Joseph Edward Cronin (October 12, 1906 – September 7, 1984) was an American professional baseball player, manager and executive. He played in Major League Baseball (MLB) as a shortstop, most notably as a member of the Boston Red Sox. Cronin spent over 48 years in baseball, culminating with 14 years as president of the American League (AL).
During his 20-year playing career (1926–1945), Cronin played for the Pittsburgh Pirates, Washington Senators and the Boston Red Sox; he was a player-manager for 13 seasons (1933–1945), and served as manager for two additional seasons (1946–1947). A seven-time All-Star, Cronin became the first American League player to become an All-Star with two teams; he was elected to the Baseball Hall of Fame in 1956.