Mark Harrington may refer to:
- Mark Harrington (HIV/AIDS activist) (born 1959 or 1960), American AIDS activist
- Mark Harrington (anti-abortion activist), American anti-abortion activist
- Mark Raymond Harrington (1882–1971), American archeologist
- Mark Harrington (painter) (born 1952), American-born Europe-based painter
This disambiguation page lists articles about people with the same name.
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