<?xml version="1.0" encoding="UTF-8"?>
<edgarSubmission xmlns="http://www.sec.gov/edgar/twentyfourf2filer" xmlns:feec="http://www.sec.gov/edgar/feecommon">
  <schemaVersion>X0101</schemaVersion>
  <headerData>
    <submissionType>24F-2NT</submissionType>
    <filerInfo>
      <liveTestFlag>LIVE</liveTestFlag>
      <filer>
        <issuerCredentials>
          <cik>0000797923</cik>
          <ccc>XXXXXXXX</ccc>
        </issuerCredentials>
      </filer>
      <flags>
        <overrideInternetFlag>false</overrideInternetFlag>
        <confirmingCopyFlag>false</confirmingCopyFlag>
      </flags>
      <investmentCompanyType>N-1A</investmentCompanyType>
    </filerInfo>
  </headerData>
  <formData>
    <annualFilings>
      <annualFilingInfo>
        <item1>
          <nameOfIssuer>BNY Mellon Opportunistic Municipal Securities Fund</nameOfIssuer>
          <addressOfIssuer>
            <street1>240 Greenwich Street</street1>
            <city>New York</city>
            <state>NY</state>
            <country>X1</country>
            <zipCode>10286</zipCode>
          </addressOfIssuer>
        </item1>
        <item2>
          <reportSeriesClass>
            <rptSeriesClassInfo>
              <seriesName>BNY Mellon Opportunistic Municipal Securities Fund</seriesName>
              <seriesId>S000000090</seriesId>
              <classInfo>
                <className>Class A</className>
                <classId>C000000131</classId>
              </classInfo>
            </rptSeriesClassInfo>
          </reportSeriesClass>
        </item2>
        <item3>
          <investmentCompActFileNo>811-04764</investmentCompActFileNo>
          <securitiesActFileNumbers>
            <securitiesActFileNo>
              <fileNumber>033-07496</fileNumber>
            </securitiesActFileNo>
          </securitiesActFileNumbers>
        </item3>
        <item4>
          <lastDayOfFiscalYear>04/30/2022</lastDayOfFiscalYear>
          <isThisFormBeingFiledLate>false</isThisFormBeingFiledLate>
        </item4>
        <item5>
          <seriesOrClassId>C000000131</seriesOrClassId>
          <aggregateSalePriceOfSecuritiesSold>30269268.00</aggregateSalePriceOfSecuritiesSold>
          <aggregatePriceOfSecuritiesRedeemedOrRepurchasedInFiscalYear>36144145.00</aggregatePriceOfSecuritiesRedeemedOrRepurchasedInFiscalYear>
          <aggregatePriceOfSecuritiesRedeemedOrRepurchasedAnyPrior>314389608.00</aggregatePriceOfSecuritiesRedeemedOrRepurchasedAnyPrior>
          <totalAvailableRedemptionCredits>350533753.00</totalAvailableRedemptionCredits>
          <netSales>0.00</netSales>
          <redemptionCreditsAvailableForUseInFutureYears>(320264485.00)</redemptionCreditsAvailableForUseInFutureYears>
          <multiplierForDeterminingRegistrationFee>0.0000927</multiplierForDeterminingRegistrationFee>
          <registrationFeeDue>0.00</registrationFeeDue>
        </item5>
        <item6>
          <amountOfSecuritiesDeducted>0.00</amountOfSecuritiesDeducted>
          <numberOfSharesOrOtherUnitsRemainingUnsold>0.00</numberOfSharesOrOtherUnitsRemainingUnsold>
        </item6>
        <item7>
          <interestDue>0.00</interestDue>
        </item7>
        <item8>
          <totalOfRegistrationFeePlusAnyInterestDue>0.00</totalOfRegistrationFeePlusAnyInterestDue>
        </item8>
        <signature>
          <signature>/s/ Deirdre Cunnane</signature>
          <nameAndTitle>Deirdre Cunnane, Vice President and Assistant Secretary</nameAndTitle>
          <signatureDate>07/14/2022</signatureDate>
        </signature>
      </annualFilingInfo>
      <annualFilingInfo>
        <item1>
          <nameOfIssuer>BNY Mellon Opportunistic Municipal Securities Fund</nameOfIssuer>
          <addressOfIssuer>
