComponentsAxis to EquityComponentDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ScheduleOfStockByClassTable" xlink:to="StatementEquityComponentsAxis" xlink:title="presentation: ScheduleOfStockByClassTable to StatementEquityComponentsAxis" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_RangeAxis" xlink:label="RangeAxis" xlink:title="RangeAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_RangeMember" xlink:label="RangeMember" xlink:title="RangeMember" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_MinimumMember" xlink:label="MinimumMember" xlink:title="MinimumMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RangeMember" xlink:to="MinimumMember" xlink:title="presentation: RangeMember to MinimumMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RangeAxis" xlink:to="RangeMember" xlink:title="presentation: RangeAxis to RangeMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ScheduleOfStockByClassTable" xlink:to="RangeAxis" xlink:title="presentation: ScheduleOfStockByClassTable to RangeAxis" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfStockLineItems" xlink:label="ClassOfStockLineItems" xlink:title="ClassOfStockLineItems" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CommonStockNumberOfSharesParValueAndOtherDisclosuresAbstract" xlink:label="CommonStockNumberOfSharesParValueAndOtherDisclosuresAbstract" xlink:title="CommonStockNumberOfSharesParValueAndOtherDisclosuresAbstract" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_CommonStockVotingRightsNumberOfVotes" xlink:label="CommonStockVotingRightsNumberOfVotes" xlink:title="CommonStockVotingRightsNumberOfVotes" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="CommonStockNumberOfSharesParValueAndOtherDisclosuresAbstract" xlink:to="CommonStockVotingRightsNumberOfVotes" xlink:title="presentation: CommonStockNumberOfSharesParValueAndOtherDisclosuresAbstract to CommonStockVotingRightsNumberOfVotes" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_CommonStockThatCanBeSoldTerm" xlink:label="CommonStockThatCanBeSoldTerm" xlink:title="CommonStockThatCanBeSoldTerm" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="CommonStockNumberOfSharesParValueAndOtherDisclosuresAbstract" xlink:to="CommonStockThatCanBeSoldTerm" xlink:title="presentation: CommonStockNumberOfSharesParValueAndOtherDisclosuresAbstract to CommonStockThatCanBeSoldTerm" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProceedsFromIssuanceOrSaleOfEquity" xlink:label="ProceedsFromIssuanceOrSaleOfEquity" xlink:title="ProceedsFromIssuanceOrSaleOfEquity" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="CommonStockNumberOfSharesParValueAndOtherDisclosuresAbstract" xlink:to="ProceedsFromIssuanceOrSaleOfEquity" xlink:title="presentation: CommonStockNumberOfSharesParValueAndOtherDisclosuresAbstract to ProceedsFromIssuanceOrSaleOfEquity" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SaleOfStockConsiderationReceivedOnTransaction" xlink:label="SaleOfStockConsiderationReceivedOnTransaction" xlink:title="SaleOfStockConsiderationReceivedOnTransaction" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="CommonStockNumberOfSharesParValueAndOtherDisclosuresAbstract" xlink:to="SaleOfStockConsiderationReceivedOnTransaction" xlink:title="presentation: CommonStockNumberOfSharesParValueAndOtherDisclosuresAbstract to SaleOfStockConsiderationReceivedOnTransaction" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesNewIssues" xlink:label="StockIssuedDuringPeriodSharesNewIssues" xlink:title="StockIssuedDuringPeriodSharesNewIssues" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="CommonStockNumberOfSharesParValueAndOtherDisclosuresAbstract" xlink:to="StockIssuedDuringPeriodSharesNewIssues" xlink:title="presentation: CommonStockNumberOfSharesParValueAndOtherDisclosuresAbstract to StockIssuedDuringPeriodSharesNewIssues" order="4.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ClassOfStockLineItems" xlink:to="CommonStockNumberOfSharesParValueAndOtherDisclosuresAbstract" xlink:title="presentation: ClassOfStockLineItems to CommonStockNumberOfSharesParValueAndOtherDisclosuresAbstract" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ScheduleOfStockByClassTable" xlink:to="ClassOfStockLineItems" xlink:title="presentation: ScheduleOfStockByClassTable to ClassOfStockLineItems" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="EquityAbstract" xlink:to="ScheduleOfStockByClassTable" xlink:title="presentation: EquityAbstract to ScheduleOfStockByClassTable" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/EquityCapitalStructure2020JuneEquityOfferingDetails">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EquityAbstract" xlink:label="EquityAbstract" xlink:title="EquityAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfStockByClassTable" xlink:label="ScheduleOfStockByClassTable" xlink:title="ScheduleOfStockByClassTable" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SubsidiarySaleOfStockAxis" xlink:label="SubsidiarySaleOfStockAxis" xlink:title="SubsidiarySaleOfStockAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SaleOfStockNameOfTransactionDomain" xlink:label="SaleOfStockNameOfTransactionDomain" xlink:title="SaleOfStockNameOfTransactionDomain" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_EquityOfferingJune2020Member" xlink:label="EquityOfferingJune2020Member" xlink:title="EquityOfferingJune2020Member" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="SaleOfStockNameOfTransactionDomain" xlink:to="EquityOfferingJune2020Member" xlink:title="presentation: SaleOfStockNameOfTransactionDomain to EquityOfferingJune2020Member" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OverAllotmentOptionMember" xlink:label="OverAllotmentOptionMember" xlink:title="OverAllotmentOptionMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="SaleOfStockNameOfTransactionDomain" xlink:to="OverAllotmentOptionMember" xlink:title="presentation: SaleOfStockNameOfTransactionDomain to OverAllotmentOptionMember" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="SubsidiarySaleOfStockAxis" xlink:to="SaleOfStockNameOfTransactionDomain" xlink:title="presentation: SubsidiarySaleOfStockAxis to SaleOfStockNameOfTransactionDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ScheduleOfStockByClassTable" xlink:to="SubsidiarySaleOfStockAxis" xlink:title="presentation: ScheduleOfStockByClassTable to SubsidiarySaleOfStockAxis" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementEquityComponentsAxis" xlink:label="StatementEquityComponentsAxis" xlink:title="StatementEquityComponentsAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="EquityComponentDomain" xlink:title="EquityComponentDomain" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CommonStockMember" xlink:label="CommonStockMember" xlink:title="CommonStockMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="EquityComponentDomain" xlink:to="CommonStockMember" xlink:title="presentation: EquityComponentDomain to CommonStockMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StatementEquityComponentsAxis" xlink:to="EquityComponentDomain" xlink:title="presentation: StatementEquityComponentsAxis to EquityComponentDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ScheduleOfStockByClassTable" xlink:to="StatementEquityComponentsAxis" xlink:title="presentation: ScheduleOfStockByClassTable to StatementEquityComponentsAxis" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfWarrantOrRightAxis" xlink:label="ClassOfWarrantOrRightAxis" xlink:title="ClassOfWarrantOrRightAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfWarrantOrRightDomain" xlink:label="ClassOfWarrantOrRightDomain" xlink:title="ClassOfWarrantOrRightDomain" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_PrefundedWarrantMember" xlink:label="PrefundedWarrantMember" xlink:title="PrefundedWarrantMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ClassOfWarrantOrRightDomain" xlink:to="PrefundedWarrantMember" xlink:title="presentation: ClassOfWarrantOrRightDomain to PrefundedWarrantMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_ClassAWarrantMember" xlink:label="ClassAWarrantMember" xlink:title="ClassAWarrantMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ClassOfWarrantOrRightDomain" xlink:to="ClassAWarrantMember" xlink:title="presentation: ClassOfWarrantOrRightDomain to ClassAWarrantMember" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_ClassAAndPrefundedWarrantMember" xlink:label="ClassAAndPrefundedWarrantMember" xlink:title="ClassAAndPrefundedWarrantMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ClassOfWarrantOrRightDomain" xlink:to="ClassAAndPrefundedWarrantMember" xlink:title="presentation: ClassOfWarrantOrRightDomain to ClassAAndPrefundedWarrantMember" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ClassOfWarrantOrRightAxis" xlink:to="ClassOfWarrantOrRightDomain" xlink:title="presentation: ClassOfWarrantOrRightAxis to ClassOfWarrantOrRightDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ScheduleOfStockByClassTable" xlink:to="ClassOfWarrantOrRightAxis" xlink:title="presentation: ScheduleOfStockByClassTable to ClassOfWarrantOrRightAxis" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_MeasurementInputTypeAxis" xlink:label="MeasurementInputTypeAxis" xlink:title="MeasurementInputTypeAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_MeasurementInputTypeDomain" xlink:label="MeasurementInputTypeDomain" xlink:title="MeasurementInputTypeDomain" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_MeasurementInputPriceVolatilityMember" xlink:label="MeasurementInputPriceVolatilityMember" xlink:title="MeasurementInputPriceVolatilityMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="MeasurementInputTypeDomain" xlink:to="MeasurementInputPriceVolatilityMember" xlink:title="presentation: MeasurementInputTypeDomain to MeasurementInputPriceVolatilityMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="MeasurementInputTypeAxis" xlink:to="MeasurementInputTypeDomain" xlink:title="presentation: MeasurementInputTypeAxis to MeasurementInputTypeDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ScheduleOfStockByClassTable" xlink:to="MeasurementInputTypeAxis" xlink:title="presentation: ScheduleOfStockByClassTable to MeasurementInputTypeAxis" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfStockLineItems" xlink:label="ClassOfStockLineItems" xlink:title="ClassOfStockLineItems" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockholdersEquityNoteAbstract" xlink:label="StockholdersEquityNoteAbstract" xlink:title="StockholdersEquityNoteAbstract" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_PublicOfferingNumberOfUnits" xlink:label="PublicOfferingNumberOfUnits" xlink:title="PublicOfferingNumberOfUnits" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StockholdersEquityNoteAbstract" xlink:to="PublicOfferingNumberOfUnits" xlink:title="presentation: StockholdersEquityNoteAbstract to PublicOfferingNumberOfUnits" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_NumberOfSecuritiesIncludedInUnitOffered" xlink:label="NumberOfSecuritiesIncludedInUnitOffered" xlink:title="NumberOfSecuritiesIncludedInUnitOffered" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StockholdersEquityNoteAbstract" xlink:to="NumberOfSecuritiesIncludedInUnitOffered" xlink:title="presentation: StockholdersEquityNoteAbstract to NumberOfSecuritiesIncludedInUnitOffered" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByEachWarrantOrRight" xlink:label="ClassOfWarrantOrRightNumberOfSecuritiesCalledByEachWarrantOrRight" xlink:title="ClassOfWarrantOrRightNumberOfSecuritiesCalledByEachWarrantOrRight" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StockholdersEquityNoteAbstract" xlink:to="ClassOfWarrantOrRightNumberOfSecuritiesCalledByEachWarrantOrRight" xlink:title="presentation: StockholdersEquityNoteAbstract to ClassOfWarrantOrRightNumberOfSecuritiesCalledByEachWarrantOrRight" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" xlink:label="ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" xlink:title="ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StockholdersEquityNoteAbstract" xlink:to="ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" xlink:title="presentation: StockholdersEquityNoteAbstract to ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesNewIssues" xlink:label="StockIssuedDuringPeriodSharesNewIssues" xlink:title="StockIssuedDuringPeriodSharesNewIssues" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StockholdersEquityNoteAbstract" xlink:to="StockIssuedDuringPeriodSharesNewIssues" xlink:title="presentation: StockholdersEquityNoteAbstract to StockIssuedDuringPeriodSharesNewIssues" order="4.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_ClassOfWarrantOrRightIssued" xlink:label="ClassOfWarrantOrRightIssued" xlink:title="ClassOfWarrantOrRightIssued" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StockholdersEquityNoteAbstract" xlink:to="ClassOfWarrantOrRightIssued" xlink:title="presentation: StockholdersEquityNoteAbstract to ClassOfWarrantOrRightIssued" order="5.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_UnitsIssuedDuringPeriodShares" xlink:label="UnitsIssuedDuringPeriodShares" xlink:title="UnitsIssuedDuringPeriodShares" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StockholdersEquityNoteAbstract" xlink:to="UnitsIssuedDuringPeriodShares" xlink:title="presentation: StockholdersEquityNoteAbstract to UnitsIssuedDuringPeriodShares" order="6.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProceedsFromIssuanceOrSaleOfEquity" xlink:label="ProceedsFromIssuanceOrSaleOfEquity" xlink:title="ProceedsFromIssuanceOrSaleOfEquity" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StockholdersEquityNoteAbstract" xlink:to="ProceedsFromIssuanceOrSaleOfEquity" xlink:title="presentation: StockholdersEquityNoteAbstract to ProceedsFromIssuanceOrSaleOfEquity" order="7.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SaleOfStockConsiderationReceivedOnTransaction" xlink:label="SaleOfStockConsiderationReceivedOnTransaction" xlink:title="SaleOfStockConsiderationReceivedOnTransaction" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StockholdersEquityNoteAbstract" xlink:to="SaleOfStockConsiderationReceivedOnTransaction" xlink:title="presentation: StockholdersEquityNoteAbstract to SaleOfStockConsiderationReceivedOnTransaction" order="8.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_WarrantsAndRightsOutstandingTerm" xlink:label="WarrantsAndRightsOutstandingTerm" xlink:title="WarrantsAndRightsOutstandingTerm" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StockholdersEquityNoteAbstract" xlink:to="WarrantsAndRightsOutstandingTerm" xlink:title="presentation: StockholdersEquityNoteAbstract to WarrantsAndRightsOutstandingTerm" order="9.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_ClassOfWarrantOrRightExercised" xlink:label="ClassOfWarrantOrRightExercised" xlink:title="ClassOfWarrantOrRightExercised" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StockholdersEquityNoteAbstract" xlink:to="ClassOfWarrantOrRightExercised" xlink:title="presentation: StockholdersEquityNoteAbstract to ClassOfWarrantOrRightExercised" order="10.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfWarrantOrRightOutstanding" xlink:label="ClassOfWarrantOrRightOutstanding" xlink:title="ClassOfWarrantOrRightOutstanding" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StockholdersEquityNoteAbstract" xlink:to="ClassOfWarrantOrRightOutstanding" xlink:title="presentation: StockholdersEquityNoteAbstract to ClassOfWarrantOrRightOutstanding" order="11.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_WarrantsAndRightsOutstanding" xlink:label="WarrantsAndRightsOutstanding" xlink:title="WarrantsAndRightsOutstanding" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StockholdersEquityNoteAbstract" xlink:to="WarrantsAndRightsOutstanding" xlink:title="presentation: StockholdersEquityNoteAbstract to WarrantsAndRightsOutstanding" order="12.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_WarrantsAndRightsOutstandingMeasurementInput" xlink:label="WarrantsAndRightsOutstandingMeasurementInput" xlink:title="WarrantsAndRightsOutstandingMeasurementInput" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StockholdersEquityNoteAbstract" xlink:to="WarrantsAndRightsOutstandingMeasurementInput" xlink:title="presentation: StockholdersEquityNoteAbstract to WarrantsAndRightsOutstandingMeasurementInput" order="13.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_PercentageIncreaseDecreaseInVolatility" xlink:label="PercentageIncreaseDecreaseInVolatility" xlink:title="PercentageIncreaseDecreaseInVolatility" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StockholdersEquityNoteAbstract" xlink:to="PercentageIncreaseDecreaseInVolatility" xlink:title="presentation: StockholdersEquityNoteAbstract to PercentageIncreaseDecreaseInVolatility" order="14.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_PercentageIncreaseDecreaseInFairValueOfWarrants" xlink:label="PercentageIncreaseDecreaseInFairValueOfWarrants" xlink:title="PercentageIncreaseDecreaseInFairValueOfWarrants" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StockholdersEquityNoteAbstract" xlink:to="PercentageIncreaseDecreaseInFairValueOfWarrants" xlink:title="presentation: StockholdersEquityNoteAbstract to PercentageIncreaseDecreaseInFairValueOfWarrants" order="15.