| Abbreviation | Definition |
|---|---|
| AUBF | Asian University Basketball Federation |
| AUG | Australian University Games |
| AURA | Australasian Usui Reiki Association |
| AURA | Australian Ultra Runners Association |
| AURFC | Aberdeen University Rugby Football Club |
| AUSC | Africa Union Sports Commission |
| AUSC | ASEAN University Sports Council |
| AVA | Alaska Volleyball Association |
| AVA | Alki Volleyball Association |
| AVA | American Volkssporting Association |
| AVA | Augusta Volleyball Association |
| AVB | Andre Villas Boas |
| AVBL | Aston Valley Baseball League |
| AVC | Asian Volleyball Confederation |
| AVC | Avon Valley Cyclery |
| AVE | Andrews Valley Experience |
| AVO | Athletic Volunteer Organization |
| AVP | Association of Volleyball Professionals |
| AVPE | Aliens Vs. Predator: Extinction |
| AWA | Anime Weekend Atlanta |