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  <headerData>
    <submissionType>13F-HR</submissionType>
    <filerInfo>
      <liveTestFlag>LIVE</liveTestFlag>
      <filer>
        <credentials>
          <cik>0000003520</cik>
          <ccc>XXXXXXXX</ccc>
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      <periodOfReport>06-30-2014</periodOfReport>
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      <reportCalendarOrQuarter>06-30-2014</reportCalendarOrQuarter>
      <isAmendment>false</isAmendment>
      <filingManager>
        <name>FRED ALGER MANAGEMENT INC</name>
        <address>
          <ns1:street1>360 PARK AVENUE SOUTH</ns1:street1>
          <ns1:city>NEW YORK</ns1:city>
          <ns1:stateOrCountry>NY</ns1:stateOrCountry>
          <ns1:zipCode>10010</ns1:zipCode>
        </address>
      </filingManager>
      <reportType>13F HOLDINGS REPORT</reportType>
      <form13FFileNumber>028-00869</form13FFileNumber>
      <provideInfoForInstruction5>N</provideInfoForInstruction5>
    </coverPage>
    <signatureBlock>
      <name>Hal Liebes</name>
      <title>Executive Vice President</title>
      <phone>212-806-2966</phone>
      <signature>/s/ Hal Liebes</signature>
      <city>New York</city>
      <stateOrCountry>NY</stateOrCountry>
      <signatureDate>08-14-2014</signatureDate>
    </signatureBlock>
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