<?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>0000778207</cik>
          <ccc>XXXXXXXX</ccc>
        </issuerCredentials>
      </filer>


      <seriesClassInfo>
        <seriesId>S000026902</seriesId>
        <classId>C000080975</classId>
        <classId>C000080976</classId>
      </seriesClassInfo>


    </filerInfo>
  </headerData>
  <formData>
    <genInfo>
      <regName>TRANSAMERICA SERIES TRUST</regName>
      <regFileNumber>811-04419</regFileNumber>
      <regCik>0000778207</regCik>
      <regLei>5493000QR1WGXIM5V222</regLei>
      <regStreet1>1801 CALIFORNIA STREET</regStreet1>
      <regStreet2>SUITE 5200</regStreet2>
      <regCity>DENVER</regCity>
      <regStateConditional regCountry="US" regState="US-CO"/>
      <regZipOrPostalCode>80202</regZipOrPostalCode>
      <regPhone>720-493-4256</regPhone>
      <seriesName>Transamerica Goldman Sachs Managed Risk - Conservative ETF VP</seriesName>
      <seriesId>S000026902</seriesId>
      <seriesLei>549300R5OTDNC8N5OF89</seriesLei>
      <repPdEnd>2025-12-31</repPdEnd>
      <repPdDate>2025-06-30</repPdDate>
      <isFinalFiling>N</isFinalFiling>
    </genInfo>
    <fundInfo>
      <totAssets>408415629.02</totAssets>
      <totLiabs>13260874.51</totLiabs>
      <netAssets>395154754.51</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>0.00000000</cshNotRptdInCorD>
      <borrowers>
        <borrower aggrVal="7300780.92000000" lei="549300HN4UKV1E2R3U73" name="BofA Securities, Inc."/>
        <borrower aggrVal="95284.00000000" lei="549300CSX55MXZ47EI78" name="Wedbush Securities Inc."/>
        <borrower aggrVal="2977090.00000000" lei="G5GSEF7VJP5I7OUK5573" name="Barclays Bank PLC"/>
        <borrower aggrVal="58100.00000000" lei="VYVVCKR63DVZZN70PB21" name="Wells Fargo Securities, LLC"/>
      </borrowers>
      <aggregateCondition isNonCashCollateral="Y">
        <aggregateInfos>
          <aggregateInfo amt="3143739.92000000" collatrl="3090648.28000000">
            <invstCat>UST</invstCat>
          </aggregateInfo>
        </aggregateInfos>
      </aggregateCondition>
      <returnInfo>
        <monthlyTotReturns>
          <monthlyTotReturn classId="C000080975" rtn1="-0.87000000" rtn2="1.32000000" rtn3="2.68000000"/>
          <monthlyTotReturn classId="C000080976" rtn1="-0.97000000" rtn2="1.33000000" rtn3="2.71000000"/>
        </monthlyTotReturns>
        <othMon1 netRealizedGain="5634276.05000000" netUnrealizedAppr="-9978238.96000000"/>
        <othMon2 netRealizedGain="3394615.82000000" netUnrealizedAppr="940064.86000000"/>
        <othMon3 netRealizedGain="668943.41000000" netUnrealizedAppr="8191074.99000000"/>
      </returnInfo>
      <mon1Flow redemption="5473881.80000000" reinvestment="0.00000000" sales="403049.54000000"/>
      <mon2Flow redemption="5066820.51000000" reinvestment="0.00000000" sales="210077.74000000"/>
      <mon3Flow redemption="6881112.34000000" reinvestment="0.00000000" sales="877092.46000000"/>



    </fundInfo>
    <invstOrSecs>
      <invstOrSec>
        <name>iShares MSCI EAFE ETF</name>
        <lei>549300O0XO3KDQV68404</lei>
        <title>iShares MSCI EAFE ETF</title>
        <cusip>464287465</cusip>
        <identifiers>
          <isin value="US4642874659"/>
        </identifiers>
        <balance>91307.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>8161932.73000000</valUSD>
        <pctVal>2.065502853463</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</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>Vanguard FTSE Developed Markets ETF</name>
        <lei>N/A</lei>
        <title>Vanguard FTSE Developed Markets ETF</title>
        <cusip>921943858</cusip>
        <identifiers>
          <isin value="US9219438580"/>
        </identifiers>
        <balance>200994.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>11458667.94000000</valUSD>
        <pctVal>2.899792501347</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</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>Schwab U.S. Aggregate Bond ETF</name>
        <lei>549300EMR2FMUC3JFN76</lei>
        <title>Schwab U.S. Aggregate Bond ETF</title>
        <cusip>808524839</cusip>
