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