South Australian National Football League was created in 1877.
Australian Football League was created in 1897.
Ontario Australian Football League was created in 1989.
West Australian Football League was created in 1885.
United States Australian Football League was created in 1996.
North East Australian Football League was created in 2010-11.
Exactly that: leagues. There is the AFL (Australian Football League), and some lower level leagues: SANFL (South Australian National Football League), WAFL (West Australian Football League), VFL (Victorian Football League), etc.
Fortescue National Football League was created in 1956.
National Indoor Football League was created in 2001.
Newman National Football League was created in 1972.
National Football League was created on 1920-08-20.
Korean National Youth Football League was created in 2009.
National Football League Kickoff game was created in 2002.