San Quentin
- Blwyddyn: 1946
- Gwlad: United States of America
- Genre: Crime
- Stiwdio: RKO Radio Pictures
- Allweddair: prison, film noir, san quentin
- Cyfarwyddwr: Gordon Douglas
- Cast: Lawrence Tierney, Barton MacLane, Marian Carr, Harry Shannon, Carol Forman, Joe Devlin