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ClassOfStockLineItems" xlink:to="StockholdersEquityNoteAbstract" xlink:title="presentation: ClassOfStockLineItems to StockholdersEquityNoteAbstract" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ScheduleOfStockByClassTable" xlink:to="ClassOfStockLineItems" xlink:title="presentation: ScheduleOfStockByClassTable to ClassOfStockLineItems" order="4.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="EquityAbstract" xlink:to="ScheduleOfStockByClassTable" xlink:title="presentation: EquityAbstract to ScheduleOfStockByClassTable" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/EquityCapitalStructure2020JulyEquityOfferingDetails">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EquityAbstract" xlink:label="EquityAbstract" xlink:title="EquityAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfStockByClassTable" xlink:label="ScheduleOfStockByClassTable" xlink:title="ScheduleOfStockByClassTable" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SubsidiarySaleOfStockAxis" xlink:label="SubsidiarySaleOfStockAxis" xlink:title="SubsidiarySaleOfStockAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SaleOfStockNameOfTransactionDomain" xlink:label="SaleOfStockNameOfTransactionDomain" xlink:title="SaleOfStockNameOfTransactionDomain" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_EquityOfferingJuly2020Member" xlink:label="EquityOfferingJuly2020Member" xlink:title="EquityOfferingJuly2020Member" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="SaleOfStockNameOfTransactionDomain" xlink:to="EquityOfferingJuly2020Member" xlink:title="presentation: SaleOfStockNameOfTransactionDomain to EquityOfferingJuly2020Member" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="SubsidiarySaleOfStockAxis" xlink:to="SaleOfStockNameOfTransactionDomain" xlink:title="presentation: SubsidiarySaleOfStockAxis to SaleOfStockNameOfTransactionDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ScheduleOfStockByClassTable" xlink:to="SubsidiarySaleOfStockAxis" xlink:title="presentation: ScheduleOfStockByClassTable to SubsidiarySaleOfStockAxis" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfWarrantOrRightAxis" xlink:label="ClassOfWarrantOrRightAxis" xlink:title="ClassOfWarrantOrRightAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfWarrantOrRightDomain" xlink:label="ClassOfWarrantOrRightDomain" xlink:title="ClassOfWarrantOrRightDomain" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_PrivatePlacementWarrantsMember" xlink:label="PrivatePlacementWarrantsMember" xlink:title="PrivatePlacementWarrantsMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ClassOfWarrantOrRightDomain" xlink:to="PrivatePlacementWarrantsMember" xlink:title="presentation: ClassOfWarrantOrRightDomain to PrivatePlacementWarrantsMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ClassOfWarrantOrRightAxis" xlink:to="ClassOfWarrantOrRightDomain" xlink:title="presentation: ClassOfWarrantOrRightAxis to ClassOfWarrantOrRightDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ScheduleOfStockByClassTable" xlink:to="ClassOfWarrantOrRightAxis" xlink:title="presentation: ScheduleOfStockByClassTable to ClassOfWarrantOrRightAxis" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_MeasurementInputTypeAxis" xlink:label="MeasurementInputTypeAxis" xlink:title="MeasurementInputTypeAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_MeasurementInputTypeDomain" xlink:label="MeasurementInputTypeDomain" xlink:title="MeasurementInputTypeDomain" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_MeasurementInputPriceVolatilityMember" xlink:label="MeasurementInputPriceVolatilityMember" xlink:title="MeasurementInputPriceVolatilityMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="MeasurementInputTypeDomain" xlink:to="MeasurementInputPriceVolatilityMember" xlink:title="presentation: MeasurementInputTypeDomain to MeasurementInputPriceVolatilityMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="MeasurementInputTypeAxis" xlink:to="MeasurementInputTypeDomain" xlink:title="presentation: MeasurementInputTypeAxis to MeasurementInputTypeDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ScheduleOfStockByClassTable" xlink:to="MeasurementInputTypeAxis" xlink:title="presentation: ScheduleOfStockByClassTable to MeasurementInputTypeAxis" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfStockLineItems" xlink:label="ClassOfStockLineItems" xlink:title="ClassOfStockLineItems" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockholdersEquityNoteAbstract" xlink:label="StockholdersEquityNoteAbstract" xlink:title="StockholdersEquityNoteAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesNewIssues" xlink:label="StockIssuedDuringPeriodSharesNewIssues" xlink:title="StockIssuedDuringPeriodSharesNewIssues" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StockholdersEquityNoteAbstract" xlink:to="StockIssuedDuringPeriodSharesNewIssues" xlink:title="presentation: StockholdersEquityNoteAbstract to StockIssuedDuringPeriodSharesNewIssues" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights" xlink:label="ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights" xlink:title="ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StockholdersEquityNoteAbstract" xlink:to="ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights" xlink:title="presentation: StockholdersEquityNoteAbstract to ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProceedsFromIssuanceOrSaleOfEquity" xlink:label="ProceedsFromIssuanceOrSaleOfEquity" xlink:title="ProceedsFromIssuanceOrSaleOfEquity" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StockholdersEquityNoteAbstract" xlink:to="ProceedsFromIssuanceOrSaleOfEquity" xlink:title="presentation: StockholdersEquityNoteAbstract to ProceedsFromIssuanceOrSaleOfEquity" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SaleOfStockConsiderationReceivedOnTransaction" xlink:label="SaleOfStockConsiderationReceivedOnTransaction" xlink:title="SaleOfStockConsiderationReceivedOnTransaction" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StockholdersEquityNoteAbstract" xlink:to="SaleOfStockConsiderationReceivedOnTransaction" xlink:title="presentation: StockholdersEquityNoteAbstract to SaleOfStockConsiderationReceivedOnTransaction" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_WarrantsAndRightsOutstandingTerm" xlink:label="WarrantsAndRightsOutstandingTerm" xlink:title="WarrantsAndRightsOutstandingTerm" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StockholdersEquityNoteAbstract" xlink:to="WarrantsAndRightsOutstandingTerm" xlink:title="presentation: StockholdersEquityNoteAbstract to WarrantsAndRightsOutstandingTerm" order="4.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" xlink:label="ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" xlink:title="ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StockholdersEquityNoteAbstract" xlink:to="ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" xlink:title="presentation: StockholdersEquityNoteAbstract to ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" order="5.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_ClassOfWarrantOrRightExercised" xlink:label="ClassOfWarrantOrRightExercised" xlink:title="ClassOfWarrantOrRightExercised" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StockholdersEquityNoteAbstract" xlink:to="ClassOfWarrantOrRightExercised" xlink:title="presentation: StockholdersEquityNoteAbstract to ClassOfWarrantOrRightExercised" order="6.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfWarrantOrRightOutstanding" xlink:label="ClassOfWarrantOrRightOutstanding" xlink:title="ClassOfWarrantOrRightOutstanding" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StockholdersEquityNoteAbstract" xlink:to="ClassOfWarrantOrRightOutstanding" xlink:title="presentation: StockholdersEquityNoteAbstract to ClassOfWarrantOrRightOutstanding" order="7.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_WarrantsAndRightsOutstanding" xlink:label="WarrantsAndRightsOutstanding" xlink:title="WarrantsAndRightsOutstanding" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StockholdersEquityNoteAbstract" xlink:to="WarrantsAndRightsOutstanding" xlink:title="presentation: StockholdersEquityNoteAbstract to WarrantsAndRightsOutstanding" order="8.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_WarrantsAndRightsOutstandingMeasurementInput" xlink:label="WarrantsAndRightsOutstandingMeasurementInput" xlink:title="WarrantsAndRightsOutstandingMeasurementInput" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StockholdersEquityNoteAbstract" xlink:to="WarrantsAndRightsOutstandingMeasurementInput" xlink:title="presentation: StockholdersEquityNoteAbstract to WarrantsAndRightsOutstandingMeasurementInput" order="9.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_PercentageIncreaseDecreaseInVolatility" xlink:label="PercentageIncreaseDecreaseInVolatility" xlink:title="PercentageIncreaseDecreaseInVolatility" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StockholdersEquityNoteAbstract" xlink:to="PercentageIncreaseDecreaseInVolatility" xlink:title="presentation: StockholdersEquityNoteAbstract to PercentageIncreaseDecreaseInVolatility" order="10.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_PercentageIncreaseDecreaseInFairValueOfWarrants" xlink:label="PercentageIncreaseDecreaseInFairValueOfWarrants" xlink:title="PercentageIncreaseDecreaseInFairValueOfWarrants" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StockholdersEquityNoteAbstract" xlink:to="PercentageIncreaseDecreaseInFairValueOfWarrants" xlink:title="presentation: StockholdersEquityNoteAbstract to PercentageIncreaseDecreaseInFairValueOfWarrants" order="11.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ClassOfStockLineItems" xlink:to="StockholdersEquityNoteAbstract" xlink:title="presentation: ClassOfStockLineItems to StockholdersEquityNoteAbstract" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ScheduleOfStockByClassTable" xlink:to="ClassOfStockLineItems" xlink:title="presentation: ScheduleOfStockByClassTable to ClassOfStockLineItems" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="EquityAbstract" xlink:to="ScheduleOfStockByClassTable" xlink:title="presentation: EquityAbstract to ScheduleOfStockByClassTable" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/EquityCapitalStructure2021FirstRegisteredDirectEquityOfferingDetails">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EquityAbstract" xlink:label="EquityAbstract" xlink:title="EquityAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfStockByClassTable" xlink:label="ScheduleOfStockByClassTable" xlink:title="ScheduleOfStockByClassTable" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SubsidiarySaleOfStockAxis" xlink:label="SubsidiarySaleOfStockAxis" xlink:title="SubsidiarySaleOfStockAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SaleOfStockNameOfTransactionDomain" xlink:label="SaleOfStockNameOfTransactionDomain" xlink:title="SaleOfStockNameOfTransactionDomain" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_FirstRegisteredDirectEquityOffering2021Member" xlink:label="FirstRegisteredDirectEquityOffering2021Member" xlink:title="FirstRegisteredDirectEquityOffering2021Member" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="SaleOfStockNameOfTransactionDomain" xlink:to="FirstRegisteredDirectEquityOffering2021Member" xlink:title="presentation: SaleOfStockNameOfTransactionDomain to FirstRegisteredDirectEquityOffering2021Member" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="SubsidiarySaleOfStockAxis" xlink:to="SaleOfStockNameOfTransactionDomain" xlink:title="presentation: SubsidiarySaleOfStockAxis to SaleOfStockNameOfTransactionDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ScheduleOfStockByClassTable" xlink:to="SubsidiarySaleOfStockAxis" xlink:title="presentation: ScheduleOfStockByClassTable to SubsidiarySaleOfStockAxis" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfWarrantOrRightAxis" xlink:label="ClassOfWarrantOrRightAxis" xlink:title="ClassOfWarrantOrRightAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfWarrantOrRightDomain" xlink:label="ClassOfWarrantOrRightDomain" xlink:title="ClassOfWarrantOrRightDomain" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_January5WarrantsMember" xlink:label="January5WarrantsMember" xlink:title="January5WarrantsMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ClassOfWarrantOrRightDomain" xlink:to="January5WarrantsMember" xlink:title="presentation: ClassOfWarrantOrRightDomain to January5WarrantsMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ClassOfWarrantOrRightAxis" xlink:to="ClassOfWarrantOrRightDomain" xlink:title="presentation: ClassOfWarrantOrRightAxis to ClassOfWarrantOrRightDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ScheduleOfStockByClassTable" xlink:to="ClassOfWarrantOrRightAxis" xlink:title="presentation: ScheduleOfStockByClassTable to ClassOfWarrantOrRightAxis" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_MeasurementInputTypeAxis" xlink:label="MeasurementInputTypeAxis" xlink:title="MeasurementInputTypeAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_MeasurementInputTypeDomain" xlink:label="MeasurementInputTypeDomain" xlink:title="MeasurementInputTypeDomain" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_MeasurementInputPriceVolatilityMember" xlink:label="MeasurementInputPriceVolatilityMember" xlink:title="MeasurementInputPriceVolatilityMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="MeasurementInputTypeDomain" xlink:to="MeasurementInputPriceVolatilityMember" xlink:title="presentation: MeasurementInputTypeDomain to MeasurementInputPriceVolatilityMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="MeasurementInputTypeAxis" xlink:to="MeasurementInputTypeDomain" xlink:title="presentation: MeasurementInputTypeAxis to MeasurementInputTypeDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ScheduleOfStockByClassTable" xlink:to="MeasurementInputTypeAxis" xlink:title="presentation: ScheduleOfStockByClassTable to MeasurementInputTypeAxis" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfStockLineItems" xlink:label="ClassOfStockLineItems" xlink:title="ClassOfStockLineItems" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockholdersEquityNoteAbstract" xlink:label="StockholdersEquityNoteAbstract" xlink:title="StockholdersEquityNoteAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesNewIssues" xlink:label="StockIssuedDuringPeriodSharesNewIssues" xlink:title="StockIssuedDuringPeriodSharesNewIssues" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StockholdersEquityNoteAbstract" xlink:to="StockIssuedDuringPeriodSharesNewIssues" xlink:title="presentation: StockholdersEquityNoteAbstract to StockIssuedDuringPeriodSharesNewIssues" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights" xlink:label="ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights" xlink:title="ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StockholdersEquityNoteAbstract" xlink:to="ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights" xlink:title="presentation: StockholdersEquityNoteAbstract to ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProceedsFromIssuanceOrSaleOfEquity" xlink:label="ProceedsFromIssuanceOrSaleOfEquity" xlink:title="ProceedsFromIssuanceOrSaleOfEquity" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StockholdersEquityNoteAbstract" xlink:to="ProceedsFromIssuanceOrSaleOfEquity" xlink:title="presentation: StockholdersEquityNoteAbstract to ProceedsFromIssuanceOrSaleOfEquity" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SaleOfStockConsiderationReceivedOnTransaction" xlink:label="SaleOfStockConsiderationReceivedOnTransaction" xlink:title="SaleOfStockConsiderationReceivedOnTransaction" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StockholdersEquityNoteAbstract" xlink:to="SaleOfStockConsiderationReceivedOnTransaction" xlink:title="presentation: StockholdersEquityNoteAbstract to SaleOfStockConsiderationReceivedOnTransaction" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_WarrantsAndRightsOutstandingTerm" xlink:label="WarrantsAndRightsOutstandingTerm" xlink:title="WarrantsAndRightsOutstandingTerm" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StockholdersEquityNoteAbstract" xlink:to="WarrantsAndRightsOutstandingTerm" xlink:title="presentation: StockholdersEquityNoteAbstract to WarrantsAndRightsOutstandingTerm" order="4.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" xlink:label="ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" xlink:title="ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StockholdersEquityNoteAbstract" xlink:to="ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" xlink:title="presentation: StockholdersEquityNoteAbstract to ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" order="5.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_WarrantsAndRightsOutstanding" xlink:label="WarrantsAndRightsOutstanding" xlink:title="WarrantsAndRightsOutstanding" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StockholdersEquityNoteAbstract" xlink:to="WarrantsAndRightsOutstanding" xlink:title="presentation: StockholdersEquityNoteAbstract to WarrantsAndRightsOutstanding" order="6.