Blackjack Ketchum, Desperado is a 1956 American western film directed by Earl Bellamy and starring Howard Duff and Victor Jory.

When a friend in New Mexico is about to be shot, Tom Ketchum draws his gun and kills the brother of Jared Tetlow, a wealthy cattleman.

Tom goes to a ranch run by Nita Riordan and her father, where a relationship begins and marriage is discussed.

Tetlow returns, learns from Laurie Webster about the shooting and vows to get vengeance against the man who killed his brother.

A cattle war begins as well, but law and order prevails and Tom decides to stay and settle down.