James Raleigh "Biz" Mackey was an American catcher and manager in Negro league baseball. He played for the Indianapolis ABCs (1920–1922), New York Lincoln Giants (1920), Hilldale Daisies (1923–1931), Philadelphia Royal Giants (1925), Philadelphia Stars (1933–1935), Washington / Baltimore Elite Giants (1936–1939), and Newark Dodgers/Eagles.

The Negro leagues were United States professional baseball leagues comprising teams of African Americans. The term may be used broadly to include professional black teams outside the leagues and it may be used narrowly for the seven relatively successful leagues beginning in 1920 that are sometimes termed "Negro Major Leagues".