| Cipher Bureau | |
| Director: | Charles Lamont |
| Producer: | Franklyn Warner |
| Cinematography: | Arthur Martinelli |
| Distributor: | Grand National Pictures |
| Runtime: | 64 minutes |
| Country: | United States |
| Language: | English |
Cipher Bureau is a 1938 American film directed by Charles Lamont. The film was successful enough to elicit a sequel, Panama Patrol.
Philip Waring, the head of a listening agency in Washington D.C., is dedicated to breaking up a foreign radio-spy ring. He enlists his naval-officer brother and tangles with beautiful spies.