Johnny O'Clock
- Annu: 1947
- Paese: United States of America
- Genre: Crime, Drama
- Studio: J.E.M. Productions, Columbia Pictures
- Parolla chjave: gambling, film noir, club
- Direttore: Robert Rossen
- Cast: Dick Powell, Evelyn Keyes, Lee J. Cobb, Ellen Drew, Nina Foch, Thomas Gomez