| First name and last name | Lev Dyomin |
| Date of birth | 11.01.1926 |
| Date of death | 18.12.1998 |
| Nationality | RUS |
| Space Agency | Russian Federal Space Agency (ROSCOSMOS) (RFSA) |
| Status | Dead |
| Type of astronaut | Government agency |
| Wikipedia | https://en.wikipedia.org/wiki/Lev_Dyomin |
Soyuz 15
Lev Stepanovich Dyomin (Russian: Лев Степанович Дёмин; January 11, 1926, in Moscow – December 18, 1998, in Zvyozdny Gorodok) was a Soviet cosmonaut who flew on the Soyuz 15 spaceflight in 1974. This spaceflight was intended to dock with the space station Salyut 3, but the docking failed.