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  <headerData>
    <submissionType>N-PX</submissionType>
    <filerInfo>
      <registrantType>RMIC</registrantType>
      <liveTestFlag>LIVE</liveTestFlag>
      <filer>
        <issuerCredentials>
          <cik>0001053425</cik>
          <ccc>XXXXXXXX</ccc>
          <!--Field: Pseudo-Tag; ID: Name; Data:-->
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      </filer>
      <flags>
        <overrideInternetFlag>false</overrideInternetFlag>
        <confirmingCopyFlag>false</confirmingCopyFlag>
      </flags>
      <investmentCompanyType>N-1A</investmentCompanyType>
      <periodOfReport>06/30/2026</periodOfReport>
    </filerInfo>
    <seriesClass>
      <reportSeriesClass>
        <rptIncludeAllSeriesFlag>true</rptIncludeAllSeriesFlag>
      </reportSeriesClass>
    </seriesClass>
  </headerData>
  <formData>
    <coverPage>
      <yearOrQuarter>YEAR</yearOrQuarter>
      <reportCalendarYear>2026</reportCalendarYear>
      <reportingPerson>
        <name>HARTFORD SERIES FUND INC</name>
        <phoneNumber>610-386-1801</phoneNumber>
        <address>
          <com:street1>690 LEE ROAD</com:street1>
          <com:city>WAYNE</com:city>
          <com:stateOrCountry>PA</com:stateOrCountry>
          <com:zipCode>19087</com:zipCode>
        </address>
      </reportingPerson>
      <agentForService>
        <name>Thomas R. Phillips, Esq.</name>
        <address>
          <com:street1>690 Lee Road</com:street1>
          <com:city>Wayne</com:city>
          <com:stateOrCountry>PA</com:stateOrCountry>
          <com:zipCode>19087</com:zipCode>
        </address>
      </agentForService>
      <reportInfo>
        <reportType>FUND VOTING REPORT</reportType>
      </reportInfo>
      <fileNumber>811-08629</fileNumber>
      <leiNumber>L2SH4E1KCLEHYZJ8SW12</leiNumber>
      <explanatoryInformation>
        <explanatoryChoice>Y</explanatoryChoice>
        <explanatoryNotes>The following funds did not vote proxies relating to portfolio securities during the period covered by this report: Hartford Total Return Bond HLS Fund, Hartford Ultrashort Bond HLS Fund</explanatoryNotes>
      </explanatoryInformation>
    </coverPage>
    <summaryPage>
      <otherIncludedManagersCount>1</otherIncludedManagersCount>
      <otherManagers2>
        <investmentManagers>
          <serialNo>1</serialNo>
          <name>Wellington Management Company LLP</name>
        </investmentManagers>
      </otherManagers2>
    </summaryPage>
    <seriesPage>
      <seriesCount>12</seriesCount>
      <seriesDetails>
        <seriesReports>
          <idOfSeries>S000003205</idOfSeries>
          <nameOfSeries>Hartford Balanced HLS Fund</nameOfSeries>
          <leiOfSeries>Z0JTO1KPL8PY8NSMGS96</leiOfSeries>
        </seriesReports>
        <seriesReports>
          <idOfSeries>S000003206</idOfSeries>
          <nameOfSeries>Hartford Healthcare HLS Fund</nameOfSeries>
          <leiOfSeries>Y0VH3HJ95PT0KGRH2U03</leiOfSeries>
        </seriesReports>
        <seriesReports>
          <idOfSeries>S000003213</idOfSeries>
          <nameOfSeries>Hartford International Opportunities HLS Fund</nameOfSeries>
          <leiOfSeries>12NG3ORRLGKPB6X2TS46</leiOfSeries>
        </seriesReports>
        <seriesReports>
          <idOfSeries>S000003215</idOfSeries>
          <nameOfSeries>Hartford MidCap HLS Fund</nameOfSeries>
          <leiOfSeries>5493005B8B8SS3ML6B08</leiOfSeries>
        </seriesReports>
        <seriesReports>
          <idOfSeries>S000003216</idOfSeries>
          <nameOfSeries>Hartford Capital Appreciation HLS Fund</nameOfSeries>
          <leiOfSeries>HD81ES08IGDHRARL5K21</leiOfSeries>
        </seriesReports>
        <seriesReports>
          <idOfSeries>S000003218</idOfSeries>
          <nameOfSeries>Hartford Ultrashort Bond HLS Fund</nameOfSeries>
          <leiOfSeries>549300MGYSKEXXKZGP29</leiOfSeries>
        </seriesReports>
        <seriesReports>
          <idOfSeries>S000003220</idOfSeries>
          <nameOfSeries>Hartford Small Company HLS Fund</nameOfSeries>
          <leiOfSeries>J7QV5IIJ77AD5ZVLOG17</leiOfSeries>
        </seriesReports>
        <seriesReports>
          <idOfSeries>S000003221</idOfSeries>
          <nameOfSeries>Hartford Stock HLS Fund</nameOfSeries>
          <leiOfSeries>549300OT38D6LNLQZ030</leiOfSeries>
        </seriesReports>
        <seriesReports>
          <idOfSeries>S000003222</idOfSeries>
          <nameOfSeries>Hartford Total Return Bond HLS Fund</nameOfSeries>
          <leiOfSeries>BBUGZQIQV7HQ7WJ85660</leiOfSeries>
        </seriesReports>
        <seriesReports>
          <idOfSeries>S000003224</idOfSeries>
          <nameOfSeries>Hartford Disciplined Equity HLS Fund</nameOfSeries>
          <leiOfSeries>3VZAEGTSICD0I7HNXD38</leiOfSeries>
        </seriesReports>
        <seriesReports>
          <idOfSeries>S000003225</idOfSeries>
          <nameOfSeries>Hartford Dividend and Growth HLS Fund</nameOfSeries>
          <leiOfSeries>549300EJE6BDE34W5603</leiOfSeries>
        </seriesReports>
        <seriesReports>
          <idOfSeries>S000084804</idOfSeries>
          <nameOfSeries>Hartford Small Cap Growth HLS Fund</nameOfSeries>
          <leiOfSeries>549300WXXH7273YRMR32</leiOfSeries>
        </seriesReports>
      </seriesDetails>
    </seriesPage>
    <signaturePage>
      <reportingPerson>HARTFORD SERIES FUND INC</reportingPerson>
      <txSignature>Gregory A. Frost</txSignature>
      <txPrintedSignature>Gregory A. Frost</txPrintedSignature>
      <txTitle>President and Chief Executive Officer</txTitle>
      <txAsOfDate>08/20/2026</txAsOfDate>
    </signaturePage>
  </formData>
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