            <street1>240 Greenwich Street</street1>
            <city>New York</city>
            <state>NY</state>
            <country>X1</country>
            <zipCode>10286</zipCode>
          </addressOfIssuer>
        </item1>
        <item2>
          <reportSeriesClass>
            <rptSeriesClassInfo>
              <seriesName>BNY Mellon Opportunistic Municipal Securities Fund</seriesName>
              <seriesId>S000000090</seriesId>
              <classInfo>
                <className>Class C</className>
                <classId>C000000133</classId>
              </classInfo>
            </rptSeriesClassInfo>
          </reportSeriesClass>
        </item2>
        <item3>
          <investmentCompActFileNo>811-04764</investmentCompActFileNo>
          <securitiesActFileNumbers>
            <securitiesActFileNo>
              <fileNumber>033-07496</fileNumber>
            </securitiesActFileNo>
          </securitiesActFileNumbers>
        </item3>
        <item4>
          <lastDayOfFiscalYear>04/30/2022</lastDayOfFiscalYear>
          <isThisFormBeingFiledLate>false</isThisFormBeingFiledLate>
        </item4>
        <item5>
          <seriesOrClassId>C000000133</seriesOrClassId>
          <aggregateSalePriceOfSecuritiesSold>815940.00</aggregateSalePriceOfSecuritiesSold>
          <aggregatePriceOfSecuritiesRedeemedOrRepurchasedInFiscalYear>1496345.00</aggregatePriceOfSecuritiesRedeemedOrRepurchasedInFiscalYear>
          <aggregatePriceOfSecuritiesRedeemedOrRepurchasedAnyPrior>10281073.00</aggregatePriceOfSecuritiesRedeemedOrRepurchasedAnyPrior>
          <totalAvailableRedemptionCredits>11777418.00</totalAvailableRedemptionCredits>
          <netSales>0.00</netSales>
          <redemptionCreditsAvailableForUseInFutureYears>(10961478.00)</redemptionCreditsAvailableForUseInFutureYears>
          <multiplierForDeterminingRegistrationFee>0.0000927</multiplierForDeterminingRegistrationFee>
          <registrationFeeDue>0.00</registrationFeeDue>
        </item5>
        <item6>
          <amountOfSecuritiesDeducted>0.00</amountOfSecuritiesDeducted>
          <numberOfSharesOrOtherUnitsRemainingUnsold>0.00</numberOfSharesOrOtherUnitsRemainingUnsold>
        </item6>
        <item7>
          <interestDue>0.00</interestDue>
        </item7>
        <item8>
          <totalOfRegistrationFeePlusAnyInterestDue>0.00</totalOfRegistrationFeePlusAnyInterestDue>
        </item8>
        <signature>
          <signature>/s/ Deirdre Cunnane</signature>
          <nameAndTitle>Deirdre Cunnane, Vice President and Assistant Secretary</nameAndTitle>
          <signatureDate>07/14/2022</signatureDate>
        </signature>
      </annualFilingInfo>
      <annualFilingInfo>
        <item1>
          <nameOfIssuer>BNY Mellon Opportunistic Municipal Securities Fund</nameOfIssuer>
          <addressOfIssuer>
            <street1>240 Greenwich Street</street1>
            <city>New York</city>
            <state>NY</state>
            <country>X1</country>
            <zipCode>10286</zipCode>
          </addressOfIssuer>
        </item1>
        <item2>
          <reportSeriesClass>
            <rptSeriesClassInfo>
              <seriesName>BNY Mellon Opportunistic Municipal Securities Fund</seriesName>
              <seriesId>S000000090</seriesId>
              <classInfo>
                <className>Class Z</className>
                <classId>C000001400</classId>
              </classInfo>
            </rptSeriesClassInfo>
          </reportSeriesClass>
        </item2>
        <item3>
          <investmentCompActFileNo>811-04764</investmentCompActFileNo>
          <securitiesActFileNumbers>
            <securitiesActFileNo>
              <fileNumber>033-07496</fileNumber>
            </securitiesActFileNo>
