<?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/nport" xmlns:com="http://www.sec.gov/edgar/common" xmlns:ncom="http://www.sec.gov/edgar/nportcommon" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.sec.gov/edgar/nport eis_NPORT_Filer.xsd">
  <headerData>
    <submissionType>NPORT-P</submissionType>
    <isConfidential>false</isConfidential>
    <filerInfo>

      <filer>
        <issuerCredentials>
          <cik>0001469192</cik>
          <ccc>XXXXXXXX</ccc>
        </issuerCredentials>
      </filer>


      <seriesClassInfo>
        <seriesId>S000073437</seriesId>
        <classId>C000230342</classId>
        <classId>C000230338</classId>
        <classId>C000230336</classId>
        <classId>C000230340</classId>
        <classId>C000230339</classId>
      </seriesClassInfo>


    </filerInfo>
  </headerData>
  <formData>
    <genInfo>
      <regName>MAINSTAY FUNDS TRUST</regName>
      <regFileNumber>811-22321</regFileNumber>
      <regCik>0001469192</regCik>
      <regLei>549300SQRLBSUG7RD002</regLei>
      <regStreet1>51 Madison Avenue</regStreet1>
      <regCity>New York</regCity>
      <regStateConditional regCountry="US" regState="US-NY"/>
      <regZipOrPostalCode>10010</regZipOrPostalCode>
      <regPhone>212-576-7000</regPhone>
      <seriesName>MainStay ESG Multi-Asset Allocation Fund</seriesName>
      <seriesId>S000073437</seriesId>
      <seriesLei>549300IPCGW8VN07QV13</seriesLei>
      <repPdEnd>2024-04-30</repPdEnd>
      <repPdDate>2023-07-31</repPdDate>
      <isFinalFiling>N</isFinalFiling>
    </genInfo>
    <fundInfo>
      <totAssets>15016228.02</totAssets>
      <totLiabs>2054163.43</totLiabs>
      <netAssets>12962064.59</netAssets>
      <assetsAttrMiscSec>0.00000000</assetsAttrMiscSec>
      <assetsInvested>0.00000000</assetsInvested>
      <amtPayOneYrBanksBorr>0.00000000</amtPayOneYrBanksBorr>
      <amtPayOneYrCtrldComp>0.00000000</amtPayOneYrCtrldComp>
      <amtPayOneYrOthAffil>0.00000000</amtPayOneYrOthAffil>
      <amtPayOneYrOther>0.00000000</amtPayOneYrOther>
      <amtPayAftOneYrBanksBorr>0.00000000</amtPayAftOneYrBanksBorr>
      <amtPayAftOneYrCtrldComp>0.00000000</amtPayAftOneYrCtrldComp>
      <amtPayAftOneYrOthAffil>0.00000000</amtPayAftOneYrOthAffil>
      <amtPayAftOneYrOther>0.00000000</amtPayAftOneYrOther>
      <delayDeliv>0.00000000</delayDeliv>
      <standByCommit>0.00000000</standByCommit>
      <liquidPref>0.00000000</liquidPref>
      <cshNotRptdInCorD>1156.61999999</cshNotRptdInCorD>
      <borrowers>
        <borrower aggrVal="41883.00000000" lei="BFM8T61CT2L1QCEMIK50" name="UBS AG LONDON BRANCH"/>
        <borrower aggrVal="41910.45000000" lei="549300QQRY1JCFQHYS08" name="Janney Montgomery Scott, LLC"/>
        <borrower aggrVal="1008768.07000000" lei="549300HN4UKV1E2R3U73" name="BOFA SECURITIES, INC."/>
        <borrower aggrVal="924780.41840000" lei="549300RA02N3BNSWBV74" name="Virtu AMERICAS LLC"/>
      </borrowers>
      <aggregateCondition isNonCashCollateral="Y">
        <aggregateInfos>
          <aggregateInfo amt="43904.45020000" collatrl="41786.84590000">
            <invstCat>UST</invstCat>
          </aggregateInfo>
        </aggregateInfos>
      </aggregateCondition>
      <returnInfo>
        <monthlyTotReturns>
          <monthlyTotReturn classId="C000230342" rtn1="-1.24000000" rtn2="3.76000000" rtn3="2.20000000"/>
          <monthlyTotReturn classId="C000230338" rtn1="-1.24000000" rtn2="3.53000000" rtn3="2.20000000"/>
          <monthlyTotReturn classId="C000230336" rtn1="-1.24000000" rtn2="3.65000000" rtn3="2.09000000"/>
          <monthlyTotReturn classId="C000230340" rtn1="-1.35000000" rtn2="3.54000000" rtn3="2.21000000"/>
          <monthlyTotReturn classId="C000230339" rtn1="-1.24000000" rtn2="3.64000000" rtn3="2.20000000"/>
        </monthlyTotReturns>
        <monthlyReturnCats>
          <commodityContracts>
            <mon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            <mon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            <mon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            <forwardCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </forwardCategory>
            <futureCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </futureCategory>
            <optionCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </optionCategory>
            <swaptionCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </swaptionCategory>
            <swapCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </swapCategory>
            <warrantCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </warrantCategory>
            <otherCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </otherCategory>
          </commodityContracts>
          <creditContracts>
            <mon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            <mon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            <mon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            <forwardCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </forwardCategory>
            <futureCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </futureCategory>
