The 13th Letter
- Annu: 1951
- Paese: United States of America
- Genre: Crime, Mystery, Thriller
- Studio: 20th Century Fox
- Parolla chjave: letter, rumors
- Direttore: Otto Preminger
- Cast: Linda Darnell, Charles Boyer, Michael Rennie, Constance Smith, Françoise Rosay, Judith Evelyn