The 1983 Cleveland Indians season was the 83rd for the franchise. It was the final season under the ownership of Steve O'Neill, who had owned the team since 1978. He died on August 29, 1983, with his estate owning the team until 1986.
Note: W = Wins; L = Losses; ERA = Earned run average; G = Games pitched; GS = Games started; SV = Saves; IP = Innings pitched; H = Hits allowed; R = Runs allowed; ER = Earned runs allowed; BB = Walks allowed; K = Strikeouts
Established in 1894 Former names (all in Cleveland unless noted) - Grand Rapids Rustlers, Lake Shores, Bluebirds, Bronchos, Naps, and Indians Based in Cleveland, Ohio