Doomwatch
- Blwyddyn: 1972
- Gwlad: United Kingdom
- Genre: Horror, Science Fiction
- Stiwdio: Tigon British Film Productions
- Allweddair: fish, contamination, chemical leak
- Cyfarwyddwr: Peter Sasdy
- Cast: Ian Bannen, Judy Geeson, John Paul, George Sanders, Simon Oates, Jean Trend