            <optionCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </optionCategory>
            <swaptionCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </swaptionCategory>
            <swapCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </swapCategory>
            <warrantCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </warrantCategory>
            <otherCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </otherCategory>
          </creditContracts>
          <equityContracts>
            <mon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            <mon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            <mon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            <forwardCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </forwardCategory>
            <futureCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </futureCategory>
            <optionCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </optionCategory>
            <swaptionCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </swaptionCategory>
            <swapCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </swapCategory>
            <warrantCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </warrantCategory>
            <otherCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </otherCategory>
          </equityContracts>
          <foreignExchgContracts>
            <mon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            <mon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            <mon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            <forwardCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </forwardCategory>
            <futureCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </futureCategory>
            <optionCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </optionCategory>
            <swaptionCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </swaptionCategory>
            <swapCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </swapCategory>
            <warrantCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </warrantCategory>
            <otherCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </otherCategory>
          </foreignExchgContracts>
          <interestRtContracts>
            <mon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            <mon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            <mon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            <forwardCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </forwardCategory>
            <futureCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </futureCategory>
            <optionCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </optionCategory>
            <swaptionCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </swaptionCategory>
            <swapCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </swapCategory>
            <warrantCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </warrantCategory>
            <otherCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </otherCategory>
          </interestRtContracts>
          <otherContracts>
            <mon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            <mon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            <mon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            <forwardCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </forwardCategory>
            <futureCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </futureCategory>
            <optionCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </optionCategory>
            <swaptionCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </swaptionCategory>
            <swapCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </swapCategory>
            <warrantCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </warrantCategory>
            <otherCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </otherCategory>
          </otherContracts>
        </monthlyReturnCats>
        <othMon1 netRealizedGain="-8983.23000000" netUnrealizedAppr="-163919.70000000"/>
        <othMon2 netRealizedGain="-22090.86000000" netUnrealizedAppr="416071.99000000"/>
        <othMon3 netRealizedGain="-34243.19000000" netUnrealizedAppr="295780.81000000"/>
      </returnInfo>
      <mon1Flow redemption="19584.57000000" reinvestment="0.00000000" sales="71499.39000000"/>
      <mon2Flow redemption="63323.48000000" reinvestment="0.00000000" sales="54864.22000000"/>
      <mon3Flow redemption="3866.64000000" reinvestment="0.00000000" sales="35629.86000000"/>



    </fundInfo>
    <invstOrSecs>
      <invstOrSec>
        <name>iShares Trust iShares ESG Advanced High Yield</name>
        <lei>549300WY6QQ9HGWLNX87</lei>
        <title>iShares Trust iShares ESG Advanced High Yield</title>
        <cusip>46435G441</cusip>
        <identifiers>
          <isin value="US46435G4414"/>
        </identifiers>
