| PROFESSIONAL LEAGUES |
|---|
| NFL NFC West * AFC West NFC North * AFC North NFC South * AFC South NFC East * AFC East |
| ARENA FOOTBALL LEAGUE |
| CFL |
| UNITED FOOTBALL LEAGUE |
| Defunct pro leagues |
| ARENA FOOTBALL LEAGUE (original) |
| arenafootball2 American Conference National Conference Defunct af2 teams |
| NFL EUROPA/ WLAF |
| USFL |
| WORLD FOOTBALL LEAGUE |
| XFL |
| NAIA |
|---|
| CSFL |
| DAC |
| FRONTIER |
| GREAT PLAINS |
| HEART OF AMERICA |
| KANSAS |
| MID-SOUTH |
| MID-STATES |
| INDEPENDENTS |
| UNAFFILIATED |
|---|
| CANADIAN INTERUNIVERSITY SPORT |
|---|
| AUS |
| QUFL |
| OUA |
| CWUAA | JUNIOR COLLEGES |
| NJCAA |
| NCFA |
| SCFA |
| DEFUNCT COLLEGE TEAMS |
| FUTURE COLLEGE TEAMS |
| NEW COLLEGE HELMETS FOR 2010 |
| THE "100" LOGO |
| SOME MADE-UP STUFF |
| SOME MADE-UP STUFF 2 |