Warlock is a 1959 American Western film produced and directed by Edward Dmytryk starring Richard Widmark, Henry Fonda, Anthony Quinn and Dorothy Malone. The picture is an adaptation of the novel Warlock by American author Oakley Hall. The film is both set and filmed in Utah.

Fonda portrays Clay Blaisedell, a freelance marshal in the fictional town of Warlock with implacable methods of dealing with troublemakers, while Widmark portrays Johnny Gannon, a former outlaw who eventually becomes the town's deputy sheriff. A subplot centers on Blaisedell's club-footed assistant, Tom Morgan, played by Quinn, who has sublimated his relationships and ambition into a warped devotion to Blaisedell, the only person Morgan thinks does not look down on him for his disability.

As in the earlier film Wichita (1955), the conflict of the law with the outlaw runs parallel to the resentment of the town's own leadership.