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_WarrantsAndRightsOutstandingMeasurementInput" xlink:label="WarrantsAndRightsOutstandingMeasurementInput" xlink:title="WarrantsAndRightsOutstandingMeasurementInput" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StockholdersEquityNoteAbstract" xlink:to="WarrantsAndRightsOutstandingMeasurementInput" xlink:title="presentation: StockholdersEquityNoteAbstract to WarrantsAndRightsOutstandingMeasurementInput" order="7.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_PercentageIncreaseDecreaseInVolatility" xlink:label="PercentageIncreaseDecreaseInVolatility" xlink:title="PercentageIncreaseDecreaseInVolatility" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StockholdersEquityNoteAbstract" xlink:to="PercentageIncreaseDecreaseInVolatility" xlink:title="presentation: StockholdersEquityNoteAbstract to PercentageIncreaseDecreaseInVolatility" order="8.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_PercentageIncreaseDecreaseInFairValueOfWarrants" xlink:label="PercentageIncreaseDecreaseInFairValueOfWarrants" xlink:title="PercentageIncreaseDecreaseInFairValueOfWarrants" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StockholdersEquityNoteAbstract" xlink:to="PercentageIncreaseDecreaseInFairValueOfWarrants" xlink:title="presentation: StockholdersEquityNoteAbstract to PercentageIncreaseDecreaseInFairValueOfWarrants" order="9.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ClassOfStockLineItems" xlink:to="StockholdersEquityNoteAbstract" xlink:title="presentation: ClassOfStockLineItems to StockholdersEquityNoteAbstract" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ScheduleOfStockByClassTable" xlink:to="ClassOfStockLineItems" xlink:title="presentation: ScheduleOfStockByClassTable to ClassOfStockLineItems" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="EquityAbstract" xlink:to="ScheduleOfStockByClassTable" xlink:title="presentation: EquityAbstract to ScheduleOfStockByClassTable" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/EquityCapitalStructure2021SecondRegisteredDirectEquityOfferingDetails">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EquityAbstract" xlink:label="EquityAbstract" xlink:title="EquityAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfStockByClassTable" xlink:label="ScheduleOfStockByClassTable" xlink:title="ScheduleOfStockByClassTable" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SubsidiarySaleOfStockAxis" xlink:label="SubsidiarySaleOfStockAxis" xlink:title="SubsidiarySaleOfStockAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SaleOfStockNameOfTransactionDomain" xlink:label="SaleOfStockNameOfTransactionDomain" xlink:title="SaleOfStockNameOfTransactionDomain" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_SecondRegisteredDirectEquityOffering2021Member" xlink:label="SecondRegisteredDirectEquityOffering2021Member" xlink:title="SecondRegisteredDirectEquityOffering2021Member" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="SaleOfStockNameOfTransactionDomain" xlink:to="SecondRegisteredDirectEquityOffering2021Member" xlink:title="presentation: SaleOfStockNameOfTransactionDomain to SecondRegisteredDirectEquityOffering2021Member" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="SubsidiarySaleOfStockAxis" xlink:to="SaleOfStockNameOfTransactionDomain" xlink:title="presentation: SubsidiarySaleOfStockAxis to SaleOfStockNameOfTransactionDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ScheduleOfStockByClassTable" xlink:to="SubsidiarySaleOfStockAxis" xlink:title="presentation: ScheduleOfStockByClassTable to SubsidiarySaleOfStockAxis" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfWarrantOrRightAxis" xlink:label="ClassOfWarrantOrRightAxis" xlink:title="ClassOfWarrantOrRightAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfWarrantOrRightDomain" xlink:label="ClassOfWarrantOrRightDomain" xlink:title="ClassOfWarrantOrRightDomain" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_January12WarrantsMember" xlink:label="January12WarrantsMember" xlink:title="January12WarrantsMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ClassOfWarrantOrRightDomain" xlink:to="January12WarrantsMember" xlink:title="presentation: ClassOfWarrantOrRightDomain to January12WarrantsMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ClassOfWarrantOrRightAxis" xlink:to="ClassOfWarrantOrRightDomain" xlink:title="presentation: ClassOfWarrantOrRightAxis to ClassOfWarrantOrRightDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ScheduleOfStockByClassTable" xlink:to="ClassOfWarrantOrRightAxis" xlink:title="presentation: ScheduleOfStockByClassTable to ClassOfWarrantOrRightAxis" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_MeasurementInputTypeAxis" xlink:label="MeasurementInputTypeAxis" xlink:title="MeasurementInputTypeAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_MeasurementInputTypeDomain" xlink:label="MeasurementInputTypeDomain" xlink:title="MeasurementInputTypeDomain" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_MeasurementInputPriceVolatilityMember" xlink:label="MeasurementInputPriceVolatilityMember" xlink:title="MeasurementInputPriceVolatilityMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="MeasurementInputTypeDomain" xlink:to="MeasurementInputPriceVolatilityMember" xlink:title="presentation: MeasurementInputTypeDomain to MeasurementInputPriceVolatilityMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="MeasurementInputTypeAxis" xlink:to="MeasurementInputTypeDomain" xlink:title="presentation: MeasurementInputTypeAxis to MeasurementInputTypeDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ScheduleOfStockByClassTable" xlink:to="MeasurementInputTypeAxis" xlink:title="presentation: ScheduleOfStockByClassTable to MeasurementInputTypeAxis" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfStockLineItems" xlink:label="ClassOfStockLineItems" xlink:title="ClassOfStockLineItems" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockholdersEquityNoteAbstract" xlink:label="StockholdersEquityNoteAbstract" xlink:title="StockholdersEquityNoteAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesNewIssues" xlink:label="StockIssuedDuringPeriodSharesNewIssues" xlink:title="StockIssuedDuringPeriodSharesNewIssues" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StockholdersEquityNoteAbstract" xlink:to="StockIssuedDuringPeriodSharesNewIssues" xlink:title="presentation: StockholdersEquityNoteAbstract to StockIssuedDuringPeriodSharesNewIssues" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights" xlink:label="ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights" xlink:title="ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StockholdersEquityNoteAbstract" xlink:to="ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights" xlink:title="presentation: StockholdersEquityNoteAbstract to ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProceedsFromIssuanceOrSaleOfEquity" xlink:label="ProceedsFromIssuanceOrSaleOfEquity" xlink:title="ProceedsFromIssuanceOrSaleOfEquity" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StockholdersEquityNoteAbstract" xlink:to="ProceedsFromIssuanceOrSaleOfEquity" xlink:title="presentation: StockholdersEquityNoteAbstract to ProceedsFromIssuanceOrSaleOfEquity" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SaleOfStockConsiderationReceivedOnTransaction" xlink:label="SaleOfStockConsiderationReceivedOnTransaction" xlink:title="SaleOfStockConsiderationReceivedOnTransaction" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StockholdersEquityNoteAbstract" xlink:to="SaleOfStockConsiderationReceivedOnTransaction" xlink:title="presentation: StockholdersEquityNoteAbstract to SaleOfStockConsiderationReceivedOnTransaction" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_WarrantsAndRightsOutstandingTerm" xlink:label="WarrantsAndRightsOutstandingTerm" xlink:title="WarrantsAndRightsOutstandingTerm" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StockholdersEquityNoteAbstract" xlink:to="WarrantsAndRightsOutstandingTerm" xlink:title="presentation: StockholdersEquityNoteAbstract to WarrantsAndRightsOutstandingTerm" order="4.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" xlink:label="ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" xlink:title="ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StockholdersEquityNoteAbstract" xlink:to="ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" xlink:title="presentation: StockholdersEquityNoteAbstract to ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" order="5.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_WarrantsAndRightsOutstanding" xlink:label="WarrantsAndRightsOutstanding" xlink:title="WarrantsAndRightsOutstanding" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StockholdersEquityNoteAbstract" xlink:to="WarrantsAndRightsOutstanding" xlink:title="presentation: StockholdersEquityNoteAbstract to WarrantsAndRightsOutstanding" order="6.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_WarrantsAndRightsOutstandingMeasurementInput" xlink:label="WarrantsAndRightsOutstandingMeasurementInput" xlink:title="WarrantsAndRightsOutstandingMeasurementInput" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StockholdersEquityNoteAbstract" xlink:to="WarrantsAndRightsOutstandingMeasurementInput" xlink:title="presentation: StockholdersEquityNoteAbstract to WarrantsAndRightsOutstandingMeasurementInput" order="7.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_PercentageIncreaseDecreaseInVolatility" xlink:label="PercentageIncreaseDecreaseInVolatility" xlink:title="PercentageIncreaseDecreaseInVolatility" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StockholdersEquityNoteAbstract" xlink:to="PercentageIncreaseDecreaseInVolatility" xlink:title="presentation: StockholdersEquityNoteAbstract to PercentageIncreaseDecreaseInVolatility" order="8.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_PercentageIncreaseDecreaseInFairValueOfWarrants" xlink:label="PercentageIncreaseDecreaseInFairValueOfWarrants" xlink:title="PercentageIncreaseDecreaseInFairValueOfWarrants" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StockholdersEquityNoteAbstract" xlink:to="PercentageIncreaseDecreaseInFairValueOfWarrants" xlink:title="presentation: StockholdersEquityNoteAbstract to PercentageIncreaseDecreaseInFairValueOfWarrants" order="9.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ClassOfStockLineItems" xlink:to="StockholdersEquityNoteAbstract" xlink:title="presentation: ClassOfStockLineItems to StockholdersEquityNoteAbstract" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ScheduleOfStockByClassTable" xlink:to="ClassOfStockLineItems" xlink:title="presentation: ScheduleOfStockByClassTable to ClassOfStockLineItems" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="EquityAbstract" xlink:to="ScheduleOfStockByClassTable" xlink:title="presentation: EquityAbstract to ScheduleOfStockByClassTable" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/EquityCapitalStructure2021ThirdRegisteredDirectEquityOfferingDetails">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EquityAbstract" xlink:label="EquityAbstract" xlink:title="EquityAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfStockByClassTable" xlink:label="ScheduleOfStockByClassTable" xlink:title="ScheduleOfStockByClassTable" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SubsidiarySaleOfStockAxis" xlink:label="SubsidiarySaleOfStockAxis" xlink:title="SubsidiarySaleOfStockAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SaleOfStockNameOfTransactionDomain" xlink:label="SaleOfStockNameOfTransactionDomain" xlink:title="SaleOfStockNameOfTransactionDomain" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_ThirdRegisteredDirectEquityOffering2021Member" xlink:label="ThirdRegisteredDirectEquityOffering2021Member" xlink:title="ThirdRegisteredDirectEquityOffering2021Member" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="SaleOfStockNameOfTransactionDomain" xlink:to="ThirdRegisteredDirectEquityOffering2021Member" xlink:title="presentation: SaleOfStockNameOfTransactionDomain to ThirdRegisteredDirectEquityOffering2021Member" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="SubsidiarySaleOfStockAxis" xlink:to="SaleOfStockNameOfTransactionDomain" xlink:title="presentation: SubsidiarySaleOfStockAxis to SaleOfStockNameOfTransactionDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ScheduleOfStockByClassTable" xlink:to="SubsidiarySaleOfStockAxis" xlink:title="presentation: ScheduleOfStockByClassTable to SubsidiarySaleOfStockAxis" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfWarrantOrRightAxis" xlink:label="ClassOfWarrantOrRightAxis" xlink:title="ClassOfWarrantOrRightAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfWarrantOrRightDomain" xlink:label="ClassOfWarrantOrRightDomain" xlink:title="ClassOfWarrantOrRightDomain" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_April7WarrantsMember" xlink:label="April7WarrantsMember" xlink:title="April7WarrantsMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ClassOfWarrantOrRightDomain" xlink:to="April7WarrantsMember" xlink:title="presentation: ClassOfWarrantOrRightDomain to April7WarrantsMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ClassOfWarrantOrRightAxis" xlink:to="ClassOfWarrantOrRightDomain" xlink:title="presentation: ClassOfWarrantOrRightAxis to ClassOfWarrantOrRightDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ScheduleOfStockByClassTable" xlink:to="ClassOfWarrantOrRightAxis" xlink:title="presentation: ScheduleOfStockByClassTable to ClassOfWarrantOrRightAxis" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_MeasurementInputTypeAxis" xlink:label="MeasurementInputTypeAxis" xlink:title="MeasurementInputTypeAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_MeasurementInputTypeDomain" xlink:label="MeasurementInputTypeDomain" xlink:title="MeasurementInputTypeDomain" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_MeasurementInputPriceVolatilityMember" xlink:label="MeasurementInputPriceVolatilityMember" xlink:title="MeasurementInputPriceVolatilityMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="MeasurementInputTypeDomain" xlink:to="MeasurementInputPriceVolatilityMember" xlink:title="presentation: MeasurementInputTypeDomain to MeasurementInputPriceVolatilityMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="MeasurementInputTypeAxis" xlink:to="MeasurementInputTypeDomain" xlink:title="presentation: MeasurementInputTypeAxis to MeasurementInputTypeDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ScheduleOfStockByClassTable" xlink:to="MeasurementInputTypeAxis" xlink:title="presentation: ScheduleOfStockByClassTable to MeasurementInputTypeAxis" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfStockLineItems" xlink:label="ClassOfStockLineItems" xlink:title="ClassOfStockLineItems" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockholdersEquityNoteAbstract" xlink:label="StockholdersEquityNoteAbstract" xlink:title="StockholdersEquityNoteAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesNewIssues" xlink:label="StockIssuedDuringPeriodSharesNewIssues" xlink:title="StockIssuedDuringPeriodSharesNewIssues" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StockholdersEquityNoteAbstract" xlink:to="StockIssuedDuringPeriodSharesNewIssues" xlink:title="presentation: StockholdersEquityNoteAbstract to StockIssuedDuringPeriodSharesNewIssues" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights" xlink:label="ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights" xlink:title="ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StockholdersEquityNoteAbstract" xlink:to="ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights" xlink:title="presentation: StockholdersEquityNoteAbstract to ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProceedsFromIssuanceOrSaleOfEquity" xlink:label="ProceedsFromIssuanceOrSaleOfEquity" xlink:title="ProceedsFromIssuanceOrSaleOfEquity" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StockholdersEquityNoteAbstract" xlink:to="ProceedsFromIssuanceOrSaleOfEquity" xlink:title="presentation: StockholdersEquityNoteAbstract to ProceedsFromIssuanceOrSaleOfEquity" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SaleOfStockConsiderationReceivedOnTransaction" xlink:label="SaleOfStockConsiderationReceivedOnTransaction" xlink:title="SaleOfStockConsiderationReceivedOnTransaction" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StockholdersEquityNoteAbstract" xlink:to="SaleOfStockConsiderationReceivedOnTransaction" xlink:title="presentation: StockholdersEquityNoteAbstract to SaleOfStockConsiderationReceivedOnTransaction" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_WarrantsAndRightsOutstandingTerm" xlink:label="WarrantsAndRightsOutstandingTerm" xlink:title="WarrantsAndRightsOutstandingTerm" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StockholdersEquityNoteAbstract" xlink:to="WarrantsAndRightsOutstandingTerm" xlink:title="presentation: StockholdersEquityNoteAbstract to WarrantsAndRightsOutstandingTerm" order="4.