| Abbreviation | Definition |
|---|---|
| ASWN | Associated Students of Western Nevada |
| ASYC | Associated Students of Yuba College |
| ATLAS | Authentic Teaching Learning and Assessment of Students |
| ATO | Alpha Tau Omega |
| ATS | Athletic Trainer Student |
| ATSA | Association of Togolese Students in America |
| ATSE | AglaSem Talent Search Examination |
| ATSO | Accounting and Tax Student Organization |
| ATSO | Accounting and Taxation Student Organization |
| ATSO | Athletic Training Student Organization |
| ATZ | Alpha Tau Zeta |
| AUCSA | Auckland University Commerce Student Association |
| AUCSA | Auckland University Commerce Students Association |
| AUJS | Australasian Union of Jewish Students |
| AUSA | All University Student Association |
| AUSA | Auckland University Students Association |
| AUSC | Air University Students Club |
| AUSEP | Afghan University Students Exchange Program |
| AUSEP | Afghanistan University Student Exchange Program |
| AUSF | Aberdeen University Student Forum |