Johnny Hamlet (Italian: Quella sporca storia nel West, lit. 'That Dirty Story in the West') is a 1968 Italian film directed by Enzo G. Castellari. The film is a Spaghetti Western version of William Shakespeare's tragedy Hamlet.

Johnny Hamilton returns to his Texas home from the American Civil War where he fought for the Confederacy. He camps with a theater troupe who is rehearsing Hamlet. When they are attacked by gunfighters, Johnny defends the artists and leaves immediately.

Arriving to his Ranch El Señor, where he finds that his father was killed by the Mexican bandit Santana and his mother Gertry has married his uncle Claude. He is distressed by this disrespect. His friend Horace consoles him and gives him a silver decoration found at the killing site. He goes to a cave cemetery where he makes the grave digger to open the grave of Santana. The skeleton wears a belt with silver decorations like the one found by Horace.

Johnny reconnects with Emily. He suspects that lost Confederate gold is related to the killing. The theater troupe arrive to town and Johnny sleeps with an actress.

Emily is killed by Claude. Her body and Johnny's father's revolver are found in the river by her father, the sheriff. The actress is also killed by Claude.

Johnny searches for Santana and finds him and Claude hidden. They had hidden the Confederate gold. They capture Johnny, who instills doubt in Santana about trusting Claude.

Johnny is found by the sheriff who puts him on a decussate cross. He is freed by Horace.

Santana and his men attack the ranch. Gertry confronts Claude and is shot by one of Claude's henchmen. After fighting the bandits, Claude checks his gold. Johnny fights him and kill him.