The Engineer's Thumb
- Tahun: 1923
- Negara: United Kingdom
- Genre: Crime, Drama, Mystery
- Studio: Stoll Picture Productions
- Kata kunci: sherlock holmes
- Pengarah: George Ridgwell
- Pelakon: Eille Norwood, Hubert Willis, Bertram Burleigh, Ward McAllister, Mercy Hatton