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" xlink:label="ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" xlink:title="ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StockholdersEquityNoteAbstract" xlink:to="ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" xlink:title="presentation: StockholdersEquityNoteAbstract to ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" order="5.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_ClassOfWarrantOrRightExercised" xlink:label="ClassOfWarrantOrRightExercised" xlink:title="ClassOfWarrantOrRightExercised" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StockholdersEquityNoteAbstract" xlink:to="ClassOfWarrantOrRightExercised" xlink:title="presentation: StockholdersEquityNoteAbstract to ClassOfWarrantOrRightExercised" order="6.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfWarrantOrRightOutstanding" xlink:label="ClassOfWarrantOrRightOutstanding" xlink:title="ClassOfWarrantOrRightOutstanding" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StockholdersEquityNoteAbstract" xlink:to="ClassOfWarrantOrRightOutstanding" xlink:title="presentation: StockholdersEquityNoteAbstract to ClassOfWarrantOrRightOutstanding" order="7.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_WarrantsAndRightsOutstanding" xlink:label="WarrantsAndRightsOutstanding" xlink:title="WarrantsAndRightsOutstanding" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StockholdersEquityNoteAbstract" xlink:to="WarrantsAndRightsOutstanding" xlink:title="presentation: StockholdersEquityNoteAbstract to WarrantsAndRightsOutstanding" order="8.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_WarrantsAndRightsOutstandingMeasurementInput" xlink:label="WarrantsAndRightsOutstandingMeasurementInput" xlink:title="WarrantsAndRightsOutstandingMeasurementInput" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StockholdersEquityNoteAbstract" xlink:to="WarrantsAndRightsOutstandingMeasurementInput" xlink:title="presentation: StockholdersEquityNoteAbstract to WarrantsAndRightsOutstandingMeasurementInput" order="9.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_PercentageIncreaseDecreaseInVolatility" xlink:label="PercentageIncreaseDecreaseInVolatility" xlink:title="PercentageIncreaseDecreaseInVolatility" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StockholdersEquityNoteAbstract" xlink:to="PercentageIncreaseDecreaseInVolatility" xlink:title="presentation: StockholdersEquityNoteAbstract to PercentageIncreaseDecreaseInVolatility" order="10.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_PercentageIncreaseDecreaseInFairValueOfWarrants" xlink:label="PercentageIncreaseDecreaseInFairValueOfWarrants" xlink:title="PercentageIncreaseDecreaseInFairValueOfWarrants" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StockholdersEquityNoteAbstract" xlink:to="PercentageIncreaseDecreaseInFairValueOfWarrants" xlink:title="presentation: StockholdersEquityNoteAbstract to PercentageIncreaseDecreaseInFairValueOfWarrants" order="11.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ClassOfStockLineItems" xlink:to="StockholdersEquityNoteAbstract" xlink:title="presentation: ClassOfStockLineItems to StockholdersEquityNoteAbstract" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ScheduleOfStockByClassTable" xlink:to="ClassOfStockLineItems" xlink:title="presentation: ScheduleOfStockByClassTable to ClassOfStockLineItems" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="EquityAbstract" xlink:to="ScheduleOfStockByClassTable" xlink:title="presentation: EquityAbstract to ScheduleOfStockByClassTable" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/EquityCapitalStructureSecondAtmProgramDetails">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EquityAbstract" xlink:label="EquityAbstract" xlink:title="EquityAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfStockByClassTable" xlink:label="ScheduleOfStockByClassTable" xlink:title="ScheduleOfStockByClassTable" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementEquityComponentsAxis" xlink:label="StatementEquityComponentsAxis" xlink:title="StatementEquityComponentsAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="EquityComponentDomain" xlink:title="EquityComponentDomain" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CommonStockMember" xlink:label="CommonStockMember" xlink:title="CommonStockMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="EquityComponentDomain" xlink:to="CommonStockMember" xlink:title="presentation: EquityComponentDomain to CommonStockMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StatementEquityComponentsAxis" xlink:to="EquityComponentDomain" xlink:title="presentation: StatementEquityComponentsAxis to EquityComponentDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ScheduleOfStockByClassTable" xlink:to="StatementEquityComponentsAxis" xlink:title="presentation: ScheduleOfStockByClassTable to StatementEquityComponentsAxis" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_RangeAxis" xlink:label="RangeAxis" xlink:title="RangeAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_RangeMember" xlink:label="RangeMember" xlink:title="RangeMember" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_MinimumMember" xlink:label="MinimumMember" xlink:title="MinimumMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RangeMember" xlink:to="MinimumMember" xlink:title="presentation: RangeMember to MinimumMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_MaximumMember" xlink:label="MaximumMember" xlink:title="MaximumMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RangeMember" xlink:to="MaximumMember" xlink:title="presentation: RangeMember to MaximumMember" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RangeAxis" xlink:to="RangeMember" xlink:title="presentation: RangeAxis to RangeMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ScheduleOfStockByClassTable" xlink:to="RangeAxis" xlink:title="presentation: ScheduleOfStockByClassTable to RangeAxis" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfStockLineItems" xlink:label="ClassOfStockLineItems" xlink:title="ClassOfStockLineItems" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CommonStockNumberOfSharesParValueAndOtherDisclosuresAbstract" xlink:label="CommonStockNumberOfSharesParValueAndOtherDisclosuresAbstract" xlink:title="CommonStockNumberOfSharesParValueAndOtherDisclosuresAbstract" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_CommonStockThatCanBeSoldTerm" xlink:label="CommonStockThatCanBeSoldTerm" xlink:title="CommonStockThatCanBeSoldTerm" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="CommonStockNumberOfSharesParValueAndOtherDisclosuresAbstract" xlink:to="CommonStockThatCanBeSoldTerm" xlink:title="presentation: CommonStockNumberOfSharesParValueAndOtherDisclosuresAbstract to CommonStockThatCanBeSoldTerm" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_CommonStockThatCanBeSoldValue" xlink:label="CommonStockThatCanBeSoldValue" xlink:title="CommonStockThatCanBeSoldValue" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="CommonStockNumberOfSharesParValueAndOtherDisclosuresAbstract" xlink:to="CommonStockThatCanBeSoldValue" xlink:title="presentation: CommonStockNumberOfSharesParValueAndOtherDisclosuresAbstract to CommonStockThatCanBeSoldValue" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProceedsFromIssuanceOrSaleOfEquity" xlink:label="ProceedsFromIssuanceOrSaleOfEquity" xlink:title="ProceedsFromIssuanceOrSaleOfEquity" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="CommonStockNumberOfSharesParValueAndOtherDisclosuresAbstract" xlink:to="ProceedsFromIssuanceOrSaleOfEquity" xlink:title="presentation: CommonStockNumberOfSharesParValueAndOtherDisclosuresAbstract to ProceedsFromIssuanceOrSaleOfEquity" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SaleOfStockConsiderationReceivedOnTransaction" xlink:label="SaleOfStockConsiderationReceivedOnTransaction" xlink:title="SaleOfStockConsiderationReceivedOnTransaction" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="CommonStockNumberOfSharesParValueAndOtherDisclosuresAbstract" xlink:to="SaleOfStockConsiderationReceivedOnTransaction" xlink:title="presentation: CommonStockNumberOfSharesParValueAndOtherDisclosuresAbstract to SaleOfStockConsiderationReceivedOnTransaction" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesNewIssues" xlink:label="StockIssuedDuringPeriodSharesNewIssues" xlink:title="StockIssuedDuringPeriodSharesNewIssues" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="CommonStockNumberOfSharesParValueAndOtherDisclosuresAbstract" xlink:to="StockIssuedDuringPeriodSharesNewIssues" xlink:title="presentation: CommonStockNumberOfSharesParValueAndOtherDisclosuresAbstract to StockIssuedDuringPeriodSharesNewIssues" order="4.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ClassOfStockLineItems" xlink:to="CommonStockNumberOfSharesParValueAndOtherDisclosuresAbstract" xlink:title="presentation: ClassOfStockLineItems to CommonStockNumberOfSharesParValueAndOtherDisclosuresAbstract" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ScheduleOfStockByClassTable" xlink:to="ClassOfStockLineItems" xlink:title="presentation: ScheduleOfStockByClassTable to ClassOfStockLineItems" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="EquityAbstract" xlink:to="ScheduleOfStockByClassTable" xlink:title="presentation: EquityAbstract to ScheduleOfStockByClassTable" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/EquityCapitalStructureReverseStockSplitDetails">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EquityAbstract" xlink:label="EquityAbstract" xlink:title="EquityAbstract" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_ReverseStockSplitAbstract" xlink:label="ReverseStockSplitAbstract" xlink:title="ReverseStockSplitAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockholdersEquityNoteStockSplitConversionRatio1" xlink:label="StockholdersEquityNoteStockSplitConversionRatio1" xlink:title="StockholdersEquityNoteStockSplitConversionRatio1" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ReverseStockSplitAbstract" xlink:to="StockholdersEquityNoteStockSplitConversionRatio1" xlink:title="presentation: ReverseStockSplitAbstract to StockholdersEquityNoteStockSplitConversionRatio1" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CommonStockSharesOutstanding" xlink:label="CommonStockSharesOutstanding" xlink:title="CommonStockSharesOutstanding" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ReverseStockSplitAbstract" xlink:to="CommonStockSharesOutstanding" xlink:title="presentation: ReverseStockSplitAbstract to CommonStockSharesOutstanding" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CommonStockParOrStatedValuePerShare" xlink:label="CommonStockParOrStatedValuePerShare" xlink:title="CommonStockParOrStatedValuePerShare" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ReverseStockSplitAbstract" xlink:to="CommonStockParOrStatedValuePerShare" xlink:title="presentation: ReverseStockSplitAbstract to CommonStockParOrStatedValuePerShare" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="EquityAbstract" xlink:to="ReverseStockSplitAbstract" xlink:title="presentation: EquityAbstract to ReverseStockSplitAbstract" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/EquityCapitalStructurePreferredSharesDetails">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EquityAbstract" xlink:label="EquityAbstract" xlink:title="EquityAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfStockByClassTable" xlink:label="ScheduleOfStockByClassTable" xlink:title="ScheduleOfStockByClassTable" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementEquityComponentsAxis" xlink:label="StatementEquityComponentsAxis" xlink:title="StatementEquityComponentsAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="EquityComponentDomain" xlink:title="EquityComponentDomain" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CommonStockMember" xlink:label="CommonStockMember" xlink:title="CommonStockMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="EquityComponentDomain" xlink:to="CommonStockMember" xlink:title="presentation: EquityComponentDomain to CommonStockMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StatementEquityComponentsAxis" xlink:to="EquityComponentDomain" xlink:title="presentation: StatementEquityComponentsAxis to EquityComponentDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ScheduleOfStockByClassTable" xlink:to="StatementEquityComponentsAxis" xlink:title="presentation: ScheduleOfStockByClassTable to StatementEquityComponentsAxis" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="StatementClassOfStockAxis" xlink:title="StatementClassOfStockAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="ClassOfStockDomain" xlink:title="ClassOfStockDomain" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SeriesAPreferredStockMember" xlink:label="SeriesAPreferredStockMember" xlink:title="SeriesAPreferredStockMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ClassOfStockDomain" xlink:to="SeriesAPreferredStockMember" xlink:title="presentation: ClassOfStockDomain to SeriesAPreferredStockMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SeriesBPreferredStockMember" xlink:label="SeriesBPreferredStockMember" xlink:title="SeriesBPreferredStockMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ClassOfStockDomain" xlink:to="SeriesBPreferredStockMember" xlink:title="presentation: ClassOfStockDomain to SeriesBPreferredStockMember" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StatementClassOfStockAxis" xlink:to="ClassOfStockDomain" xlink:title="presentation: StatementClassOfStockAxis to ClassOfStockDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ScheduleOfStockByClassTable" xlink:to="StatementClassOfStockAxis" xlink:title="presentation: ScheduleOfStockByClassTable to StatementClassOfStockAxis" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfStockLineItems" xlink:label="ClassOfStockLineItems" xlink:title="ClassOfStockLineItems" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PreferredStockNumberOfSharesParValueAndOtherDisclosuresAbstract" xlink:label="PreferredStockNumberOfSharesParValueAndOtherDisclosuresAbstract" xlink:title="PreferredStockNumberOfSharesParValueAndOtherDisclosuresAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesNewIssues" xlink:label="StockIssuedDuringPeriodSharesNewIssues" xlink:title="StockIssuedDuringPeriodSharesNewIssues" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PreferredStockNumberOfSharesParValueAndOtherDisclosuresAbstract" xlink:to="StockIssuedDuringPeriodSharesNewIssues" xlink:title="presentation: PreferredStockNumberOfSharesParValueAndOtherDisclosuresAbstract to StockIssuedDuringPeriodSharesNewIssues" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PreferredStockDividendRatePercentage" xlink:label="PreferredStockDividendRatePercentage" xlink:title="PreferredStockDividendRatePercentage" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PreferredStockNumberOfSharesParValueAndOtherDisclosuresAbstract" xlink:to="PreferredStockDividendRatePercentage" xlink:title="presentation: PreferredStockNumberOfSharesParValueAndOtherDisclosuresAbstract to PreferredStockDividendRatePercentage" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CommonStockParOrStatedValuePerShare" xlink:label="CommonStockParOrStatedValuePerShare" xlink:title="CommonStockParOrStatedValuePerShare" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PreferredStockNumberOfSharesParValueAndOtherDisclosuresAbstract" xlink:to="CommonStockParOrStatedValuePerShare" xlink:title="presentation: PreferredStockNumberOfSharesParValueAndOtherDisclosuresAbstract to CommonStockParOrStatedValuePerShare" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PreferredStockParOrStatedValuePerShare" xlink:label="PreferredStockParOrStatedValuePerShare" xlink:title="PreferredStockParOrStatedValuePerShare" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PreferredStockNumberOfSharesParValueAndOtherDisclosuresAbstract" xlink:to="PreferredStockParOrStatedValuePerShare" xlink:title="presentation: PreferredStockNumberOfSharesParValueAndOtherDisclosuresAbstract to PreferredStockParOrStatedValuePerShare" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_MandatorilyRedeemablePreferredStockFairValueDisclosure" xlink:label="MandatorilyRedeemablePreferredStockFairValueDisclosure" xlink:title="MandatorilyRedeemablePreferredStockFairValueDisclosure" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PreferredStockNumberOfSharesParValueAndOtherDisclosuresAbstract" xlink:to="MandatorilyRedeemablePreferredStockFairValueDisclosure" xlink:title="presentation: PreferredStockNumberOfSharesParValueAndOtherDisclosuresAbstract to MandatorilyRedeemablePreferredStockFairValueDisclosure" order="4.