Template:Professional gridiron football leagues in North America

American football

Major: National Football League
Semi-pro: Central Football League • Empire 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 • Southern States Football League • United National Football League • United States Football Alliance
Women's: Women's Professional Football League • National Women's Football Association • Independent Women's Football League • Women's 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) • United States Football League • World Football League • XFL
Defunct minor/semi-pro: American Association (1936-1941)/American Football League (1946-1950) • American Football League (1934) • American Football League (1938-1939) • American Football League (1944) • Atlantic Coast Football League • Continental Football League • Dixie League • Pacific Coast Professional Football League • Hawaii Football League • NFL Europa • Regional Football League • Spring Football League • United Football League
Folded or merged before any games were played: Professional Spring Football League
Planned: All American Football League (Spring 2009) • United Football League (Fall 2009)

Canadian football

Major: Canadian Football League
Minor/Semi-pro: Alberta Football League • Maritime Football League • Canadian Junior Football League • Quebec Junior Football League • Quebec Bantam Football League
Defunct: Quebec Juvenile Football League • Quebec Senior Football League

Arena/indoor football

Major: Arena Football League
Minor: af2 • American Indoor Football Association • American Professional Football League • Continental Indoor Football League • Independent Indoor Football Alliance • Intense Football League • United Indoor Football
Defunct: Eastern Indoor Football League • Indoor Football League • Indoor Professional Football League • National Indoor Football League • Professional Indoor Football League • World Indoor Football League
Folded or merged before any games were played: North American Indoor Football League (2005) • North American Indoor Football League (2007) • World Indoor Football League • Xtreme Football League