| Abbreviation | Definition |
|---|---|
| AFF | Asean Football Federation |
| AFF | Auckland Football Federation |
| AFFA | Association of Football Federations of Azerbaijan |
| AFFL | American Fantasy Football League |
| AFFL | American Flag Football League |
| AFFL | Anderson Fundamental Football League |
| AFFP | American Football Federation of the Philippines |
| AFL | Amateur Football League |
| AFL | American Football |
| AFL | Aquashicola Football League |
| AFL | Australia Football League |
| AFL | Australian Football League |
| AFL | Australian Football Leauge |
| AFL | Australian Football Losers |
| AFL | Australian Rules Football |
| AFLC | American Football League of China |
| AFLG | Australian Football League Germany |
| AFLN | American Football League Nederland |
| AFLPA | Arena Football League Players Association |
| AFMA | Australian Football Media Association |