| Ryszard Stadniuk | |
| Birth Name: | Ryszard Tadeusz Stadniuk |
| Birth Date: | 27 October 1951 |
| Birth Place: | Szczecin |
| Sport: | Rowing |
Ryszard Tadeusz Stadniuk (born 27 October 1951) is a Polish rower who competed in the 1976 Summer Olympics and in the 1980 Summer Olympics.
He was born in Szczecin.
In 1976 he was a crew member of the Polish boat which finished sixth in the Coxed pair event.
Four years later he won the bronze medal with the Polish boat in the 1980 coxed fours competition. At the same Olympics he also competed with the Polish team in the 1980 eights contest and finished ninth.