Fifty Fathoms Deep
- Blwyddyn: 1931
- Gwlad: United States of America
- Genre: Drama, Adventure
- Stiwdio: Columbia Pictures
- Allweddair: love triangle, boat
- Cyfarwyddwr: Roy William Neill
- Cast: Jack Holt, Loretta Sayers, Richard Cromwell, Mary Doran, Wallace MacDonald, Christina Montt
