The Vanishing Dagger
- Taon: 1920
- Bansa: United States of America
- Genre: Adventure
- Studio: Universal Film Manufacturing Company
- Keyword: movie serial, lost film, silent serial
- Direktor: Eddie Polo, J.P. McGowan, Edward A. Kull
- Cast: Eddie Polo, C. Norman Hammond, Laura Oakley, Peggy O'Day, Thelma Percy, Ray Ripley
