Murder Weapon
- Blwyddyn: 1989
- Gwlad: United States of America
- Genre: Horror, Thriller
- Stiwdio: Filmtrust, Cinema Home Video Productions
- Allweddair: sanitarium
- Cyfarwyddwr: David DeCoteau
- Cast: Linnea Quigley, Lyle Waggoner, Karen Russell, Stephen Steward, Mike Jacobs Jr., Allen First