Harkin is an Irish surname, from the Gaelic Ó hEarcáin. It may refer to:
Allana Harkin, Canadian comedian and playwright Bryan Harkin (born 1980), Northern Irish footballer Fergal Harkin (born 1976), Irish footballer James Bernard Harkin (1875–1955), Canadian commissioner for national parks Janet Quin-Harkin, author Marian Harkin (born 1953), Irish politician Margo Harkin (born 1951), Irish filmmaker Michael E. Harkin (born 1958), U.S. anthropologist Mikko Härkin (born 1979), Finnish musician Mo Harkin (born 1979), footballer Ruairí Harkin (born 1989), footballer Ruth Harkin (born 1944), U.S. lawyer; wife of Tom Harkin Terry Harkin (born 1941), Northern Irish footballer Tom Harkin (born 1939), former United States Senator from Iowa William Harkin (1831–1881), Canadian doctor and politician
See also Harkin Bay, Nunavut, Canada Harkin–Engel Protocol—international agreement aimed at ending the worst forms of child labor in cocoa production Harkin's General Store Harkins Oddo–Harkins rule