        <balance>9238.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>410536.72000000</valUSD>
        <pctVal>3.167217052110</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetConditional assetCat="OTHER" desc="Exchange traded fund"/>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>IQ Candriam ESG International Equity ETF</name>
        <lei>549300ZTSX4418004Y77</lei>
        <title>IQ Candriam ESG International Equity ETF</title>
        <cusip>45409B453</cusip>
        <identifiers>
          <isin value="US45409B4538"/>
        </identifiers>
        <balance>12954.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>361938.65000000</valUSD>
        <pctVal>2.792291671492</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetConditional assetCat="OTHER" desc="Exchange traded fund"/>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <loanByFundCondition isLoanByFund="Y" loanVal="156465.68000000"/>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Nuveen ESG Large-Cap Value ETF</name>
        <lei>54930051GKCS21XJ4F32</lei>
        <title>Nuveen ESG Large-Cap Value ETF</title>
        <cusip>67092P300</cusip>
        <identifiers>
          <isin value="US67092P3001"/>
        </identifiers>
        <balance>16458.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>590513.04000000</valUSD>
        <pctVal>4.555702032649</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetConditional assetCat="OTHER" desc="Exchange traded fund"/>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <loanByFundCondition isLoanByFund="Y" loanVal="14352.00000000"/>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>American Century Sustainable Equity ETF</name>
        <lei>5493000WPOJJTITF8Q16</lei>
        <title>American Century Sustainable Equity ETF</title>
        <cusip>025072752</cusip>
        <identifiers>
          <isin value="US0250727528"/>
        </identifiers>
        <balance>5351.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>305512.67000000</valUSD>
        <pctVal>2.356975371313</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetConditional assetCat="OTHER" desc="Exchange traded fund"/>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>IQ Candriam ESG U.S. Large Cap Equity ETF</name>
        <lei>N/A</lei>
        <title>IQ Candriam ESG U.S. Large Cap Equity ETF</title>
        <cusip>45409B461</cusip>
        <identifiers>
          <isin value="US45409B4611"/>
        </identifiers>
        <balance>3307.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>132070.67000000</valUSD>
        <pctVal>1.018901495845</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetConditional assetCat="OTHER" desc="Exchange traded fund"/>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Nuveen ESG Small-Cap ETF</name>
        <lei>549300T7N6LQJ3QY4W14</lei>
        <title>Nuveen ESG Small-Cap ETF</title>
        <cusip>67092P607</cusip>
        <identifiers>
          <isin value="US67092P6079"/>
        </identifiers>
        <balance>13462.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>522325.60000000</valUSD>
        <pctVal>4.029648181223</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetConditional assetCat="OTHER" desc="Exchange traded fund"/>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <loanByFundCondition isLoanByFund="Y" loanVal="89240.00000000"/>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Nuveen ESG Mid-Cap Value ETF</name>
        <lei>5493007Z8DZNMHF3BS35</lei>
        <title>Nuveen ESG Mid-Cap Value ETF</title>
        <cusip>67092P508</cusip>
        <identifiers>
          <isin value="US67092P5089"/>
        </identifiers>
        <balance>31539.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>970455.03000000</valUSD>
        <pctVal>7.486886238390</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetConditional assetCat="OTHER" desc="Exchange traded fund"/>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>iShares, Inc. iShares ESG Aware MSCI EM ETF</name>
        <lei>549300JES9K0OUJ8F389</lei>
        <title>iShares, Inc. iShares ESG Aware MSCI EM ETF</title>
        <cusip>46434G863</cusip>
        <identifiers>
          <isin value="US46434G8630"/>
        </identifiers>
        <balance>4013.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>134917.06000000</valUSD>
        <pctVal>1.040860883412</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetConditional assetCat="OTHER" desc="Exchange traded fund"/>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <loanByFundCondition isLoanByFund="Y" loanVal="100860.00000000"/>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Nuveen ESG High Yield Corporate Bond ETF</name>
        <lei>5493004NNDIHW8KI0J08</lei>
        <title>Nuveen ESG High Yield Corporate Bond ETF</title>
        <cusip>67092P854</cusip>
        <identifiers>
          <isin value="US67092P8547"/>
        </identifiers>
        <balance>21288.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>440129.40000000</valUSD>
