Maurice Charles "Mickey" Harris (January 30, 1917 – April 15, 1971) was an American professional baseball player. He was a pitcher in Major League Baseball (MLB) for nine seasons with the Boston Red Sox, Washington Senators, and Cleveland Indians between 1940 and 1952. Born in New York City, he batted and threw left-handed. Though plagued by chronic arm problems, Harris helped the Red Sox win the 1946 American League pennant en route to the 1946 World Series against the St. Louis Cardinals.