Finnigan is a surname. Notable people with the surname include:Annette Finnigan (1873–1940), American suffragette and philanthropist Brian Finnigan, founder of the house of Finnigans Charles Finnigan, surgeon, rear-admiral and dental surgeon in the United Kingdom's Royal Navy Eddie Finnigan, ice hockey player Frank Finnigan, ice hockey player Jennifer Finnigan, Canadian actress Robert E. Finnigan, American scientist