Key Witness
- Godina: 1960
- Country: United States of America
- Žanr: Drama, Crime, Thriller
- Studio: Metro-Goldwyn-Mayer, Avon Productions
- Ključna riječ: witness, film noir
- Direktor: Phil Karlson
- Uloge: Jeffrey Hunter, Pat Crowley, Dennis Hopper, Joby Baker, Susan Harrison, Johnny Nash