        <identifiers>
          <isin value="US8085248396"/>
        </identifiers>
        <balance>3275340.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>76118901.60000000</valUSD>
        <pctVal>19.26306104918</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <loanByFundCondition isLoanByFund="Y" loanVal="8213062.00000000"/>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Vanguard Intermediate-Term Corporate Bond ETF</name>
        <lei>VKDXEYNPEMWGHJ22MR31</lei>
        <title>Vanguard Intermediate-Term Corporate Bond ETF</title>
        <cusip>92206C870</cusip>
        <identifiers>
          <isin value="US92206C8709"/>
        </identifiers>
        <balance>230066.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>19077072.72000000</valUSD>
        <pctVal>4.827747231247</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <loanByFundCondition isLoanByFund="Y" loanVal="2218192.92000000"/>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>iShares Core U.S. Aggregate Bond ETF</name>
        <lei>549300F7VSXTKBGHJE47</lei>
        <title>iShares Core U.S. Aggregate Bond ETF</title>
        <cusip>464287226</cusip>
        <identifiers>
          <isin value="US4642872265"/>
        </identifiers>
        <balance>750698.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>74469241.60000000</valUSD>
        <pctVal>18.84558916476</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</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>State Street Global Advisors</name>
        <lei>5493008BJIBKQ5KTIF74</lei>
        <title>State Street Navigator Securities Lending Government Money Market Portfolio</title>
        <cusip>857509301</cusip>
        <identifiers>
          <isin value="US8575093013"/>
        </identifiers>
        <balance>7604646.75000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>7604646.75000000</valUSD>
        <pctVal>1.924473048395</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>STIV</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <cashCollateralCondition cashCollateralVal="7604646.75000000" isCashCollateral="Y"/>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>iShares MSCI EAFE Small-Cap ETF</name>
        <lei>549300MJV5OZGVS4LX86</lei>
        <title>iShares MSCI EAFE Small-Cap ETF</title>
        <cusip>464288273</cusip>
        <identifiers>
          <isin value="US4642882736"/>
        </identifiers>
        <balance>5921.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>430338.28000000</valUSD>
        <pctVal>0.108903733306</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</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>SPDR S&amp;P 500 ETF Trust</name>
        <lei>549300NZAMSJ8FXPQQ63</lei>
        <title>SPDR S&amp;P 500 ETF Trust</title>
        <cusip>78462F103</cusip>
        <identifiers>
          <isin value="US78462F1030"/>
        </identifiers>
        <balance>47993.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>29652475.05000000</valUSD>
        <pctVal>7.504015758780</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</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 Russell 2000 ETF</name>
        <lei>549300O80OAR5VTWR172</lei>
        <title>iShares Russell 2000 ETF</title>
        <cusip>464287655</cusip>
        <identifiers>
          <isin value="US4642876555"/>
        </identifiers>
        <balance>31452.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>6787027.08000000</valUSD>
        <pctVal>1.717561791307</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</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>Vanguard Total Bond Market ETF</name>
        <lei>CIJB0QNLPT2SSWMJ5W92</lei>
        <title>Vanguard Total Bond Market ETF</title>
        <cusip>921937835</cusip>
        <identifiers>
          <isin value="US9219378356"/>
        </identifiers>
        <balance>1023285.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>75344474.55000000</valUSD>
        <pctVal>19.06708035018</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</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 Core MSCI EAFE ETF</name>