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ClassOfStockLineItems" xlink:to="PreferredStockNumberOfSharesParValueAndOtherDisclosuresAbstract" xlink:title="presentation: ClassOfStockLineItems to PreferredStockNumberOfSharesParValueAndOtherDisclosuresAbstract" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ScheduleOfStockByClassTable" xlink:to="ClassOfStockLineItems" xlink:title="presentation: ScheduleOfStockByClassTable to ClassOfStockLineItems" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="EquityAbstract" xlink:to="ScheduleOfStockByClassTable" xlink:title="presentation: EquityAbstract to ScheduleOfStockByClassTable" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/EquityCapitalStructureSeriesPreferredSharesAmendmentAndAccumulatedDividendsSettlementDetails">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EquityAbstract" xlink:label="EquityAbstract" xlink:title="EquityAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfStockByClassTable" xlink:label="ScheduleOfStockByClassTable" xlink:title="ScheduleOfStockByClassTable" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementEquityComponentsAxis" xlink:label="StatementEquityComponentsAxis" xlink:title="StatementEquityComponentsAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="EquityComponentDomain" xlink:title="EquityComponentDomain" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CommonStockMember" xlink:label="CommonStockMember" xlink:title="CommonStockMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="EquityComponentDomain" xlink:to="CommonStockMember" xlink:title="presentation: EquityComponentDomain to CommonStockMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RetainedEarningsMember" xlink:label="RetainedEarningsMember" xlink:title="RetainedEarningsMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="EquityComponentDomain" xlink:to="RetainedEarningsMember" xlink:title="presentation: EquityComponentDomain to RetainedEarningsMember" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AdditionalPaidInCapitalMember" xlink:label="AdditionalPaidInCapitalMember" xlink:title="AdditionalPaidInCapitalMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="EquityComponentDomain" xlink:to="AdditionalPaidInCapitalMember" xlink:title="presentation: EquityComponentDomain to AdditionalPaidInCapitalMember" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StatementEquityComponentsAxis" xlink:to="EquityComponentDomain" xlink:title="presentation: StatementEquityComponentsAxis to EquityComponentDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ScheduleOfStockByClassTable" xlink:to="StatementEquityComponentsAxis" xlink:title="presentation: ScheduleOfStockByClassTable to StatementEquityComponentsAxis" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="StatementClassOfStockAxis" xlink:title="StatementClassOfStockAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="ClassOfStockDomain" xlink:title="ClassOfStockDomain" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SeriesAPreferredStockMember" xlink:label="SeriesAPreferredStockMember" xlink:title="SeriesAPreferredStockMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ClassOfStockDomain" xlink:to="SeriesAPreferredStockMember" xlink:title="presentation: ClassOfStockDomain to SeriesAPreferredStockMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StatementClassOfStockAxis" xlink:to="ClassOfStockDomain" xlink:title="presentation: StatementClassOfStockAxis to ClassOfStockDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ScheduleOfStockByClassTable" xlink:to="StatementClassOfStockAxis" xlink:title="presentation: ScheduleOfStockByClassTable to StatementClassOfStockAxis" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfStockLineItems" xlink:label="ClassOfStockLineItems" xlink:title="ClassOfStockLineItems" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PreferredStockNumberOfSharesParValueAndOtherDisclosuresAbstract" xlink:label="PreferredStockNumberOfSharesParValueAndOtherDisclosuresAbstract" xlink:title="PreferredStockNumberOfSharesParValueAndOtherDisclosuresAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PreferredStockAmountOfPreferredDividendsInArrears" xlink:label="PreferredStockAmountOfPreferredDividendsInArrears" xlink:title="PreferredStockAmountOfPreferredDividendsInArrears" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PreferredStockNumberOfSharesParValueAndOtherDisclosuresAbstract" xlink:to="PreferredStockAmountOfPreferredDividendsInArrears" xlink:title="presentation: PreferredStockNumberOfSharesParValueAndOtherDisclosuresAbstract to PreferredStockAmountOfPreferredDividendsInArrears" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesNewIssues" xlink:label="StockIssuedDuringPeriodSharesNewIssues" xlink:title="StockIssuedDuringPeriodSharesNewIssues" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PreferredStockNumberOfSharesParValueAndOtherDisclosuresAbstract" xlink:to="StockIssuedDuringPeriodSharesNewIssues" xlink:title="presentation: PreferredStockNumberOfSharesParValueAndOtherDisclosuresAbstract to StockIssuedDuringPeriodSharesNewIssues" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_CommonStockIssuedUnderSettlementAgreementFairValueDisclosure" xlink:label="CommonStockIssuedUnderSettlementAgreementFairValueDisclosure" xlink:title="CommonStockIssuedUnderSettlementAgreementFairValueDisclosure" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PreferredStockNumberOfSharesParValueAndOtherDisclosuresAbstract" xlink:to="CommonStockIssuedUnderSettlementAgreementFairValueDisclosure" xlink:title="presentation: PreferredStockNumberOfSharesParValueAndOtherDisclosuresAbstract to CommonStockIssuedUnderSettlementAgreementFairValueDisclosure" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_StockDividendWaived" xlink:label="StockDividendWaived" xlink:title="StockDividendWaived" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PreferredStockNumberOfSharesParValueAndOtherDisclosuresAbstract" xlink:to="StockDividendWaived" xlink:title="presentation: PreferredStockNumberOfSharesParValueAndOtherDisclosuresAbstract to StockDividendWaived" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_PreferredStockDividendPaymentDefaultRateMultiplierPreAmendment" xlink:label="PreferredStockDividendPaymentDefaultRateMultiplierPreAmendment" xlink:title="PreferredStockDividendPaymentDefaultRateMultiplierPreAmendment" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PreferredStockNumberOfSharesParValueAndOtherDisclosuresAbstract" xlink:to="PreferredStockDividendPaymentDefaultRateMultiplierPreAmendment" xlink:title="presentation: PreferredStockNumberOfSharesParValueAndOtherDisclosuresAbstract to PreferredStockDividendPaymentDefaultRateMultiplierPreAmendment" order="4.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_PreferredStockDividendPaymentDefaultRateMultiplierPostAmendment" xlink:label="PreferredStockDividendPaymentDefaultRateMultiplierPostAmendment" xlink:title="PreferredStockDividendPaymentDefaultRateMultiplierPostAmendment" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PreferredStockNumberOfSharesParValueAndOtherDisclosuresAbstract" xlink:to="PreferredStockDividendPaymentDefaultRateMultiplierPostAmendment" xlink:title="presentation: PreferredStockNumberOfSharesParValueAndOtherDisclosuresAbstract to PreferredStockDividendPaymentDefaultRateMultiplierPostAmendment" order="5.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_PreferredStockRedemptionPricePerShareCash" xlink:label="PreferredStockRedemptionPricePerShareCash" xlink:title="PreferredStockRedemptionPricePerShareCash" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PreferredStockNumberOfSharesParValueAndOtherDisclosuresAbstract" xlink:to="PreferredStockRedemptionPricePerShareCash" xlink:title="presentation: PreferredStockNumberOfSharesParValueAndOtherDisclosuresAbstract to PreferredStockRedemptionPricePerShareCash" order="6.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_PreferredStockRedemptionPricePerShareOtherThanCash" xlink:label="PreferredStockRedemptionPricePerShareOtherThanCash" xlink:title="PreferredStockRedemptionPricePerShareOtherThanCash" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PreferredStockNumberOfSharesParValueAndOtherDisclosuresAbstract" xlink:to="PreferredStockRedemptionPricePerShareOtherThanCash" xlink:title="presentation: PreferredStockNumberOfSharesParValueAndOtherDisclosuresAbstract to PreferredStockRedemptionPricePerShareOtherThanCash" order="7.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PreferredStockLiquidationPreference" xlink:label="PreferredStockLiquidationPreference" xlink:title="PreferredStockLiquidationPreference" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PreferredStockNumberOfSharesParValueAndOtherDisclosuresAbstract" xlink:to="PreferredStockLiquidationPreference" xlink:title="presentation: PreferredStockNumberOfSharesParValueAndOtherDisclosuresAbstract to PreferredStockLiquidationPreference" order="8.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PreferredStockRedemptionDiscount" xlink:label="PreferredStockRedemptionDiscount" xlink:title="PreferredStockRedemptionDiscount" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PreferredStockNumberOfSharesParValueAndOtherDisclosuresAbstract" xlink:to="PreferredStockRedemptionDiscount" xlink:title="presentation: PreferredStockNumberOfSharesParValueAndOtherDisclosuresAbstract to PreferredStockRedemptionDiscount" order="9.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_PreferredStockMeasurementInputDiscountRate" xlink:label="PreferredStockMeasurementInputDiscountRate" xlink:title="PreferredStockMeasurementInputDiscountRate" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PreferredStockNumberOfSharesParValueAndOtherDisclosuresAbstract" xlink:to="PreferredStockMeasurementInputDiscountRate" xlink:title="presentation: PreferredStockNumberOfSharesParValueAndOtherDisclosuresAbstract to PreferredStockMeasurementInputDiscountRate" order="10.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockRedeemedOrCalledDuringPeriodShares" xlink:label="StockRedeemedOrCalledDuringPeriodShares" xlink:title="StockRedeemedOrCalledDuringPeriodShares" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PreferredStockNumberOfSharesParValueAndOtherDisclosuresAbstract" xlink:to="StockRedeemedOrCalledDuringPeriodShares" xlink:title="presentation: PreferredStockNumberOfSharesParValueAndOtherDisclosuresAbstract to StockRedeemedOrCalledDuringPeriodShares" order="11.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockRedeemedOrCalledDuringPeriodValue" xlink:label="StockRedeemedOrCalledDuringPeriodValue" xlink:title="StockRedeemedOrCalledDuringPeriodValue" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PreferredStockNumberOfSharesParValueAndOtherDisclosuresAbstract" xlink:to="StockRedeemedOrCalledDuringPeriodValue" xlink:title="presentation: PreferredStockNumberOfSharesParValueAndOtherDisclosuresAbstract to StockRedeemedOrCalledDuringPeriodValue" order="12.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_DividendsAccumulatedDueOrOverdue" xlink:label="DividendsAccumulatedDueOrOverdue" xlink:title="DividendsAccumulatedDueOrOverdue" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PreferredStockNumberOfSharesParValueAndOtherDisclosuresAbstract" xlink:to="DividendsAccumulatedDueOrOverdue" xlink:title="presentation: PreferredStockNumberOfSharesParValueAndOtherDisclosuresAbstract to DividendsAccumulatedDueOrOverdue" order="13.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ClassOfStockLineItems" xlink:to="PreferredStockNumberOfSharesParValueAndOtherDisclosuresAbstract" xlink:title="presentation: ClassOfStockLineItems to PreferredStockNumberOfSharesParValueAndOtherDisclosuresAbstract" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ScheduleOfStockByClassTable" xlink:to="ClassOfStockLineItems" xlink:title="presentation: ScheduleOfStockByClassTable to ClassOfStockLineItems" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="EquityAbstract" xlink:to="ScheduleOfStockByClassTable" xlink:title="presentation: EquityAbstract to ScheduleOfStockByClassTable" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/EquityCapitalStructureDescriptionOfSeriesBPreferredSharesDetails">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EquityAbstract" xlink:label="EquityAbstract" xlink:title="EquityAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfStockByClassTable" xlink:label="ScheduleOfStockByClassTable" xlink:title="ScheduleOfStockByClassTable" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="StatementClassOfStockAxis" xlink:title="StatementClassOfStockAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="ClassOfStockDomain" xlink:title="ClassOfStockDomain" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SeriesBPreferredStockMember" xlink:label="SeriesBPreferredStockMember" xlink:title="SeriesBPreferredStockMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ClassOfStockDomain" xlink:to="SeriesBPreferredStockMember" xlink:title="presentation: ClassOfStockDomain to SeriesBPreferredStockMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StatementClassOfStockAxis" xlink:to="ClassOfStockDomain" xlink:title="presentation: StatementClassOfStockAxis to ClassOfStockDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ScheduleOfStockByClassTable" xlink:to="StatementClassOfStockAxis" xlink:title="presentation: ScheduleOfStockByClassTable to StatementClassOfStockAxis" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfStockLineItems" xlink:label="ClassOfStockLineItems" xlink:title="ClassOfStockLineItems" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PreferredStockNumberOfSharesParValueAndOtherDisclosuresAbstract" xlink:label="PreferredStockNumberOfSharesParValueAndOtherDisclosuresAbstract" xlink:title="PreferredStockNumberOfSharesParValueAndOtherDisclosuresAbstract" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_PreferredStockVotingPowerInNumberOfCommonShares" xlink:label="PreferredStockVotingPowerInNumberOfCommonShares" xlink:title="PreferredStockVotingPowerInNumberOfCommonShares" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PreferredStockNumberOfSharesParValueAndOtherDisclosuresAbstract" xlink:to="PreferredStockVotingPowerInNumberOfCommonShares" xlink:title="presentation: PreferredStockNumberOfSharesParValueAndOtherDisclosuresAbstract to PreferredStockVotingPowerInNumberOfCommonShares" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_PreferredStockVotingRightsNumberOfVotes" xlink:label="PreferredStockVotingRightsNumberOfVotes" xlink:title="PreferredStockVotingRightsNumberOfVotes" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PreferredStockNumberOfSharesParValueAndOtherDisclosuresAbstract" xlink:to="PreferredStockVotingRightsNumberOfVotes" xlink:title="presentation: PreferredStockNumberOfSharesParValueAndOtherDisclosuresAbstract to PreferredStockVotingRightsNumberOfVotes" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ClassOfStockLineItems" xlink:to="PreferredStockNumberOfSharesParValueAndOtherDisclosuresAbstract" xlink:title="presentation: ClassOfStockLineItems to PreferredStockNumberOfSharesParValueAndOtherDisclosuresAbstract" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ScheduleOfStockByClassTable" xlink:to="ClassOfStockLineItems" xlink:title="presentation: ScheduleOfStockByClassTable to ClassOfStockLineItems" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="EquityAbstract" xlink:to="ScheduleOfStockByClassTable" xlink:title="presentation: EquityAbstract to ScheduleOfStockByClassTable" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/CommitmentsAndContingenciesDetails">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CommitmentsAndContingenciesDisclosureAbstract" xlink:label="CommitmentsAndContingenciesDisclosureAbstract" xlink:title="CommitmentsAndContingenciesDisclosureAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PurchaseCommitmentExcludingLongtermCommitmentTable" xlink:label="PurchaseCommitmentExcludingLongtermCommitmentTable" xlink:title="PurchaseCommitmentExcludingLongtermCommitmentTable" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PurchaseCommitmentExcludingLongtermCommitmentAxis" xlink:label="PurchaseCommitmentExcludingLongtermCommitmentAxis" xlink:title="PurchaseCommitmentExcludingLongtermCommitmentAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PurchaseCommitmentExcludingLongtermCommitmentDomain" xlink:label="PurchaseCommitmentExcludingLongtermCommitmentDomain" xlink:title="PurchaseCommitmentExcludingLongtermCommitmentDomain" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PurchaseCommitmentMember" xlink:label="PurchaseCommitmentMember" xlink:title="PurchaseCommitmentMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PurchaseCommitmentExcludingLongtermCommitmentDomain" xlink:to="PurchaseCommitmentMember" xlink:title="presentation: PurchaseCommitmentExcludingLongtermCommitmentDomain to PurchaseCommitmentMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PurchaseCommitmentExcludingLongtermCommitmentAxis" xlink:to="PurchaseCommitmentExcludingLongtermCommitmentDomain" xlink:title="presentation: PurchaseCommitmentExcludingLongtermCommitmentAxis to PurchaseCommitmentExcludingLongtermCommitmentDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PurchaseCommitmentExcludingLongtermCommitmentTable" xlink:to="PurchaseCommitmentExcludingLongtermCommitmentAxis" xlink:title="presentation: PurchaseCommitmentExcludingLongtermCommitmentTable to