          </securitiesActFileNumbers>
        </item3>
        <item4>
          <lastDayOfFiscalYear>04/30/2022</lastDayOfFiscalYear>
          <isThisFormBeingFiledLate>false</isThisFormBeingFiledLate>
        </item4>
        <item5>
          <seriesOrClassId>C000001400</seriesOrClassId>
          <aggregateSalePriceOfSecuritiesSold>5843087.00</aggregateSalePriceOfSecuritiesSold>
          <aggregatePriceOfSecuritiesRedeemedOrRepurchasedInFiscalYear>15430865.00</aggregatePriceOfSecuritiesRedeemedOrRepurchasedInFiscalYear>
          <aggregatePriceOfSecuritiesRedeemedOrRepurchasedAnyPrior>180074134.00</aggregatePriceOfSecuritiesRedeemedOrRepurchasedAnyPrior>
          <totalAvailableRedemptionCredits>195504999.00</totalAvailableRedemptionCredits>
          <netSales>0.00</netSales>
          <redemptionCreditsAvailableForUseInFutureYears>(189661912.00)</redemptionCreditsAvailableForUseInFutureYears>
          <multiplierForDeterminingRegistrationFee>0.0000927</multiplierForDeterminingRegistrationFee>
          <registrationFeeDue>0.00</registrationFeeDue>
        </item5>
        <item6>
          <amountOfSecuritiesDeducted>0.00</amountOfSecuritiesDeducted>
          <numberOfSharesOrOtherUnitsRemainingUnsold>0.00</numberOfSharesOrOtherUnitsRemainingUnsold>
        </item6>
        <item7>
          <interestDue>0.00</interestDue>
        </item7>
        <item8>
          <totalOfRegistrationFeePlusAnyInterestDue>0.00</totalOfRegistrationFeePlusAnyInterestDue>
        </item8>
        <signature>
          <signature>/s/ Deirdre Cunnane</signature>
          <nameAndTitle>Deirdre Cunnane, Vice President and Assistant Secretary</nameAndTitle>
          <signatureDate>07/14/2022</signatureDate>
        </signature>
      </annualFilingInfo>
      <annualFilingInfo>
        <item1>
          <nameOfIssuer>BNY Mellon Opportunistic Municipal Securities Fund</nameOfIssuer>
          <addressOfIssuer>
            <street1>240 Greenwich Street</street1>
            <city>New York</city>
            <state>NY</state>
            <country>X1</country>
            <zipCode>10286</zipCode>
          </addressOfIssuer>
        </item1>
        <item2>
          <reportSeriesClass>
            <rptSeriesClassInfo>
              <seriesName>BNY Mellon Opportunistic Municipal Securities Fund</seriesName>
              <seriesId>S000000090</seriesId>
              <classInfo>
                <className>Class I</className>
                <classId>C000173300</classId>
              </classInfo>
            </rptSeriesClassInfo>
          </reportSeriesClass>
        </item2>
        <item3>
          <investmentCompActFileNo>811-04764</investmentCompActFileNo>
          <securitiesActFileNumbers>
            <securitiesActFileNo>
              <fileNumber>033-07496</fileNumber>
            </securitiesActFileNo>
          </securitiesActFileNumbers>
        </item3>
        <item4>
          <lastDayOfFiscalYear>04/30/2022</lastDayOfFiscalYear>
          <isThisFormBeingFiledLate>false</isThisFormBeingFiledLate>
        </item4>
        <item5>
          <seriesOrClassId>C000173300</seriesOrClassId>
          <aggregateSalePriceOfSecuritiesSold>102149100.00</aggregateSalePriceOfSecuritiesSold>
          <aggregatePriceOfSecuritiesRedeemedOrRepurchasedInFiscalYear>40433858.00</aggregatePriceOfSecuritiesRedeemedOrRepurchasedInFiscalYear>
          <aggregatePriceOfSecuritiesRedeemedOrRepurchasedAnyPrior>0.00</aggregatePriceOfSecuritiesRedeemedOrRepurchasedAnyPrior>
          <totalAvailableRedemptionCredits>40433858.00</totalAvailableRedemptionCredits>
          <netSales>61715242.00</netSales>
          <redemptionCreditsAvailableForUseInFutureYears>0.00</redemptionCreditsAvailableForUseInFutureYears>
