Britain's Greatest Codebreaker
- Taon: 2012
- Bansa: United Kingdom
- Genre: Documentary, Drama, History
- Studio: Story Center Films, Furnace, Channel 4 Television
- Keyword: suicide, world war ii, genius, cryptographic device, biography, male homosexuality, cryptologist, cryptography, computer science
- Direktor: Clare Beavan, Nic Stacey
- Cast: Ed Stoppard, Henry Goodman, Paul McGann, Asa Briggs, Jean Valentine, David Leavitt