PurchaseCommitmentExcludingLongtermCommitmentAxis" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PurchaseCommitmentExcludingLongtermCommitmentLineItems" xlink:label="PurchaseCommitmentExcludingLongtermCommitmentLineItems" xlink:title="PurchaseCommitmentExcludingLongtermCommitmentLineItems" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherCommitmentsAbstract" xlink:label="OtherCommitmentsAbstract" xlink:title="OtherCommitmentsAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PurchaseCommitmentRemainingMinimumAmountCommitted" xlink:label="PurchaseCommitmentRemainingMinimumAmountCommitted" xlink:title="PurchaseCommitmentRemainingMinimumAmountCommitted" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="OtherCommitmentsAbstract" xlink:to="PurchaseCommitmentRemainingMinimumAmountCommitted" xlink:title="presentation: OtherCommitmentsAbstract to PurchaseCommitmentRemainingMinimumAmountCommitted" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ForeignCurrencyExchangeRateTranslation1" xlink:label="ForeignCurrencyExchangeRateTranslation1" xlink:title="ForeignCurrencyExchangeRateTranslation1" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="OtherCommitmentsAbstract" xlink:to="ForeignCurrencyExchangeRateTranslation1" xlink:title="presentation: OtherCommitmentsAbstract to ForeignCurrencyExchangeRateTranslation1" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ContractualObligationDueInNextTwelveMonths" xlink:label="ContractualObligationDueInNextTwelveMonths" xlink:title="ContractualObligationDueInNextTwelveMonths" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="OtherCommitmentsAbstract" xlink:to="ContractualObligationDueInNextTwelveMonths" xlink:title="presentation: OtherCommitmentsAbstract to ContractualObligationDueInNextTwelveMonths" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ContractualObligationDueInSecondYear" xlink:label="ContractualObligationDueInSecondYear" xlink:title="ContractualObligationDueInSecondYear" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="OtherCommitmentsAbstract" xlink:to="ContractualObligationDueInSecondYear" xlink:title="presentation: OtherCommitmentsAbstract to ContractualObligationDueInSecondYear" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PurchaseCommitmentExcludingLongtermCommitmentLineItems" xlink:to="OtherCommitmentsAbstract" xlink:title="presentation: PurchaseCommitmentExcludingLongtermCommitmentLineItems to OtherCommitmentsAbstract" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PurchaseCommitmentExcludingLongtermCommitmentTable" xlink:to="PurchaseCommitmentExcludingLongtermCommitmentLineItems" xlink:title="presentation: PurchaseCommitmentExcludingLongtermCommitmentTable to PurchaseCommitmentExcludingLongtermCommitmentLineItems" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="CommitmentsAndContingenciesDisclosureAbstract" xlink:to="PurchaseCommitmentExcludingLongtermCommitmentTable" xlink:title="presentation: CommitmentsAndContingenciesDisclosureAbstract to PurchaseCommitmentExcludingLongtermCommitmentTable" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeAndExpensesLessorAbstract" xlink:label="IncomeAndExpensesLessorAbstract" xlink:title="IncomeAndExpensesLessorAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LessorOperatingLeasePaymentsToBeReceivedNextTwelveMonths" xlink:label="LessorOperatingLeasePaymentsToBeReceivedNextTwelveMonths" xlink:title="LessorOperatingLeasePaymentsToBeReceivedNextTwelveMonths" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IncomeAndExpensesLessorAbstract" xlink:to="LessorOperatingLeasePaymentsToBeReceivedNextTwelveMonths" xlink:title="presentation: IncomeAndExpensesLessorAbstract to LessorOperatingLeasePaymentsToBeReceivedNextTwelveMonths" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LessorOperatingLeasePaymentsToBeReceived" xlink:label="LessorOperatingLeasePaymentsToBeReceived" xlink:title="LessorOperatingLeasePaymentsToBeReceived" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IncomeAndExpensesLessorAbstract" xlink:to="LessorOperatingLeasePaymentsToBeReceived" xlink:title="presentation: IncomeAndExpensesLessorAbstract to LessorOperatingLeasePaymentsToBeReceived" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="CommitmentsAndContingenciesDisclosureAbstract" xlink:to="IncomeAndExpensesLessorAbstract" xlink:title="presentation: CommitmentsAndContingenciesDisclosureAbstract to IncomeAndExpensesLessorAbstract" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/EarningsLossPerShareDetails">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EarningsPerShareAbstract" xlink:label="EarningsPerShareAbstract" xlink:title="EarningsPerShareAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="NetIncomeLoss" xlink:title="NetIncomeLoss" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="EarningsPerShareAbstract" xlink:to="NetIncomeLoss" xlink:title="presentation: EarningsPerShareAbstract to NetIncomeLoss" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ComprehensiveIncomeNetOfTax" xlink:label="ComprehensiveIncomeNetOfTax" xlink:title="ComprehensiveIncomeNetOfTax" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="EarningsPerShareAbstract" xlink:to="ComprehensiveIncomeNetOfTax" xlink:title="presentation: EarningsPerShareAbstract to ComprehensiveIncomeNetOfTax" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherPreferredStockDividendsAndAdjustments" xlink:label="OtherPreferredStockDividendsAndAdjustments" xlink:title="OtherPreferredStockDividendsAndAdjustments" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="EarningsPerShareAbstract" xlink:to="OtherPreferredStockDividendsAndAdjustments" xlink:title="presentation: EarningsPerShareAbstract to OtherPreferredStockDividendsAndAdjustments" order="2.0" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PreferredStockRedemptionDiscount" xlink:label="PreferredStockRedemptionDiscount" xlink:title="PreferredStockRedemptionDiscount" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="EarningsPerShareAbstract" xlink:to="PreferredStockRedemptionDiscount" xlink:title="presentation: EarningsPerShareAbstract to PreferredStockRedemptionDiscount" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PreferredStockDividendsIncomeStatementImpact" xlink:label="PreferredStockDividendsIncomeStatementImpact" xlink:title="PreferredStockDividendsIncomeStatementImpact" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="EarningsPerShareAbstract" xlink:to="PreferredStockDividendsIncomeStatementImpact" xlink:title="presentation: EarningsPerShareAbstract to PreferredStockDividendsIncomeStatementImpact" order="4.0" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic" xlink:label="NetIncomeLossAvailableToCommonStockholdersBasic" xlink:title="NetIncomeLossAvailableToCommonStockholdersBasic" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="EarningsPerShareAbstract" xlink:to="NetIncomeLossAvailableToCommonStockholdersBasic" xlink:title="presentation: EarningsPerShareAbstract to NetIncomeLossAvailableToCommonStockholdersBasic" order="5.0" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:label="WeightedAverageNumberOfSharesOutstandingBasic" xlink:title="WeightedAverageNumberOfSharesOutstandingBasic" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="EarningsPerShareAbstract" xlink:to="WeightedAverageNumberOfSharesOutstandingBasic" xlink:title="presentation: EarningsPerShareAbstract to WeightedAverageNumberOfSharesOutstandingBasic" order="6.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EarningsPerShareBasic" xlink:label="EarningsPerShareBasic" xlink:title="EarningsPerShareBasic" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="EarningsPerShareAbstract" xlink:to="EarningsPerShareBasic" xlink:title="presentation: EarningsPerShareAbstract to EarningsPerShareBasic" order="7.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment" xlink:label="WeightedAverageNumberDilutedSharesOutstandingAdjustment" xlink:title="WeightedAverageNumberDilutedSharesOutstandingAdjustment" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="EarningsPerShareAbstract" xlink:to="WeightedAverageNumberDilutedSharesOutstandingAdjustment" xlink:title="presentation: EarningsPerShareAbstract to WeightedAverageNumberDilutedSharesOutstandingAdjustment" order="8.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:label="WeightedAverageNumberOfDilutedSharesOutstanding" xlink:title="WeightedAverageNumberOfDilutedSharesOutstanding" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="EarningsPerShareAbstract" xlink:to="WeightedAverageNumberOfDilutedSharesOutstanding" xlink:title="presentation: EarningsPerShareAbstract to WeightedAverageNumberOfDilutedSharesOutstanding" order="9.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EarningsPerShareDiluted" xlink:label="EarningsPerShareDiluted" xlink:title="EarningsPerShareDiluted" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="EarningsPerShareAbstract" xlink:to="EarningsPerShareDiluted" xlink:title="presentation: EarningsPerShareAbstract to EarningsPerShareDiluted" order="10.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/VesselRevenuesDetails">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RevenueFromContractWithCustomerAbstract" xlink:label="RevenueFromContractWithCustomerAbstract" xlink:title="RevenueFromContractWithCustomerAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DisaggregationOfRevenueTable" xlink:label="DisaggregationOfRevenueTable" xlink:title="DisaggregationOfRevenueTable" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_ProductOrServiceAxis" xlink:label="ProductOrServiceAxis" xlink:title="ProductOrServiceAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_ProductsAndServicesDomain" xlink:label="ProductsAndServicesDomain" xlink:title="ProductsAndServicesDomain" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_TimeCharterMember" xlink:label="TimeCharterMember" xlink:title="TimeCharterMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ProductsAndServicesDomain" xlink:to="TimeCharterMember" xlink:title="presentation: ProductsAndServicesDomain to TimeCharterMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_VoyageCharterMember" xlink:label="VoyageCharterMember" xlink:title="VoyageCharterMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ProductsAndServicesDomain" xlink:to="VoyageCharterMember" xlink:title="presentation: ProductsAndServicesDomain to VoyageCharterMember" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_PoolAgreementsMember" xlink:label="PoolAgreementsMember" xlink:title="PoolAgreementsMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ProductsAndServicesDomain" xlink:to="PoolAgreementsMember" xlink:title="presentation: ProductsAndServicesDomain to PoolAgreementsMember" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ProductOrServiceAxis" xlink:to="ProductsAndServicesDomain" xlink:title="presentation: ProductOrServiceAxis to ProductsAndServicesDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DisaggregationOfRevenueTable" xlink:to="ProductOrServiceAxis" xlink:title="presentation: DisaggregationOfRevenueTable to ProductOrServiceAxis" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DisaggregationOfRevenueLineItems" xlink:label="DisaggregationOfRevenueLineItems" xlink:title="DisaggregationOfRevenueLineItems" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DisaggregationOfRevenueAbstract" xlink:label="DisaggregationOfRevenueAbstract" xlink:title="DisaggregationOfRevenueAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OperatingLeaseLeaseIncome" xlink:label="OperatingLeaseLeaseIncome" xlink:title="OperatingLeaseLeaseIncome" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DisaggregationOfRevenueAbstract" xlink:to="OperatingLeaseLeaseIncome" xlink:title="presentation: DisaggregationOfRevenueAbstract to OperatingLeaseLeaseIncome" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DisaggregationOfRevenueLineItems" xlink:to="DisaggregationOfRevenueAbstract" xlink:title="presentation: DisaggregationOfRevenueLineItems to DisaggregationOfRevenueAbstract" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DisaggregationOfRevenueTable" xlink:to="DisaggregationOfRevenueLineItems" xlink:title="presentation: DisaggregationOfRevenueTable to DisaggregationOfRevenueLineItems" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RevenueFromContractWithCustomerAbstract" xlink:to="DisaggregationOfRevenueTable" xlink:title="presentation: RevenueFromContractWithCustomerAbstract to DisaggregationOfRevenueTable" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsReceivable" xlink:label="IncreaseDecreaseInAccountsReceivable" xlink:title="IncreaseDecreaseInAccountsReceivable" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RevenueFromContractWithCustomerAbstract" xlink:to="IncreaseDecreaseInAccountsReceivable" xlink:title="presentation: RevenueFromContractWithCustomerAbstract to IncreaseDecreaseInAccountsReceivable" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInDeferredRevenue" xlink:label="IncreaseDecreaseInDeferredRevenue" xlink:title="IncreaseDecreaseInDeferredRevenue" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RevenueFromContractWithCustomerAbstract" xlink:to="IncreaseDecreaseInDeferredRevenue" xlink:title="presentation: RevenueFromContractWithCustomerAbstract to IncreaseDecreaseInDeferredRevenue" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CapitalizedContractCostNetCurrent" xlink:label="CapitalizedContractCostNetCurrent" xlink:title="CapitalizedContractCostNetCurrent" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RevenueFromContractWithCustomerAbstract" xlink:to="CapitalizedContractCostNetCurrent" xlink:title="presentation: RevenueFromContractWithCustomerAbstract to CapitalizedContractCostNetCurrent" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ContractWithCustomerLiabilityCurrent" xlink:label="ContractWithCustomerLiabilityCurrent" xlink:title="ContractWithCustomerLiabilityCurrent" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RevenueFromContractWithCustomerAbstract" xlink:to="ContractWithCustomerLiabilityCurrent" xlink:title="presentation: RevenueFromContractWithCustomerAbstract to ContractWithCustomerLiabilityCurrent" order="4.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_DemurrageIncome" xlink:label="DemurrageIncome" xlink:title="DemurrageIncome" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="RevenueFromContractWithCustomerAbstract" xlink:to="DemurrageIncome" xlink:title="presentation: RevenueFromContractWithCustomerAbstract to DemurrageIncome" order="5.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/VesselOperatingAndVoyageExpensesDetails">
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_VesselOperatingAndVoyageExpensesAbstract" xlink:label="VesselOperatingAndVoyageExpensesAbstract" xlink:title="VesselOperatingAndVoyageExpensesAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OperatingCostsAndExpensesAbstract" xlink:label="OperatingCostsAndExpensesAbstract" xlink:title="OperatingCostsAndExpensesAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LaborAndRelatedExpense" xlink:label="LaborAndRelatedExpense" xlink:title="LaborAndRelatedExpense" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="OperatingCostsAndExpensesAbstract" xlink:to="LaborAndRelatedExpense" xlink:title="presentation: OperatingCostsAndExpensesAbstract to LaborAndRelatedExpense" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_VesselRepairAndMaintenanceExpenses" xlink:label="VesselRepairAndMaintenanceExpenses" xlink:title="VesselRepairAndMaintenanceExpenses" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="OperatingCostsAndExpensesAbstract" xlink:to="VesselRepairAndMaintenanceExpenses" xlink:title="presentation: OperatingCostsAndExpensesAbstract to VesselRepairAndMaintenanceExpenses" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_LubricantExpenses" xlink:label="LubricantExpenses" xlink:title="LubricantExpenses" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="OperatingCostsAndExpensesAbstract" xlink:to="LubricantExpenses" xlink:title="presentation: OperatingCostsAndExpensesAbstract to LubricantExpenses" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_GeneralInsuranceExpense" xlink:label="GeneralInsuranceExpense" xlink:title="GeneralInsuranceExpense" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="OperatingCostsAndExpensesAbstract" xlink:to="GeneralInsuranceExpense" xlink:title="presentation: OperatingCostsAndExpensesAbstract to GeneralInsuranceExpense" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_TaxesExcludingIncomeAndExciseTaxes" xlink:label="TaxesExcludingIncomeAndExciseTaxes" xlink:title="TaxesExcludingIncomeAndExciseTaxes" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="OperatingCostsAndExpensesAbstract" xlink:to="TaxesExcludingIncomeAndExciseTaxes" xlink:title="presentation: OperatingCostsAndExpensesAbstract to TaxesExcludingIncomeAndExciseTaxes" order="4.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherCostAndExpenseOperating" xlink:label="OtherCostAndExpenseOperating" xlink:title="OtherCostAndExpenseOperating" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="OperatingCostsAndExpensesAbstract" xlink:to="OtherCostAndExpenseOperating" xlink:title="presentation: OperatingCostsAndExpensesAbstract to OtherCostAndExpenseOperating" order="5.