          <multiplierForDeterminingRegistrationFee>0.0000927</multiplierForDeterminingRegistrationFee>
          <registrationFeeDue>5721.00</registrationFeeDue>
        </item5>
        <item6>
          <amountOfSecuritiesDeducted>0.00</amountOfSecuritiesDeducted>
          <numberOfSharesOrOtherUnitsRemainingUnsold>0.00</numberOfSharesOrOtherUnitsRemainingUnsold>
        </item6>
        <item7>
          <interestDue>0.00</interestDue>
        </item7>
        <item8>
          <totalOfRegistrationFeePlusAnyInterestDue>5721.00</totalOfRegistrationFeePlusAnyInterestDue>
        </item8>
        <signature>
          <signature>/s/ Deirdre Cunnane</signature>
          <nameAndTitle>Deirdre Cunnane, Vice President and Assistant Secretary</nameAndTitle>
          <signatureDate>07/14/2022</signatureDate>
        </signature>
      </annualFilingInfo>
      <annualFilingInfo>
        <item1>
          <nameOfIssuer>BNY Mellon Opportunistic Municipal Securities Fund</nameOfIssuer>
          <addressOfIssuer>
            <street1>240 Greenwich Street</street1>
            <city>New York</city>
            <state>NY</state>
            <country>X1</country>
            <zipCode>10286</zipCode>
          </addressOfIssuer>
        </item1>
        <item2>
          <reportSeriesClass>
            <rptSeriesClassInfo>
              <seriesName>BNY Mellon Opportunistic Municipal Securities Fund</seriesName>
              <seriesId>S000000090</seriesId>
              <classInfo>
                <className>Class Y</className>
                <classId>C000173299</classId>
              </classInfo>
            </rptSeriesClassInfo>
          </reportSeriesClass>
        </item2>
        <item3>
          <investmentCompActFileNo>811-04764</investmentCompActFileNo>
          <securitiesActFileNumbers>
            <securitiesActFileNo>
              <fileNumber>033-07496</fileNumber>
            </securitiesActFileNo>
          </securitiesActFileNumbers>
        </item3>
        <item4>
          <lastDayOfFiscalYear>04/30/2022</lastDayOfFiscalYear>
          <isThisFormBeingFiledLate>false</isThisFormBeingFiledLate>
        </item4>
        <item5>
          <seriesOrClassId>C000173299</seriesOrClassId>
          <aggregateSalePriceOfSecuritiesSold>0.00</aggregateSalePriceOfSecuritiesSold>
          <aggregatePriceOfSecuritiesRedeemedOrRepurchasedInFiscalYear>0.00</aggregatePriceOfSecuritiesRedeemedOrRepurchasedInFiscalYear>
          <aggregatePriceOfSecuritiesRedeemedOrRepurchasedAnyPrior>0.00</aggregatePriceOfSecuritiesRedeemedOrRepurchasedAnyPrior>
          <totalAvailableRedemptionCredits>0.00</totalAvailableRedemptionCredits>
          <netSales>0.00</netSales>
          <redemptionCreditsAvailableForUseInFutureYears>0.00</redemptionCreditsAvailableForUseInFutureYears>
          <multiplierForDeterminingRegistrationFee>0.0000927</multiplierForDeterminingRegistrationFee>
          <registrationFeeDue>0.00</registrationFeeDue>
        </item5>
        <item6>
          <amountOfSecuritiesDeducted>0.00</amountOfSecuritiesDeducted>
          <numberOfSharesOrOtherUnitsRemainingUnsold>0.00</numberOfSharesOrOtherUnitsRemainingUnsold>
        </item6>
        <item7>
          <interestDue>0.00</interestDue>
        </item7>
        <item8>
          <totalOfRegistrationFeePlusAnyInterestDue>0.00</totalOfRegistrationFeePlusAnyInterestDue>
        </item8>
        <signature>
          <signature>/s/ Deirdre Cunnane</signature>
          <nameAndTitle>Deirdre Cunnane, Vice President and Assistant Secretary</nameAndTitle>
          <signatureDate>07/14/2022</signatureDate>
        </signature>
      </annualFilingInfo>
    </annualFilings>
  </formData>
</edgarSubmission>
