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        <credentials>
          <cik>0001897071</cik>
          <ccc>XXXXXXXX</ccc>
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      <periodOfReport>09-30-2025</periodOfReport>
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      <reportCalendarOrQuarter>09-30-2025</reportCalendarOrQuarter>
      <isAmendment>false</isAmendment>
      <filingManager>
        <name>Andrew Hill Investment Advisors, Inc.</name>
        <address>
          <ns1:street1>4089 TAMIAMI TRAIL NORTH</ns1:street1>
          <ns1:street2>SUITE A-203</ns1:street2>
          <ns1:city>NAPLES</ns1:city>
          <ns1:stateOrCountry>FL</ns1:stateOrCountry>
          <ns1:zipCode>34103</ns1:zipCode>
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      <reportType>13F HOLDINGS REPORT</reportType>
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      <name>Andrew D. W. Hill</name>
      <title>President</title>
      <phone>239-777-3188</phone>
      <signature>/s/ Andrew D. W. Hill</signature>
      <city>Naples</city>
      <stateOrCountry>FL</stateOrCountry>
      <signatureDate>10-14-2025</signatureDate>
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