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