| Sergey Gusev | |
| Nationality: | Russian |
| Birth Date: | 9 December 1947 |
| Birth Place: | Moscow, Soviet Union |
Sergey Gusev (Russian: Сергей Иванович Гусев, born 9 December 1947) is a Russian former swimmer. He competed in three events at the 1968 Summer Olympics for the Soviet Union.[1]