Hamill is a surname. Notable people with the surname include:
Aaron Hamill, Australian rules footballerAlex Hamill (born 1961), Scottish footballerBilly Hamill, motorcycle speedway riderBrendan Hamill (disambiguation), several peopleChristine Hamill, mathematicianChristopher Hamill, lead singer of the 1980s pop group KajagoogooClaire Hamill, singer-songwriterDavid Hamill, Queensland Australian Labor Party politicianDesmond Hamill, British television reporterDorothy Hamill, figure skaterHarry Hamill, Australian rugby footballerJames A. Hamill, United States Democratic Party politicianJim Hamill, singer with The Kingsmen and Oak Ridge BoysJamie Hamill, footballerJoe Hamill, footballerJohn Hamill, actorJohn Hamill (baseball) (1860–1911), American baseball playerMatt Hamill, wrestlerMark Hamill, actorMicky Hamill, footballerPatrick Hamill, United States House of RepresentativesPete Hamill, journalist and writerPeter J. Hamill (c.1885–1930), New York assemblymanRed Hamill (Robert George Hamill, born 1917), ice hockey playerRob Hamill, New Zealand rower and political candidate whose brother was a victim of the Khmer RougeTommy Hamill (disambiguation), several peopleZach Hamill, ice hockey player