Emmett Dalton was an American outlaw, train robber and member of the Dalton Gang in the American Old West. Part of a gang that attempted to rob 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 later capitalized on his notoriety, both as a writer and as an actor. His 1918 serial story Beyond the Law was adapted as a like-named silent film in which he played himself. His 1931 book When the Daltons Rode was adapted after his death as a 1940 film of the same name.

The Dalton Gang was a group of outlaws in the American Old West during 1890–1892. It was also known as The Dalton Brothers because four of its members were brothers. The gang specialized in bank and train robberies. During an attempted double bank robbery in Coffeyville, Kansas in 1892, two of the brothers and two other gang members were killed; Emmett Dalton survived, was captured, and later pleaded guilty to second-degree murder, although he later asserted that he never fired a shot during the robbery. He was paroled after serving 14 years in prison.