        <lei>5493009FT582MI7Y3I36</lei>
        <title>iShares Core MSCI EAFE ETF</title>
        <cusip>46432F842</cusip>
        <identifiers>
          <isin value="US46432F8427"/>
        </identifiers>
        <balance>134851.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>11257361.48000000</valUSD>
        <pctVal>2.848848799493</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</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 Core MSCI Emerging Markets ETF</name>
        <lei>5493007C24Z3ZDJ0VD06</lei>
        <title>iShares Core MSCI Emerging Markets ETF</title>
        <cusip>46434G103</cusip>
        <identifiers>
          <isin value="US46434G1031"/>
        </identifiers>
        <balance>223751.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>13431772.53000000</valUSD>
        <pctVal>3.399117023571</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</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 Core S&amp;P Mid-Cap ETF</name>
        <lei>549300ODQWH5PC0IUZ78</lei>
        <title>iShares Core S&amp;P Mid-Cap ETF</title>
        <cusip>464287507</cusip>
        <identifiers>
          <isin value="US4642875078"/>
        </identifiers>
        <balance>121072.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>7508885.44000000</valUSD>
        <pctVal>1.900239173209</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</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>Fixed Income Clearing Corp</name>
        <lei>549300H47WTHXPU08X20</lei>
        <title>FIXED INC CLEARING CORP.REPO</title>
        <cusip>000000000</cusip>
        <identifiers>
          <other otherDesc="Internal Identifier" value="85748R009"/>
        </identifiers>
        <balance>3171865.14000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>3171865.14000000</valUSD>
        <pctVal>0.802689352411</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>RA</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <repurchaseAgrmt>
          <transCat>Repurchase</transCat>
          <clearedCentCparty centralCounterparty="Fixed Income Clearing Corp" isCleared="Y"/>
          <isTriParty>N</isTriParty>
          <repurchaseRt>1.80000000</repurchaseRt>
          <maturityDt>2025-07-01</maturityDt>
          <repurchaseCollaterals>
            <repurchaseCollateral>
              <principalAmt>3178100.00000000</principalAmt>
              <principalCd>USD</principalCd>
              <collateralVal>3235489.05000000</collateralVal>
              <collateralCd>USD</collateralCd>
              <invstCat>UST</invstCat>
            </repurchaseCollateral>
          </repurchaseCollaterals>
        </repurchaseAgrmt>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>iShares Core S&amp;P 500 ETF</name>
        <lei>5493007M4YMN8XL48C14</lei>
        <title>iShares Core S&amp;P 500 ETF</title>
        <cusip>464287200</cusip>
        <identifiers>
          <isin value="US4642872000"/>
        </identifiers>
        <balance>46196.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>28683096.40000000</valUSD>
        <pctVal>7.258699553183</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</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>Vanguard S&amp;P 500 ETF</name>
        <lei>549300D8V8ZP5GRJOC71</lei>
        <title>Vanguard S&amp;P 500 ETF</title>
        <cusip>922908363</cusip>
        <identifiers>
          <isin value="US9229083632"/>
        </identifiers>
        <balance>52209.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>29656278.27000000</valUSD>
        <pctVal>7.504978222209</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</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>
    </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>2025-07-15</ncom:dateSigned>
      <ncom:nameOfApplicant>TRANSAMERICA SERIES TRUST</ncom:nameOfApplicant>
      <ncom:signature>Joshua Durham</ncom:signature>
      <ncom:signerName>Joshua Durham</ncom:signerName>
      <ncom:title>Chief Operating Officer and Interim Treasurer</ncom:title>
    </signature>
  </formData>
</edgarSubmission>
