| Abbreviation | Definition |
|---|---|
| AFSA | Armed Forces Skeet Association |
| AFTA | Australian Freestyle Taekwondo Academy |
| AFTS | Active Fish Tracking Sonar |
| AFU | All Fired Up |
| AFVH | American Football Verband Hessen |
| AFX | Alaska Freeride Xtreme |
| AG | Aggravating Grunt |
| AG | Anime Gamers |
| AGA | American Gaming Association |
| AGA | American Go Association |
| AGA | American Gymnastics Association |
| AGAF | Arizona Girls Athletic Foundation |
| AGF | Aarhus Gymnastik Forening |
| AGFIS | Association G??n??rale des F??d??rations Internationales des Sports |
| AGI | Adventure Game Interpreter |
| AGL | Altimate Gaming League |
| AGLA | American Grifball League of America |
| AGR | Adventure Game Resource |
| AGR | Age Group Regionals |
| AGT | Adventure Game Theater |