        <pctVal>3.395519262722</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetConditional assetCat="OTHER" desc="Exchange traded fund"/>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <loanByFundCondition isLoanByFund="Y" loanVal="66160.00000000"/>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>iShares ESG Advanced Total USD Bond Market ETF</name>
        <lei>5493003MW3304SOSOX56</lei>
        <title>iShares ESG Advanced Total USD Bond Market ETF</title>
        <cusip>46436E619</cusip>
        <identifiers>
          <isin value="US46436E6196"/>
        </identifiers>
        <balance>58788.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>2499077.88000000</valUSD>
        <pctVal>19.27993694714</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetConditional assetCat="OTHER" desc="Exchange traded fund"/>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <loanByFundCondition isLoanByFund="Y" loanVal="785882.37000000"/>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>iShares ESG Aware MSCI USA Small-Cap ETF</name>
        <lei>549300V3IZTYAHR0WL12</lei>
        <title>iShares ESG Aware MSCI USA Small-Cap ETF</title>
        <cusip>46435U663</cusip>
        <identifiers>
          <isin value="US46435U6635"/>
        </identifiers>
        <balance>3552.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>132738.24000000</valUSD>
        <pctVal>1.024051678483</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetConditional assetCat="OTHER" desc="Exchange traded fund"/>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Vanguard ESG U.S. Corporate Bond ETF</name>
        <lei>5493004BZ12544NU7V76</lei>
        <title>Vanguard ESG U.S. Corporate Bond ETF</title>
        <cusip>921910691</cusip>
        <identifiers>
          <isin value="US9219106914"/>
        </identifiers>
        <balance>13362.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>827107.80000000</valUSD>
        <pctVal>6.380988107697</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetConditional assetCat="OTHER" desc="Exchange traded fund"/>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>iShares ESG Advanced MSCI EAFE ETF</name>
        <lei>5493009810ZBASOQD532</lei>
        <title>iShares ESG Advanced MSCI EAFE ETF</title>
        <cusip>46436E759</cusip>
        <identifiers>
          <isin value="US46436E7590"/>
        </identifiers>
        <balance>139.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>8670.82000000</valUSD>
        <pctVal>0.066893818803</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetConditional assetCat="OTHER" desc="Exchange traded fund"/>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>MainStay U.S. Government Liquidity Fund</name>
        <lei>549300Y3ZLEL13IJCK58</lei>
        <title>MainStay U.S. Government Liquidity Fund, Class I</title>
        <cusip>56064L488</cusip>
        <identifiers>
          <isin value="US56064L4885"/>
        </identifiers>
        <balance>43833.42000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>43833.42000000</valUSD>
        <pctVal>0.338166961718</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>STIV</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>iShares ESG Aware 1-5 Year USD Corporate Bond ETF</name>
        <lei>549300A3SLEQ53E2BD05</lei>
        <title>iShares ESG Aware 1-5 Year USD Corporate Bond ETF</title>
        <cusip>46435G243</cusip>
        <identifiers>
          <isin value="US46435G2434"/>
        </identifiers>
        <balance>8377.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>201048.00000000</valUSD>
        <pctVal>1.551049206737</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetConditional assetCat="OTHER" desc="Exchange traded fund"/>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Nushares Etf Trust - Nuveen Esg Mid-Cap Growth Etf</name>
        <lei>549300NW5IJSX47HWA80</lei>
        <title>Nushares Etf Trust - Nuveen Esg Mid-Cap Growth Etf</title>
        <cusip>67092P409</cusip>
        <identifiers>
          <isin value="US67092P4090"/>
        </identifiers>
        <balance>14478.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>585200.76000000</valUSD>
        <pctVal>4.514718746668</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetConditional assetCat="OTHER" desc="Exchange traded fund"/>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <loanByFundCondition isLoanByFund="Y" loanVal="32336.00000000"/>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>iShares Trust iShares ESG Aware MSCI EAFE ETF</name>
        <lei>549300IT2A3OM8F0BB22</lei>
        <title>iShares Trust iShares ESG Aware MSCI EAFE ETF</title>
        <cusip>46435G516</cusip>
        <identifiers>
          <isin value="US46435G5163"/>
        </identifiers>
        <balance>17861.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>1335288.36000000</valUSD>
        <pctVal>10.30150984612</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetConditional assetCat="OTHER" desc="Exchange traded fund"/>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <loanByFundCondition isLoanByFund="Y" loanVal="396228.00000000"/>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>INVESCO GOVT AND AGCY LEX</name>
        <lei>O37NHJVF7S22I1ONOU83</lei>
