Demon Seed
- År: 1977
- Land: United States of America
- Genre: Gyser, Sci-fi
- Studio: Metro-Goldwyn-Mayer
- Nøgleord: man vs machine, rape, artificial intelligence (a.i.), computer, technology
- Direktør: Donald Cammell
- Cast: Julie Christie, Fritz Weaver, Gerrit Graham, Berry Kroeger, Lisa Lu, Larry J. Blake