| AAAA | Association of American Advertising Agencies (New York, NY) | |
| AAAA | Authentication, Authorization, Accounting and Auditing (remote access security approach that controls network access) | |
| AAAA | Aerial Agricultural Association of Australia | |
| AAAA | Associated Actors and Artistes of America | |
| AAAA | Alamo Area Aquatic Association (San Antonio, TX) | |
| AAAA | Association of Area Agencies on Aging | |
| AAAA | Atlanta Area Aquarium Association | |
| AAAA | Asian Academic Accounting Association | |
| AAAA | Asian American Arts Alliance | |
| AAAA | Association for Applied Animal Andrology | |