- National Football League (1922-)
- Major League Baseball (1905-)
- National Basketball Association (1949-)
- Canadian Football League (1958-)
- National Hockey League (1917-)
- Major League Soccer (1996-)
- American Professional Football Association (1920-1921) (=National Football League)
- All-America Football Conference (1946-1949) (Merged with National Football League)
- American Football League (1960-1969) (Merged with National Football League)
- World Football League (1974-1975) (Folded)
- United States Football League (1983-1985) (Folded)
- XFL (2001) (Folded)
- National Association (1871-1875) (Folded)
- National League (1876-1902) (Merged with American League as Major League Baseball)
- American Association (1882-1891) (Merged with National League)
- Union Association (1884) (Folded)
- Players' National League (1890) (Folded)
- American League (1901-1902) (Merged with National League as Major League Baseball)
- Major League Baseball (1903) (Dissolved into American League and National League)
- American League (1904) (Merged with National League as Major League Baseball)
- National League (1904) (Merged with American League as Major League Baseball)
- Federal League (1914-1915) (Folded)
- National Basketball League (1937-1949) (Merged with Basketball Association of America as National Basketball Association)
- Basketball Association of America (1946-1949) (Merged with National Basketball League as National Basketball Association)
- American Basketball Association (1967-1976) (Merged with National Basketball Association)
- National Hockey Association (1910-1917) (Folded)
- Pacific Coast Hockey Association (1911-1924) (Folded)
- Western Canada Hockey League (1921-1925) (=Western Hockey League)
- Western Hockey League (1925-1926) (Folded)
- World Hockey Association (1972-1979) (Merged with National Hockey League)
- North American Soccer League (1968-1984)
- North American Soccer League Indoor (1979-1984)