Ian Harrison may refer to:
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Ian Harrison (Royal Marines officer) (1919–2008), officer in the Royal Marines
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Ian Harrison (wrestler) (born 1969), wrestler in the X Wrestling Federation
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Ian Harrison (judge), judge on the Supreme Court of New South Wales (2007–present)
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Ian Harrison (musician), musician with the early music group Oni Wytars
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Ian Harrison (racing driver), D1 Grand Prix racedriver
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Ian Harrison (table tennis) (born 1939), English table tennis international
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Ian Harrison (sailor) (1937–2016), Paralympic Gold Medalist sailor
{{hndis, Harrison, Ian