Oscar "Heavy" Johnson (1895–1960) was a baseball player in the Negro leagues. He played catcher and outfielder. Johnson was one of the Negro league's foremost power hitters in the 1920s, reportedly weighing 250 pounds, and known for hitting home runs. Longtime MLB umpire Jocko Conlan once said that Johnson "could hit a ball out of any park." In 2012, he was inducted into the Kansas Baseball Hall of Fame along with several other Negro League players.