John Holliday may refer to: Doc Holliday (1851–1887), American dentist, gambler, and gunfighter, famed for the Gunfight at the O.K. Corral Doc Holliday (American football), American football coach John Holliday (barrister) John Holliday (judoka) (born 1960), British Olympic judoka John Holliday (pioneer), early American pioneer of Western Virginia John Holliday, guitarist of the British pop rock band The Escape Club John Holliday, a Texas freebooter who gave his name to Holliday, Texas Johnny Holliday, American radio sportscaster