Mystery of the Riverboat
- År: 1944
- Land: United States of America
- Genre: Action, Kriminalitet
- Studio: Universal Pictures
- Nøgleord: movie serial
- Direktør: Ray Taylor, Lewis D. Collins
- Cast: Robert Lowery, Marjorie Clements, Lyle Talbot, Arthur Hohl, Oscar O'Shea, Joe Devlin