Hagin is a surname. Notable people with the surname include:
Joe Hagin (born 1956), American politician Kenneth E. Hagin (1917–2003), American Pentecostal preacher Wayne Hagin (born 1956), American sportscaster Fanny Hagin Mayer (1899–1990), American folklorist, translator
See also Hagins, another surname Hagans, another surname Hagon, another surname Hagen, a city in Germany