The Manster
- Rok: 1959
- Země: United States of America, Japan
- Žánr: Horor, Vědeckofantastický
- Studio: Lopert Pictures Corporation, Shaw-Breakston Enterprises, United Artists of Japan, William Shelton
- Klíčové slovo: monster, transformation, mad scientist, murder, police investigation, two-headed monster, scientific experiment
- Ředitel: George P. Breakston, Kenneth G. Crane
- Obsazení: Peter Dyneley, Jane Hylton, Tecu Nakamura, Terri Zimmern, Norman Van Hawley, Jerry Itó