| Birth Date: | 8 October 1935 |
| Birth Place: | Grozny, Russian SFSR, Soviet Union |
| Death Date: | 28 March 2013 (aged 77) |
| Death Place: | Krasnodar Krai, Russia |
| Sport: | Boxing |
| Club: | CSKA Moscow |
| Height: | 167 cm |
Yuri Radonyak (8 October 1935 – 28 March 2013) was a Russian welterweight boxer who competed for the Soviet Army club. In 1958 he placed second at the Soviet championships and won the World Army Championships. Two years later he won the Soviet title and a silver medal at the 1960 Olympics. He retired in 1962 with a record of 197 wins out of 226 bouts and later had a long career as a boxing coach. In 1962–73 he worked at the Soviet Army club in Moscow and in 1972–76 coached the Soviet national team. The 1972 Olympic gold medalist Vyacheslav Lemeshev was his personal trainee.