Joseph Edward Cronin (October 12, 1906 – September 7, 1984) was a Major League Baseball (MLB) shortstop, manager and general manager.
He also served as president of the American League (AL) for 14 years.
During his 20-year playing career (1926–1945), Cronin played for three teams, primarily 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 AL player to become an All-Star with two teams; he was elected to the Baseball Hall of Fame in 1956.