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      <regStreet1>1 Corporate Way</regStreet1>
      <regCity>Lansing</regCity>
      <regStateConditional regCountry="US" regState="US-MI"/>
      <regZipOrPostalCode>48951</regZipOrPostalCode>
      <regPhone>517-367-4336</regPhone>
      <seriesName>JNL/DFA Moderate Growth Allocation Fund</seriesName>
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      <repPdEnd>2020-12-31</repPdEnd>
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        <identifiers>
          <isin value="US2332038353"/>
          <ticker value="DFREX"/>
          <other otherDesc="INTERNAL" value="233203835"/>
        </identifiers>
        <balance>94719.291</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>2967555.39</valUSD>
        <pctVal>2.0477773295</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>DFA U.S. Small Cap Portfolio</name>
        <lei>549300XGRTBJCE41BD26</lei>
        <title>DFA U.S. Small Cap Portfolio</title>
        <cusip>233203843</cusip>
        <identifiers>
          <isin value="US2332038437"/>
          <ticker value="DFSTX"/>
          <other otherDesc="INTERNAL" value="233203843"/>
        </identifiers>
        <balance>224382.221</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>5268494.55</valUSD>
        <pctVal>3.6355525954</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>
    <signature>
      <ncom:dateSigned>2020-05-28</ncom:dateSigned>
      <ncom:nameOfApplicant>JNL Series Trust</ncom:nameOfApplicant>
      <ncom:signature>Daniel W. Koors</ncom:signature>
      <ncom:signerName>Daniel W. Koors</ncom:signerName>
      <ncom:title>Principal Financial Officer</ncom:title>
    </signature>
  </formData>
  <documents>XXXX</documents>
</edgarSubmission>
