Emmett Dalton (May 3, 1871 – July 13, 1937) was an American outlaw, train robber and member of the Dalton Gang in the American Old West. Part of a gang attempted robbery of two banks in Coffeyville, Kansas, on October 5, 1892, he was the only member of five to survive, despite receiving 23 gunshot wounds. Two of his brothers were killed. After serving 14 years in prison for the crime, Dalton was pardoned.
He moved to California, where he capitalized on his notoriety to publish books and become an actor in Hollywood. His first book, Beyond the Law (1918) was adapted as a film in which he played himself. His second book, When the Daltons Rode (1931), co-written with Jack Jungmeyer, Sr, was adapted posthumously as a 1940 film of the same name.