Harrigan may refer to:

Harrigan (surname) Harrigan (TV series), Canadian children's television series Hop Harrigan, comic-strip aviator "Big John" Harrigan, nurturing pedophile in film L.I.E. "Harrigan" (song), by George M. Cohan
George M. Cohan from Fifty Miles From Boston Harrigan and Son, a 1960–1961 ABC situation comedy starring Pat O'Brien and Roger Perry, which used Cohan's song as its theme tune. Harrigan, N.Y., part of Ellenburg, New York

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