Istanbul
- Taon: 1957
- Bansa: Turkey, United States of America
- Genre: Crime, Drama, Romance, Thriller
- Studio: Universal International Pictures
- Keyword: diamond, flashback, adventurer, color film noir
- Direktor: Joseph Pevney
- Cast: Errol Flynn, Cornell Borchers, John Bentley, Torin Thatcher, Leif Erickson, Peggy Knudsen