Southern Collegiate Baseball League was created in 1999.
Southern Football League was created in 1894.
Negro Southern League was created in 1920.
Southern Premier League - Tasmania - was created in 1900.
Southern Football League - Scotland - was created in 1940.
Southern Premier Soccer League was created in 2010.
Southern Amateur Football League was created in 1907.
Southern Professional Hockey League was created in 2004.
Young Finnish Agrarian League of the Southern Ostrobothnia was created in 1906.
FA Women's Premier League Southern Division was created in 1992.
Eastern League - baseball - was created in 1923.
Ladies League Baseball was created in 1997.