The Witness Vanishes
- Ano: 1939
- País: United States of America
- Xénero: Action, Adventure, Crime, Mystery, Romance
- Estudo: Universal Pictures
- Palabra clave: escape, scotland yard, insane asylum, revenge, murder, investigator, newspaper man, frame up, universal crime club
- Director: Otis Garrett
- Reparto: Edmund Lowe, Wendy Barrie, Bruce Lester, Forrester Harvey, Walter Kingsford, J.M. Kerrigan