Oscar José Zamora Sosa (born September 23, 1944, died July 2, 2021) is a former professional baseball player. A right-handed pitcher, he played all or part of four seasons in Major League Baseball, playing for the Chicago Cubs during 1974–76, and the Houston Astros in 1978.
In his career, he had 13 wins against 14 losses, and an earned run average of 4.53.
After his Major League career was over, Zamora then pitched for the Miami Amigos of the Inter-American League in 1979. Zamora was running a shoe business at the time, so he only attended games when he was pitching.