| Birth Date: | 16 January 1964 |
| Birth Place: | Alma-Ata, Kazakh SSR, Soviet Union |
| Height: | 1.85m (06.07feet) |
| Weight: | 81kg (179lb) |
| Sport: | Swimming |
| Club: | Dynamo Almaty |
Konstantin Yuryevich Petrov (Russian: Константин Юрьевич Петров; born 16 January 1964) is a retired Kazakhstani butterfly swimmer. He won a bronze medal at the 1988 Summer Olympics and a gold medal at the 1987 European Aquatics Championships in the 4 × 100 m medley relay.