Ryszard Kubiak (born March 22, 1950) is a Polish rower who competed in the 1972 Summer Olympics, in the 1976 Summer Olympics, and in the 1980 Summer Olympics.
He was born in Bydgoszcz.
In 1972 he was the coxswain of the Polish boat which finished sixth in the eights event.
Four years later he finished sixth as cox of the Polish boat in the 1976 coxed pairs competition.
At the 1980 Games he coxed the Polish boat which won the bronze medal in the coxed fours contest. In the same Olympics he also coxed the Polish team in the 1980 eights event and finished ninth.