Leland Stanford "Larry" MacPhail Sr. was an American lawyer and an executive in Major League Baseball. He served as a high-ranking executive, including club president and general manager, with the Cincinnati Reds, Brooklyn Dodgers and New York Yankees, and was a one-third owner of the Yankees from 1945 through 1947. MacPhail's sons and grandsons were also sports executives. He was inducted into the National Baseball Hall of Fame in 1978.

The Cincinnati Reds are an American professional baseball team based in Cincinnati. The Reds compete in Major League Baseball (MLB) as a member club of the National League (NL) Central Division and were a charter member of the American Association in 1881 before joining the NL in 1890.