| AAAA | American Association of Advertising Agencies | |
| AAAA | Army Aviation Association of America | |
| AAAA | Battery Size | |
| AAAA | American Association for Affirmative Action | |
| AAAA | American Academy of Adoption Attorneys (Washington, DC) | |
| AAAA | Australian Automotive Aftermarket Association | |
| AAAA | American Association of Amateur Astronomers | |
| AAAA | Alliance for Aviation Across America (Washington, DC) | |
| AAAA | Albuquerque Aerostat Ascension Association | |
| AAAA | Asociación Argentina Amigos de la Astronomía | |