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      <invstOrSec>
        <name>Northwestern Mutual Series Fund, Inc. - Mid Cap Value Portfolio</name>
        <lei>8TRVIGMWHSWZVXP7PI34</lei>
        <title>MID CAP VALUE PORTFOLIO</title>
        <cusip>668140783</cusip>
        <identifiers>
          <isin value="US6681407838"/>
        </identifiers>
        <balance>32468399.03000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>48475319.75000000</valUSD>
        <pctVal>2.500056618778</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>Northwestern Mutual Series Fund, Inc. - Emerging Markets Equity Portfolio</name>
        <lei>549300B2SFS01R9MCJ10</lei>
        <title>MFS EMERGING MKTS PORT</title>
        <cusip>668140502</cusip>
        <identifiers>
          <isin value="US6681405022"/>
        </identifiers>
        <balance>76063015.36000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>74389629.03000000</valUSD>
        <pctVal>3.836556115237</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>United States Treasury</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>U.S. Treasury Bills</title>
        <cusip>912797KR7</cusip>
        <identifiers>
          <isin value="US912797KR75"/>
        </identifiers>
        <balance>6700000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>6671664.56000000</valUSD>
        <pctVal>0.344083117502</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>STIV</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2024-07-30</maturityDt>
          <couponKind>None</couponKind>
          <annualizedRt>0.00000000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
        </debtSec>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Home Depot Inc/The</name>
        <lei>QEKMOTMBBKA8I816DO57</lei>
        <title>Home Depot Inc/The</title>
        <cusip>43707LGG8</cusip>
        <identifiers>
          <isin value="US43707LGG86"/>
        </identifiers>
        <balance>8000000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>7978742.00000000</valUSD>
        <pctVal>0.411494072643</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>STIV</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2024-07-16</maturityDt>
          <couponKind>None</couponKind>
          <annualizedRt>0.00000000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
        </debtSec>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>SPDR Dow Jones REIT ETF</name>
        <lei>54930077YVRJPO64VF50</lei>
        <title>SPDR Dow Jones REIT ETF</title>
        <cusip>78464A607</cusip>
        <identifiers>
          <isin value="US78464A6073"/>
        </identifiers>
        <balance>324600.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>30220260.00000000</valUSD>
        <pctVal>1.558573753073</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerConditional desc="REIT" issuerCat="OTHER"/>
        <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>664400.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>48262016.00000000</valUSD>
        <pctVal>2.489055733075</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>296750.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>17365810.00000000</valUSD>
        <pctVal>0.895620873773</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 500 ETF</name>
        <lei>5493007M4YMN8XL48C14</lei>
        <title>iShares Core S&amp;P 500 ETF</title>
        <cusip>464287200</cusip>
        <identifiers>
          <isin value="US4642872000"/>
        </identifiers>
        <balance>256500.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>140364495.00000000</valUSD>
        <pctVal>7.239130893330</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>Northwestern Mutual Series Fund, Inc. - Small Cap Value Portfolio</name>
        <lei>5493006BEZYY47A02J59</lei>
        <title>SMALL CAP VALUE PORTFOLIO</title>
        <cusip>668140817</cusip>
        <identifiers>
          <isin value="US6681408174"/>
        </identifiers>
        <balance>12364188.31000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>23541414.54000000</valUSD>
        <pctVal>1.214120289245</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>Northwestern Mutual Series Fund, Inc. - Small Cap Growth Stock Portfolio</name>
        <lei>YTR2S467AP5XPLF6CQ13</lei>
        <title>SMALL CAP GROWTH STK PORTFOLIO</title>
        <cusip>668140825</cusip>
        <identifiers>
          <isin value="US6681408257"/>
        </identifiers>
        <balance>8956771.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>21343985.29000000</valUSD>
        <pctVal>1.100790504747</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 Portfolio S&amp;P 600 Small Cap ETF</name>
        <lei>549300NYZX301TBLUJ08</lei>
        <title>SPDR Portfolio S&amp;P 600 Small Cap ETF</title>
        <cusip>78468R853</cusip>
        <identifiers>
          <isin value="US78468R8530"/>
        </identifiers>
        <balance>590300.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>24515159.00000000</valUSD>
        <pctVal>1.264339994753</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>Northwestern Mutual Series Fund, Inc. - Large Cap Blend Portfolio</name>
        <lei>549300J8IDGQV6XROU84</lei>
        <title>LARGE CAP BLEND PORT</title>
        <cusip>668140205</cusip>
        <identifiers>
          <isin value="US6681402052"/>
        </identifiers>
        <balance>42360942.46000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>58246295.88000000</valUSD>
        <pctVal>3.003983022394</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>Northwestern Mutual Series Fund, Inc. - Mid Cap Growth Stock Portfolio</name>
        <lei>LIP0ME8UWTR611J45283</lei>
        <title>MID CAP GROWTH PORTFOLIO</title>
        <cusip>668140866</cusip>
        <identifiers>
          <isin value="US6681408661"/>
        </identifiers>
        <balance>15196944.14000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>47718404.59000000</valUSD>
        <pctVal>2.461019624997</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="Please see notes to financial statements or N-PORT part F for a glossary of swap paid and received terms." noteItem="C.11.a"/>
      <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>2024-07-15</ncom:dateSigned>
      <ncom:nameOfApplicant>NORTHWESTERN MUTUAL SERIES FUND INC</ncom:nameOfApplicant>
      <ncom:signature>Phillip Rinzel</ncom:signature>
      <ncom:signerName>Phillip Rinzel</ncom:signerName>
      <ncom:title>Controller and Chief Accounting Officer</ncom:title>
    </signature>
  </formData>
</edgarSubmission>