        <title>INVESCO GOVERNMENT &amp; AGENCY PORTFOLIO OPEN-END FUND USD</title>
        <cusip>825252885</cusip>
        <identifiers>
          <other otherDesc="Custodian Internal ID" value="825252885"/>
        </identifiers>
        <balance>1521777.10000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>1521777.10000000</valUSD>
        <pctVal>11.74023697717</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>STIV</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <cashCollateralCondition cashCollateralVal="1521777.10000000" isCashCollateral="Y"/>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>RBC US GOVT MONEY MKT FUND</name>
        <lei>549300RFDC5U7WLJKO50</lei>
        <title>RBC FUNDS TRUST US GOVT MONEY MKT FUND RBC INSTL</title>
        <cusip>74926P696</cusip>
        <identifiers>
          <other otherDesc="Custodian Internal ID" value="74926P696"/>
        </identifiers>
        <balance>500000.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>500000.00000000</valUSD>
        <pctVal>3.857410187461</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>STIV</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <cashCollateralCondition cashCollateralVal="500000.00000000" isCashCollateral="Y"/>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>iShares ESG Screened S&amp;P 500 ETF</name>
        <lei>5493001Q5KJU8OIG9398</lei>
        <title>iShares ESG Screened S&amp;P 500 ETF</title>
        <cusip>46436E569</cusip>
        <identifiers>
          <isin value="US46436E5693"/>
        </identifiers>
        <balance>12019.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>418546.05000000</valUSD>
        <pctVal>3.229007594383</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetConditional assetCat="OTHER" desc="Exchange traded fund"/>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <loanByFundCondition isLoanByFund="Y" loanVal="55717.91840000"/>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Invesco ESG S&amp;P 500 Equal Weight ETF</name>
        <lei>5493001N8O0VSGCMQX93</lei>
        <title>Invesco ESG S&amp;P 500 Equal Weight ETF</title>
        <cusip>46138G516</cusip>
        <identifiers>
          <isin value="US46138G5163"/>
        </identifiers>
        <balance>13665.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>325291.23000000</valUSD>
        <pctVal>2.509563408987</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetConditional assetCat="OTHER" desc="Exchange traded fund"/>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <loanByFundCondition isLoanByFund="Y" loanVal="121403.97000000"/>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>iShares ESG Advanced MSCI EM ETF</name>
        <lei>5493008DWKCYUY7KE133</lei>
        <title>iShares ESG Advanced MSCI EM ETF</title>
        <cusip>46436E742</cusip>
        <identifiers>
          <isin value="US46436E7426"/>
        </identifiers>
        <balance>3490.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>132026.70000000</valUSD>
        <pctVal>1.018562275193</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetConditional assetCat="OTHER" desc="Exchange traded fund"/>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <loanByFundCondition isLoanByFund="Y" loanVal="45396.00000000"/>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Nuveen ESG US Aggregate Bond ETF</name>
        <lei>N/A</lei>
        <title>Nuveen ESG US Aggregate Bond ETF</title>
        <cusip>67092P870</cusip>
        <identifiers>
          <isin value="US67092P8703"/>
        </identifiers>
        <balance>36537.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>800160.30000000</valUSD>
        <pctVal>6.173092985644</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetConditional assetCat="OTHER" desc="Exchange traded fund"/>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <loanByFundCondition isLoanByFund="Y" loanVal="153300.00000000"/>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>SPDR S&amp;P 500 ESG ETF</name>
        <lei>5493000QG09QKDPDYX59</lei>
        <title>SPDR S&amp;P 500 ESG ETF</title>
        <cusip>78468R531</cusip>
        <identifiers>
          <isin value="US78468R5312"/>
        </identifiers>
        <balance>39681.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>1767788.55000000</valUSD>
        <pctVal>13.63817112409</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetConditional assetCat="OTHER" desc="Exchange traded fund"/>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
    </invstOrSecs>
    <explntrNotes>

      <explntrNote note="Monthly returns presented in Item B.5(a) have been calculated without deducting any applicable sales loads or redemption fees." noteItem="B.5.a"/>
    </explntrNotes>
    <signature>
      <ncom:dateSigned>2023-08-31</ncom:dateSigned>
      <ncom:nameOfApplicant>MAINSTAY FUNDS TRUST</ncom:nameOfApplicant>
      <ncom:signature>Jack Benintende</ncom:signature>
      <ncom:signerName>Jack Benintende</ncom:signerName>
      <ncom:title>Treasurer</ncom:title>
    </signature>
  </formData>
  <documents>XXXX</documents>
</edgarSubmission>
