The Kremlin Letter
- annos singulos: 1970
- Patriam: United States of America
- genus: Thriller, Action
- Studio: 20th Century Fox
- keyword: based on novel or book, undercover agent, anonymous letter, double agent, female spy, moscow, russia, spy ring, spy thriller, kremlin, cold war era, international espionage
- Director: John Huston
- cast: Bibi Andersson, Richard Boone, Nigel Green, Dean Jagger, Lila Kedrova, Micheál Mac Liammóir