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OperatingCostsAndExpenses" xlink:label="OperatingCostsAndExpenses" xlink:title="OperatingCostsAndExpenses" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="OperatingCostsAndExpensesAbstract" xlink:to="OperatingCostsAndExpenses" xlink:title="presentation: OperatingCostsAndExpensesAbstract to OperatingCostsAndExpenses" order="6.0" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="VesselOperatingAndVoyageExpensesAbstract" xlink:to="OperatingCostsAndExpensesAbstract" xlink:title="presentation: VesselOperatingAndVoyageExpensesAbstract to OperatingCostsAndExpensesAbstract" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_VoyageExpenseAbstract" xlink:label="VoyageExpenseAbstract" xlink:title="VoyageExpenseAbstract" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_BrokerageCommissions" xlink:label="BrokerageCommissions" xlink:title="BrokerageCommissions" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="VoyageExpenseAbstract" xlink:to="BrokerageCommissions" xlink:title="presentation: VoyageExpenseAbstract to BrokerageCommissions" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_BrokerageCommissionsRelatedParty" xlink:label="BrokerageCommissionsRelatedParty" xlink:title="BrokerageCommissionsRelatedParty" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="VoyageExpenseAbstract" xlink:to="BrokerageCommissionsRelatedParty" xlink:title="presentation: VoyageExpenseAbstract to BrokerageCommissionsRelatedParty" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_PortAndOtherExpenses" xlink:label="PortAndOtherExpenses" xlink:title="PortAndOtherExpenses" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="VoyageExpenseAbstract" xlink:to="PortAndOtherExpenses" xlink:title="presentation: VoyageExpenseAbstract to PortAndOtherExpenses" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_BunkersConsumption" xlink:label="BunkersConsumption" xlink:title="BunkersConsumption" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="VoyageExpenseAbstract" xlink:to="BunkersConsumption" xlink:title="presentation: VoyageExpenseAbstract to BunkersConsumption" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_LossGainOnBunkerFuel" xlink:label="LossGainOnBunkerFuel" xlink:title="LossGainOnBunkerFuel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="VoyageExpenseAbstract" xlink:to="LossGainOnBunkerFuel" xlink:title="presentation: VoyageExpenseAbstract to LossGainOnBunkerFuel" order="4.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_VoyageExpenses" xlink:label="VoyageExpenses" xlink:title="VoyageExpenses" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="VoyageExpenseAbstract" xlink:to="VoyageExpenses" xlink:title="presentation: VoyageExpenseAbstract to VoyageExpenses" order="5.0" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="VesselOperatingAndVoyageExpensesAbstract" xlink:to="VoyageExpenseAbstract" xlink:title="presentation: VesselOperatingAndVoyageExpensesAbstract to VoyageExpenseAbstract" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/GeneralAndAdministrativeExpensesDetails">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_GeneralAndAdministrativeExpenseAbstract" xlink:label="GeneralAndAdministrativeExpenseAbstract" xlink:title="GeneralAndAdministrativeExpenseAbstract" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_AuditFees" xlink:label="AuditFees" xlink:title="AuditFees" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="GeneralAndAdministrativeExpenseAbstract" xlink:to="AuditFees" xlink:title="presentation: GeneralAndAdministrativeExpenseAbstract to AuditFees" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OfficersCompensation" xlink:label="OfficersCompensation" xlink:title="OfficersCompensation" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="GeneralAndAdministrativeExpenseAbstract" xlink:to="OfficersCompensation" xlink:title="presentation: GeneralAndAdministrativeExpenseAbstract to OfficersCompensation" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_ProfessionalFeesOther" xlink:label="ProfessionalFeesOther" xlink:title="ProfessionalFeesOther" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="GeneralAndAdministrativeExpenseAbstract" xlink:to="ProfessionalFeesOther" xlink:title="presentation: GeneralAndAdministrativeExpenseAbstract to ProfessionalFeesOther" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RelatedPartyTransactionSellingGeneralAndAdministrativeExpensesFromTransactionsWithRelatedParty" xlink:label="RelatedPartyTransactionSellingGeneralAndAdministrativeExpensesFromTransactionsWithRelatedParty" xlink:title="RelatedPartyTransactionSellingGeneralAndAdministrativeExpensesFromTransactionsWithRelatedParty" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="GeneralAndAdministrativeExpenseAbstract" xlink:to="RelatedPartyTransactionSellingGeneralAndAdministrativeExpensesFromTransactionsWithRelatedParty" xlink:title="presentation: GeneralAndAdministrativeExpenseAbstract to RelatedPartyTransactionSellingGeneralAndAdministrativeExpensesFromTransactionsWithRelatedParty" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_GeneralAndAdministrativeExpense" xlink:label="GeneralAndAdministrativeExpense" xlink:title="GeneralAndAdministrativeExpense" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="GeneralAndAdministrativeExpenseAbstract" xlink:to="GeneralAndAdministrativeExpense" xlink:title="presentation: GeneralAndAdministrativeExpenseAbstract to GeneralAndAdministrativeExpense" order="4.0" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_PublicRegistrationCosts" xlink:label="PublicRegistrationCosts" xlink:title="PublicRegistrationCosts" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="GeneralAndAdministrativeExpenseAbstract" xlink:to="PublicRegistrationCosts" xlink:title="presentation: GeneralAndAdministrativeExpenseAbstract to PublicRegistrationCosts" order="5.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CommonStockSharesIssued" xlink:label="CommonStockSharesIssued" xlink:title="CommonStockSharesIssued" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="GeneralAndAdministrativeExpenseAbstract" xlink:to="CommonStockSharesIssued" xlink:title="presentation: GeneralAndAdministrativeExpenseAbstract to CommonStockSharesIssued" order="6.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CommonStockSharesOutstanding" xlink:label="CommonStockSharesOutstanding" xlink:title="CommonStockSharesOutstanding" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="GeneralAndAdministrativeExpenseAbstract" xlink:to="CommonStockSharesOutstanding" xlink:title="presentation: GeneralAndAdministrativeExpenseAbstract to CommonStockSharesOutstanding" order="7.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/InterestAndFinanceCostsDetails">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InterestAndDebtExpenseAbstract" xlink:label="InterestAndDebtExpenseAbstract" xlink:title="InterestAndDebtExpenseAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InterestExpenseDebt" xlink:label="InterestExpenseDebt" xlink:title="InterestExpenseDebt" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="InterestAndDebtExpenseAbstract" xlink:to="InterestExpenseDebt" xlink:title="presentation: InterestAndDebtExpenseAbstract to InterestExpenseDebt" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InterestExpenseRelatedParty" xlink:label="InterestExpenseRelatedParty" xlink:title="InterestExpenseRelatedParty" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="InterestAndDebtExpenseAbstract" xlink:to="InterestExpenseRelatedParty" xlink:title="presentation: InterestAndDebtExpenseAbstract to InterestExpenseRelatedParty" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PaidInKindInterest" xlink:label="PaidInKindInterest" xlink:title="PaidInKindInterest" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="InterestAndDebtExpenseAbstract" xlink:to="PaidInKindInterest" xlink:title="presentation: InterestAndDebtExpenseAbstract to PaidInKindInterest" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_AmortizationAndWriteOffOfDeferredDebtIssuanceCosts" xlink:label="AmortizationAndWriteOffOfDeferredDebtIssuanceCosts" xlink:title="AmortizationAndWriteOffOfDeferredDebtIssuanceCosts" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="InterestAndDebtExpenseAbstract" xlink:to="AmortizationAndWriteOffOfDeferredDebtIssuanceCosts" xlink:title="presentation: InterestAndDebtExpenseAbstract to AmortizationAndWriteOffOfDeferredDebtIssuanceCosts" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_AmortizationAndWriteOffOfConvertibleNotesBeneficialConversionFeature" xlink:label="AmortizationAndWriteOffOfConvertibleNotesBeneficialConversionFeature" xlink:title="AmortizationAndWriteOffOfConvertibleNotesBeneficialConversionFeature" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="InterestAndDebtExpenseAbstract" xlink:to="AmortizationAndWriteOffOfConvertibleNotesBeneficialConversionFeature" xlink:title="presentation: InterestAndDebtExpenseAbstract to AmortizationAndWriteOffOfConvertibleNotesBeneficialConversionFeature" order="4.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InterestExpenseOther" xlink:label="InterestExpenseOther" xlink:title="InterestExpenseOther" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="InterestAndDebtExpenseAbstract" xlink:to="InterestExpenseOther" xlink:title="presentation: InterestAndDebtExpenseAbstract to InterestExpenseOther" order="5.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InterestExpense" xlink:label="InterestExpense" xlink:title="InterestExpense" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="InterestAndDebtExpenseAbstract" xlink:to="InterestExpense" xlink:title="presentation: InterestAndDebtExpenseAbstract to InterestExpense" order="6.0" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/IncomeTaxesDetails">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeTaxDisclosureAbstract" xlink:label="IncomeTaxDisclosureAbstract" xlink:title="IncomeTaxDisclosureAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="IncomeTaxExpenseBenefit" xlink:title="IncomeTaxExpenseBenefit" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IncomeTaxDisclosureAbstract" xlink:to="IncomeTaxExpenseBenefit" xlink:title="presentation: IncomeTaxDisclosureAbstract to IncomeTaxExpenseBenefit" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/SegmentInformationInformationAboutCompanySReportableSegmentsDetails">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SegmentReportingAbstract" xlink:label="SegmentReportingAbstract" xlink:title="SegmentReportingAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NumberOfReportableSegments" xlink:label="NumberOfReportableSegments" xlink:title="NumberOfReportableSegments" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="SegmentReportingAbstract" xlink:to="NumberOfReportableSegments" xlink:title="presentation: SegmentReportingAbstract to NumberOfReportableSegments" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable" xlink:label="ScheduleOfSegmentReportingInformationBySegmentTable" xlink:title="ScheduleOfSegmentReportingInformationBySegmentTable" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_ConsolidationItemsAxis" xlink:label="ConsolidationItemsAxis" xlink:title="ConsolidationItemsAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_ConsolidationItemsDomain" xlink:label="ConsolidationItemsDomain" xlink:title="ConsolidationItemsDomain" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OperatingSegmentsMember" xlink:label="OperatingSegmentsMember" xlink:title="OperatingSegmentsMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ConsolidationItemsDomain" xlink:to="OperatingSegmentsMember" xlink:title="presentation: ConsolidationItemsDomain to OperatingSegmentsMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CorporateNonSegmentMember" xlink:label="CorporateNonSegmentMember" xlink:title="CorporateNonSegmentMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ConsolidationItemsDomain" xlink:to="CorporateNonSegmentMember" xlink:title="presentation: ConsolidationItemsDomain to CorporateNonSegmentMember" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ConsolidationItemsAxis" xlink:to="ConsolidationItemsDomain" xlink:title="presentation: ConsolidationItemsAxis to ConsolidationItemsDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ScheduleOfSegmentReportingInformationBySegmentTable" xlink:to="ConsolidationItemsAxis" xlink:title="presentation: ScheduleOfSegmentReportingInformationBySegmentTable to ConsolidationItemsAxis" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementBusinessSegmentsAxis" xlink:label="StatementBusinessSegmentsAxis" xlink:title="StatementBusinessSegmentsAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SegmentDomain" xlink:label="SegmentDomain" xlink:title="SegmentDomain" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_DryBulkSegmentMember" xlink:label="DryBulkSegmentMember" xlink:title="DryBulkSegmentMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="SegmentDomain" xlink:to="DryBulkSegmentMember" xlink:title="presentation: SegmentDomain to DryBulkSegmentMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_AframaxLR2TankerSegmentMember" xlink:label="AframaxLR2TankerSegmentMember" xlink:title="AframaxLR2TankerSegmentMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="SegmentDomain" xlink:to="AframaxLR2TankerSegmentMember" xlink:title="presentation: SegmentDomain to AframaxLR2TankerSegmentMember" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_HandysizeTankerSegmentMember" xlink:label="HandysizeTankerSegmentMember" xlink:title="HandysizeTankerSegmentMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="SegmentDomain" xlink:to="HandysizeTankerSegmentMember" xlink:title="presentation: SegmentDomain to HandysizeTankerSegmentMember" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StatementBusinessSegmentsAxis" xlink:to="SegmentDomain" xlink:title="presentation: StatementBusinessSegmentsAxis to SegmentDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ScheduleOfSegmentReportingInformationBySegmentTable" xlink:to="StatementBusinessSegmentsAxis" xlink:title="presentation: ScheduleOfSegmentReportingInformationBySegmentTable to StatementBusinessSegmentsAxis" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_ProductOrServiceAxis" xlink:label="ProductOrServiceAxis" xlink:title="ProductOrServiceAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_ProductsAndServicesDomain" xlink:label="ProductsAndServicesDomain" xlink:title="ProductsAndServicesDomain" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_TimeCharterMember" xlink:label="TimeCharterMember" xlink:title="TimeCharterMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ProductsAndServicesDomain" xlink:to="TimeCharterMember" xlink:title="presentation: ProductsAndServicesDomain to TimeCharterMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_VoyageCharterMember" xlink:label="VoyageCharterMember" xlink:title="VoyageCharterMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ProductsAndServicesDomain" xlink:to="VoyageCharterMember" xlink:title="presentation: ProductsAndServicesDomain to VoyageCharterMember" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_PoolAgreementsMember" xlink:label="PoolAgreementsMember" xlink:title="PoolAgreementsMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ProductsAndServicesDomain" xlink:to="PoolAgreementsMember" xlink:title="presentation: ProductsAndServicesDomain to PoolAgreementsMember" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ProductOrServiceAxis" xlink:to="ProductsAndServicesDomain" xlink:title="presentation: ProductOrServiceAxis to ProductsAndServicesDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ScheduleOfSegmentReportingInformationBySegmentTable" xlink:to="ProductOrServiceAxis" xlink:title="presentation: ScheduleOfSegmentReportingInformationBySegmentTable to ProductOrServiceAxis" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SegmentReportingInformationLineItems" xlink:label="SegmentReportingInformationLineItems" xlink:title="SegmentReportingInformationLineItems" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SegmentReportingInformationProfitLossAbstract" xlink:label="SegmentReportingInformationProfitLossAbstract" xlink:title="SegmentReportingInformationProfitLossAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OperatingLeaseLeaseIncome" xlink:label="OperatingLeaseLeaseIncome" xlink:title="OperatingLeaseLeaseIncome" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="SegmentReportingInformationProfitLossAbstract" xlink:to="OperatingLeaseLeaseIncome" xlink:title="presentation: SegmentReportingInformationProfitLossAbstract to OperatingLeaseLeaseIncome" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_VoyageExpenses" xlink:label="VoyageExpenses" xlink:title="VoyageExpenses" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="SegmentReportingInformationProfitLossAbstract" xlink:to="VoyageExpenses" xlink:title="presentation: SegmentReportingInformationProfitLossAbstract to VoyageExpenses" order="1.0" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OperatingCostsAndExpenses" xlink:label="OperatingCostsAndExpenses" xlink:title="OperatingCostsAndExpenses" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="SegmentReportingInformationProfitLossAbstract" xlink:to="OperatingCostsAndExpenses" xlink:title="presentation: SegmentReportingInformationProfitLossAbstract to OperatingCostsAndExpenses" order="2.0" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_RelatedPartyTransactionManagementFees" xlink:label="RelatedPartyTransactionManagementFees" xlink:title="RelatedPartyTransactionManagementFees" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="SegmentReportingInformationProfitLossAbstract" xlink:to="RelatedPartyTransactionManagementFees" xlink:title="presentation: SegmentReportingInformationProfitLossAbstract to RelatedPartyTransactionManagementFees" order="3.0" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DepreciationDepletionAndAmortization" xlink:label="DepreciationDepletionAndAmortization" xlink:title="DepreciationDepletionAndAmortization" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="SegmentReportingInformationProfitLossAbstract" xlink:to="DepreciationDepletionAndAmortization" xlink:title="presentation: SegmentReportingInformationProfitLossAbstract to DepreciationDepletionAndAmortization" order="4.0" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProvisionForDoubtfulAccounts" xlink:label="ProvisionForDoubtfulAccounts" xlink:title="ProvisionForDoubtfulAccounts" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="SegmentReportingInformationProfitLossAbstract" xlink:to="ProvisionForDoubtfulAccounts" xlink:title="presentation: SegmentReportingInformationProfitLossAbstract to ProvisionForDoubtfulAccounts" order="5.0" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OperatingIncomeLoss" xlink:label="OperatingIncomeLoss" xlink:title="OperatingIncomeLoss" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="SegmentReportingInformationProfitLossAbstract" xlink:to="OperatingIncomeLoss" xlink:title="presentation: SegmentReportingInformationProfitLossAbstract to OperatingIncomeLoss" order="6.0" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_GeneralAndAdministrativeExpense" xlink:label="GeneralAndAdministrativeExpense" xlink:title="GeneralAndAdministrativeExpense" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="SegmentReportingInformationProfitLossAbstract" xlink:to="GeneralAndAdministrativeExpense" xlink:title="presentation: SegmentReportingInformationProfitLossAbstract to GeneralAndAdministrativeExpense" order="7.0" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="SegmentReportingInformationLineItems" xlink:to="SegmentReportingInformationProfitLossAbstract" xlink:title="presentation: SegmentReportingInformationLineItems to SegmentReportingInformationProfitLossAbstract" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ScheduleOfSegmentReportingInformationBySegmentTable" xlink:to="SegmentReportingInformationLineItems" xlink:title="presentation: ScheduleOfSegmentReportingInformationBySegmentTable to SegmentReportingInformationLineItems" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="SegmentReportingAbstract" xlink:to="ScheduleOfSegmentReportingInformationBySegmentTable" xlink:title="presentation: SegmentReportingAbstract to ScheduleOfSegmentReportingInformationBySegmentTable" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/SegmentInformationReconciliationOfTotalSegmentAssetsToTotalAssetsDetails">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SegmentReportingAbstract" xlink:label="SegmentReportingAbstract" xlink:title="SegmentReportingAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ReconciliationOfAssetsFromSegmentToConsolidatedTable" xlink:label="ReconciliationOfAssetsFromSegmentToConsolidatedTable" xlink:title="ReconciliationOfAssetsFromSegmentToConsolidatedTable" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_ConsolidationItemsAxis" xlink:label="ConsolidationItemsAxis" xlink:title="ConsolidationItemsAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_ConsolidationItemsDomain" xlink:label="ConsolidationItemsDomain" xlink:title="ConsolidationItemsDomain" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OperatingSegmentsMember" xlink:label="OperatingSegmentsMember" xlink:title="OperatingSegmentsMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ConsolidationItemsDomain" xlink:to="OperatingSegmentsMember" xlink:title="presentation: ConsolidationItemsDomain to OperatingSegmentsMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_MaterialReconcilingItemsMember" xlink:label="MaterialReconcilingItemsMember" xlink:title="MaterialReconcilingItemsMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ConsolidationItemsDomain" xlink:to="MaterialReconcilingItemsMember" xlink:title="presentation: ConsolidationItemsDomain to MaterialReconcilingItemsMember" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ConsolidationItemsAxis" xlink:to="ConsolidationItemsDomain" xlink:title="presentation: ConsolidationItemsAxis to ConsolidationItemsDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ReconciliationOfAssetsFromSegmentToConsolidatedTable" xlink:to="ConsolidationItemsAxis" xlink:title="presentation: ReconciliationOfAssetsFromSegmentToConsolidatedTable to ConsolidationItemsAxis" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementBusinessSegmentsAxis" xlink:label="StatementBusinessSegmentsAxis" xlink:title="StatementBusinessSegmentsAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SegmentDomain" xlink:label="SegmentDomain" xlink:title="SegmentDomain" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_DryBulkSegmentMember" xlink:label="DryBulkSegmentMember" xlink:title="DryBulkSegmentMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="SegmentDomain" xlink:to="DryBulkSegmentMember" xlink:title="presentation: SegmentDomain to DryBulkSegmentMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_AframaxLR2TankerSegmentMember" xlink:label="AframaxLR2TankerSegmentMember" xlink:title="AframaxLR2TankerSegmentMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="SegmentDomain" xlink:to="AframaxLR2TankerSegmentMember" xlink:title="presentation: SegmentDomain to AframaxLR2TankerSegmentMember" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_HandysizeTankerSegmentMember" xlink:label="HandysizeTankerSegmentMember" xlink:title="HandysizeTankerSegmentMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="SegmentDomain" xlink:to="HandysizeTankerSegmentMember" xlink:title="presentation: SegmentDomain to HandysizeTankerSegmentMember" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="StatementBusinessSegmentsAxis" xlink:to="SegmentDomain" xlink:title="presentation: StatementBusinessSegmentsAxis to SegmentDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ReconciliationOfAssetsFromSegmentToConsolidatedTable" xlink:to="StatementBusinessSegmentsAxis" xlink:title="presentation: ReconciliationOfAssetsFromSegmentToConsolidatedTable to StatementBusinessSegmentsAxis" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SegmentReportingAssetReconcilingItemLineItems" xlink:label="SegmentReportingAssetReconcilingItemLineItems" xlink:title="SegmentReportingAssetReconcilingItemLineItems" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ReconciliationFromSegmentTotalsToConsolidatedAbstract" xlink:label="ReconciliationFromSegmentTotalsToConsolidatedAbstract" xlink:title="ReconciliationFromSegmentTotalsToConsolidatedAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_Assets" xlink:label="Assets" xlink:title="Assets" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ReconciliationFromSegmentTotalsToConsolidatedAbstract" xlink:to="Assets" xlink:title="presentation: ReconciliationFromSegmentTotalsToConsolidatedAbstract to Assets" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="CashAndCashEquivalentsAtCarryingValue" xlink:title="CashAndCashEquivalentsAtCarryingValue" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ReconciliationFromSegmentTotalsToConsolidatedAbstract" xlink:to="CashAndCashEquivalentsAtCarryingValue" xlink:title="presentation: ReconciliationFromSegmentTotalsToConsolidatedAbstract to CashAndCashEquivalentsAtCarryingValue" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PrepaidExpenseAndOtherAssetsCurrent" xlink:label="PrepaidExpenseAndOtherAssetsCurrent" xlink:title="PrepaidExpenseAndOtherAssetsCurrent" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ReconciliationFromSegmentTotalsToConsolidatedAbstract" xlink:to="PrepaidExpenseAndOtherAssetsCurrent" xlink:title="presentation: ReconciliationFromSegmentTotalsToConsolidatedAbstract to PrepaidExpenseAndOtherAssetsCurrent" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="SegmentReportingAssetReconcilingItemLineItems" xlink:to="ReconciliationFromSegmentTotalsToConsolidatedAbstract" xlink:title="presentation: SegmentReportingAssetReconcilingItemLineItems to ReconciliationFromSegmentTotalsToConsolidatedAbstract" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ReconciliationOfAssetsFromSegmentToConsolidatedTable" xlink:to="SegmentReportingAssetReconcilingItemLineItems" xlink:title="presentation: ReconciliationOfAssetsFromSegmentToConsolidatedTable to SegmentReportingAssetReconcilingItemLineItems" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="SegmentReportingAbstract" xlink:to="ReconciliationOfAssetsFromSegmentToConsolidatedTable" xlink:title="presentation: SegmentReportingAbstract to ReconciliationOfAssetsFromSegmentToConsolidatedTable" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
  </link:presentationLink>
  <link:presentationLink xlink:type="extended" xlink:role="http://castormaritime.com/role/SubsequentEventsDetails">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SubsequentEventsAbstract" xlink:label="SubsequentEventsAbstract" xlink:title="SubsequentEventsAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SubsequentEventTable" xlink:label="SubsequentEventTable" xlink:title="SubsequentEventTable" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SubsequentEventTypeAxis" xlink:label="SubsequentEventTypeAxis" xlink:title="SubsequentEventTypeAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SubsequentEventTypeDomain" xlink:label="SubsequentEventTypeDomain" xlink:title="SubsequentEventTypeDomain" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SubsequentEventMember" xlink:label="SubsequentEventMember" xlink:title="SubsequentEventMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="SubsequentEventTypeDomain" xlink:to="SubsequentEventMember" xlink:title="presentation: SubsequentEventTypeDomain to SubsequentEventMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="SubsequentEventTypeAxis" xlink:to="SubsequentEventTypeDomain" xlink:title="presentation: SubsequentEventTypeAxis to SubsequentEventTypeDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="SubsequentEventTable" xlink:to="SubsequentEventTypeAxis" xlink:title="presentation: SubsequentEventTable to SubsequentEventTypeAxis" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:label="PropertyPlantAndEquipmentByTypeAxis" xlink:title="PropertyPlantAndEquipmentByTypeAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:label="PropertyPlantAndEquipmentTypeDomain" xlink:title="PropertyPlantAndEquipmentTypeDomain" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_MagicCallistoMember" xlink:label="MagicCallistoMember" xlink:title="MagicCallistoMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentTypeDomain" xlink:to="MagicCallistoMember" xlink:title="presentation: PropertyPlantAndEquipmentTypeDomain to MagicCallistoMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentByTypeAxis" xlink:to="PropertyPlantAndEquipmentTypeDomain" xlink:title="presentation: PropertyPlantAndEquipmentByTypeAxis to PropertyPlantAndEquipmentTypeDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="SubsequentEventTable" xlink:to="PropertyPlantAndEquipmentByTypeAxis" xlink:title="presentation: SubsequentEventTable to PropertyPlantAndEquipmentByTypeAxis" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentAxis" xlink:label="DebtInstrumentAxis" xlink:title="DebtInstrumentAxis" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentNameDomain" xlink:label="DebtInstrumentNameDomain" xlink:title="DebtInstrumentNameDomain" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_SeniorSecuredTeamLoanFacilityDeutscheBankAGMember" xlink:label="SeniorSecuredTeamLoanFacilityDeutscheBankAGMember" xlink:title="SeniorSecuredTeamLoanFacilityDeutscheBankAGMember" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentNameDomain" xlink:to="SeniorSecuredTeamLoanFacilityDeutscheBankAGMember" xlink:title="presentation: DebtInstrumentNameDomain to SeniorSecuredTeamLoanFacilityDeutscheBankAGMember" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="DebtInstrumentAxis" xlink:to="DebtInstrumentNameDomain" xlink:title="presentation: DebtInstrumentAxis to DebtInstrumentNameDomain" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="SubsequentEventTable" xlink:to="DebtInstrumentAxis" xlink:title="presentation: SubsequentEventTable to DebtInstrumentAxis" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SubsequentEventLineItems" xlink:label="SubsequentEventLineItems" xlink:title="SubsequentEventLineItems" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNetAbstract" xlink:label="PropertyPlantAndEquipmentNetAbstract" xlink:title="PropertyPlantAndEquipmentNetAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentAdditions" xlink:label="PropertyPlantAndEquipmentAdditions" xlink:title="PropertyPlantAndEquipmentAdditions" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="PropertyPlantAndEquipmentNetAbstract" xlink:to="PropertyPlantAndEquipmentAdditions" xlink:title="presentation: PropertyPlantAndEquipmentNetAbstract to PropertyPlantAndEquipmentAdditions" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="SubsequentEventLineItems" xlink:to="PropertyPlantAndEquipmentNetAbstract" xlink:title="presentation: SubsequentEventLineItems to PropertyPlantAndEquipmentNetAbstract" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LongTermDebtByCurrentAndNoncurrentAbstract" xlink:label="LongTermDebtByCurrentAndNoncurrentAbstract" xlink:title="LongTermDebtByCurrentAndNoncurrentAbstract" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentFaceAmount" xlink:label="DebtInstrumentFaceAmount" xlink:title="DebtInstrumentFaceAmount" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="LongTermDebtByCurrentAndNoncurrentAbstract" xlink:to="DebtInstrumentFaceAmount" xlink:title="presentation: LongTermDebtByCurrentAndNoncurrentAbstract to DebtInstrumentFaceAmount" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_NumberOfShipOwningSubsidiariesEnteringIntoTermLoanFacility" xlink:label="NumberOfShipOwningSubsidiariesEnteringIntoTermLoanFacility" xlink:title="NumberOfShipOwningSubsidiariesEnteringIntoTermLoanFacility" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="LongTermDebtByCurrentAndNoncurrentAbstract" xlink:to="NumberOfShipOwningSubsidiariesEnteringIntoTermLoanFacility" xlink:title="presentation: LongTermDebtByCurrentAndNoncurrentAbstract to NumberOfShipOwningSubsidiariesEnteringIntoTermLoanFacility" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentTerm" xlink:label="DebtInstrumentTerm" xlink:title="DebtInstrumentTerm" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="LongTermDebtByCurrentAndNoncurrentAbstract" xlink:to="DebtInstrumentTerm" xlink:title="presentation: LongTermDebtByCurrentAndNoncurrentAbstract to DebtInstrumentTerm" order="2.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_DebtInstrumentTrailingPeriodToMaintainEBITDAToNetInterestExpenseRatio" xlink:label="DebtInstrumentTrailingPeriodToMaintainEBITDAToNetInterestExpenseRatio" xlink:title="DebtInstrumentTrailingPeriodToMaintainEBITDAToNetInterestExpenseRatio" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="LongTermDebtByCurrentAndNoncurrentAbstract" xlink:to="DebtInstrumentTrailingPeriodToMaintainEBITDAToNetInterestExpenseRatio" xlink:title="presentation: LongTermDebtByCurrentAndNoncurrentAbstract to DebtInstrumentTrailingPeriodToMaintainEBITDAToNetInterestExpenseRatio" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:loc xlink:type="locator" xlink:href="ctrm-20211231.xsd#ctrm_DebtInstrumentNumberOfTranches" xlink:label="DebtInstrumentNumberOfTranches" xlink:title="DebtInstrumentNumberOfTranches" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="LongTermDebtByCurrentAndNoncurrentAbstract" xlink:to="DebtInstrumentNumberOfTranches" xlink:title="presentation: LongTermDebtByCurrentAndNoncurrentAbstract to DebtInstrumentNumberOfTranches" order="4.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="SubsequentEventLineItems" xlink:to="LongTermDebtByCurrentAndNoncurrentAbstract" xlink:title="presentation: SubsequentEventLineItems to LongTermDebtByCurrentAndNoncurrentAbstract" order="1.0" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="SubsequentEventTable" xlink:to="SubsequentEventLineItems" xlink:title="presentation: SubsequentEventTable to SubsequentEventLineItems" order="3.0" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" />
    <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="SubsequentEventsAbstract" xlink:to="SubsequentEventTable" xlink:title="presentation: SubsequentEventsAbstract to SubsequentEventTable" order="0.0" preferredLabel="http://www.xbrl.org/2003/role/label" />
  </link:presentationLink>
</link:linkbase>
