| Abbreviation | Definition |
|---|---|
| AGU | Arabian Gulf University |
| AGU | Association of Global Universities |
| AH | American History |
| AHC(s) | academic health center(s) |
| AHHS | Allied Health and Health Sciences |
| AHRQ | Agency for Healthcare Research and Quality |
| AHSA | African Heritage Studies Association |
| AHSA | American Humanics Student Association |
| AI | Aakash Institute |
| AI | Absolutely Incomplete |
| AI | African Institute |
| AI | Anti-Intellectual |
| AI | Associate Instructor |
| AIAS | Academy of Interactive Arts Sciences |
| AIAS | American Institute of Afghanistan Studies |
| AIAS | American Institute of Architecture Students |
| AIAS | Australian Institute of Alpine Studies |
| AIATS | All India Aakash Test Series |
| AIBN | Australian Institute for Bioengineering and Nanotechnology |
| AIBT | American Institute of Biofeedback Technology |