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