The Long Arm
- Release Year
- 1956
- Runtime
- 1h 36m
- Genres
- Crime
- Drama
- Mystery
- Thriller
- Directed By
- Charles Frend

Scotland Yard detectives attempt to solve a spate of safe robberies across England beginning with clues found at the latest burglary in London. The film is notable for using a police procedural style made popular by Ealing in their 1950 film The Blue Lamp. It is known in the US as The Third Key.












