John Leonard Gray (December 11, 1926 – May 21, 2014) was an American professional baseball pitcher, who played in Major League Baseball (MLB) for the Philadelphia Athletics / Kansas City Athletics, Cleveland Indians, and Philadelphia Phillies in all or part of four baseball seasons (1954–55; 1957–58). Listed at 6 ft 4 in (1.93 m), 226 lb (103 kg), he batted and threw right handed. In a four-season career, Gray went 4–18 with a 6.18 ERA in 48 games, including 24 starts, allowing 132 earned runs on 172 hits and 142 walks while striking out 75 in 169 innings of work.