| Birth Date: | 14 September 1960 |
| Birth Place: | Salzgitter, West Germany |
| Height: | 1.95m (06.4feet) |
| Weight: | 72kg (159lb) |
| Sport: | Swimming |
Peter Knust (born 14 September 1960) is a retired German swimmer who won four medals in freestyle relays at the European and world championships in 1977, 1978 and 1981.