Template:Professional gridiron football leagues in North America

Major: National Football League
Independent: United Football League
Semi-pro: Central Football League · Midwest Football League  · Colonial Football Alliance · Empire Football League · Federacion Mexicana de Futbol Americano · Florida Football Alliance · Great Lakes Football League · Mid Continental Football League · Mid Ohio Football League · Minor League Football Alliance · Minor League Football Association · New England Football League · North American Football League · Northeastern Football Alliance · Northern Elite Football League  · Southern States Football League · Texas/Louisiana Southern Football Association · Texas United Football League · Oklahoma Metro Football League · United States Football Alliance
Women's: Independent Women's Football League · Women's Football Alliance · Women's Spring Football League
Defunct major: All-America Football Conference · American Football League (1926) · American Football League (1936–1937) · American Football League (1940–1941) · American Football League (1960–1969) · National Football League (1902) · New York Pro Football League · Ohio League · United States Football League · World Football League
Defunct minor: American Association (1936–1941)/American Football League (1946–1950) · American Football League (1934) · American Football League (1938–1939) · American Football League (1944) · Anthracite League · Atlantic Coast Football League · Continental Football League · Dixie League · Eastern League of Professional Football · Midwest Football League · Pacific Coast Professional Football League · Regional Football League · Spring Football League · United Football League (1961) · World League of American Football  · XFL
Defunct Semi-pro: Hawaii Football League · Virginia-Carolina Football League
Defunct women's: National Women's Football Association · Women's Football League · Women's Professional Football League
Folded or merged before any games were played: Asia Pacific Football League · International Football Federation  · Professional Spring Football League
Future/planned: United National Gridiron League (Spring 2010) · All American Football League (Spring 2010) ·  New United States Football League (Spring 2011)

National: Arena Football 1 · American Indoor Football Association · Indoor Football League  
Regional: Continental Indoor Football League · Southern Indoor Football League
Women's: Lingerie Football League
Semi-pro: American Professional Football League · Independent Indoor Football Alliance
Defunct: Arena Football League · af2 · Eastern Indoor Football League · Indoor Football League (1999–2000) · Indoor Professional Football League · Intense Football League · National Indoor Football League · Professional Indoor Football League · United Indoor Football · World Indoor Football League (2007)
Folded or merged before any games were played: North American Indoor Football League (2005) · North American Indoor Football League (2007) · World Indoor Football League (1988) · Xtreme Football League