I, Monster
- साल: 1971
- देश: United Kingdom
- शैली: Horror, Science Fiction
- स्टूडियो: Amicus Productions, British Lion Film Corporation
- कीवर्ड: based on novel or book, mad scientist, victorian england, murder, doctor, jekyll and hyde, split personality, killing a cat
- निदेशक: Stephen Weeks
- कास्ट: Christopher Lee, Peter Cushing, Mike Raven, Richard Hurndall, George Merritt, Kenneth J. Warren