| Leonid Gissen | |
| Birth Name: | Leonid Davidovich Gissen |
| Birth Date: | 28 June 1931 |
| Birth Place: | Moscow, Russian SFSR, Soviet Union |
| Death Place: | Moscow, Russia |
| Sport: | Rowing |
Leonid Davidovich Gissen (Russian: Леонид Давыдович Гиссен, 28 June 1931 – 7 February 2005) was a Russian rower who competed for the Soviet Union in the 1952 Summer Olympics and in the 1956 Summer Olympics.
In 1952, he won the silver medal as crew member of the Soviet boat in the eights event.
Four years later he was part of the Soviet boat which was eliminated in the semi-final of the eight competition.