<?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>S000060985</seriesId>
        <classId>C000197832</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 60/40 Allocation VP</seriesName>
      <seriesId>S000060985</seriesId>
      <seriesLei>549300WWVBWFRT583G18</seriesLei>
      <repPdEnd>2025-12-31</repPdEnd>
      <repPdDate>2025-06-30</repPdDate>
      <isFinalFiling>N</isFinalFiling>
    </genInfo>
    <fundInfo>
      <totAssets>81271778.86</totAssets>
      <totLiabs>74313.24</totLiabs>
      <netAssets>81197465.62</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>
      <isNonCashCollateral>N</isNonCashCollateral>
      <returnInfo>
        <monthlyTotReturns>
          <monthlyTotReturn classId="C000197832" rtn1="0.58000000" rtn2="3.51000000" rtn3="3.11000000"/>
        </monthlyTotReturns>
        <othMon1 netRealizedGain="565627.82000000" netUnrealizedAppr="-232869.92000000"/>
        <othMon2 netRealizedGain="761060.60000000" netUnrealizedAppr="1823268.28000000"/>
        <othMon3 netRealizedGain="100776.96000000" netUnrealizedAppr="2232330.99000000"/>
      </returnInfo>
      <mon1Flow redemption="2301824.53000000" reinvestment="0.00000000" sales="119090.79000000"/>
      <mon2Flow redemption="721130.24000000" reinvestment="0.00000000" sales="320886.37000000"/>
      <mon3Flow redemption="536004.47000000" reinvestment="0.00000000" sales="594085.51000000"/>



    </fundInfo>
    <invstOrSecs>
      <invstOrSec>
        <name>Transamerica Short-Term Bond</name>
        <lei>549300151BL06CDX4A76</lei>
        <title>Transamerica Short-Term Bond</title>
        <cusip>893961292</cusip>
        <identifiers>
          <isin value="US8939612920"/>
        </identifiers>
        <balance>1616745.82000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>15989616.16000000</valUSD>
        <pctVal>19.69226014372</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>Transamerica S&amp;P 500 Index VP</name>
        <lei>549300L4W860DHB67440</lei>
        <title>Transamerica S&amp;P 500 Index VP</title>
        <cusip>89356L494</cusip>
        <identifiers>
          <isin value="US89356L4941"/>
        </identifiers>
        <balance>1426287.14000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>37012151.28000000</valUSD>
        <pctVal>45.58288980744</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>Transamerica MSCI EAFE Index VP</name>
        <lei>549300368UXGO3IHXX21</lei>
        <title>Transamerica MSCI EAFE Index VP</title>
        <cusip>89356L486</cusip>
        <identifiers>
          <isin value="US89356L4867"/>
        </identifiers>
        <balance>794745.19000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>12183443.81000000</valUSD>
        <pctVal>15.00470946595</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>Transamerica Intermediate Bond</name>
        <lei>549300ZF0O00XTDBKY49</lei>
        <title>Transamerica Core Bond</title>
        <cusip>89354D106</cusip>
        <identifiers>
          <isin value="US89354D1063"/>
        </identifiers>
        <balance>1856678.23000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>15967432.81000000</valUSD>
        <pctVal>19.66493989446</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>
