Marina Antonyuk (Russian: Марина Антонюк; born 12 May 1962) is a Russian former track and field athlete who competed in the shot put. She set a personal best of in 1986.[1] She represented the Soviet Union at the 1991 World Championships in Athletics, finishing seventh, and at the 1990 European Athletics Championships, coming eighth.[2] She was a silver medallist at the 1992 IAAF World Cup behind Cuba's Belsis Laza.[3]
Antonyuk was the 1987 national shot put champion at the Soviet Athletics Championships.[4]
| 1990 | European Championships | Split, Yugoslavia | 8th | Shot put | 18.82 m | ||
| 1991 | World Championships | Tokyo, Japan | 7th | Shot put | 19.12 m | ||
| 1992 | IAAF World Cup | Havana, Cuba | bgcolor=silver | 2nd | Shot put | 17.98 m |