The Return of Doctor X
- År: 1939
- Land: United States of America
- Genre: Sci-fi, Gyser, Mysterium
- Studio: First National Pictures, Warner Bros. Pictures
- Nøgleord: new york city, reporter, series of murders
- Direktør: Vincent Sherman
- Cast: Humphrey Bogart, Rosemary Lane, Wayne Morris, Dennis Morgan, John Litel, Lya Lys