American Football League is a name shared by several leagues of American football. * American Football League (1926), also known as AFL I (1926) * American Football League (1936), also known as AFL II (1936-1937) * American Football League (1940), also known as AFL III (1940-1941) * American Football League, also known as AFL IV (1960-1969), merged with National Football League in 1970 * American Football League (1934), based in American South and Southwest * American Football League (1938), evolved from Midwest Football League * American Football League (1944), outgrowth of the Northeast War Industries League * American Association (football), changed its name to the American Football League in 1946