| Abbreviation | Definition |
|---|---|
| AAAM | Asian American Alliance of Marin |
| AAAP | Alliance for Arizona Animal Protection |
| AAAP | Atheist Agnostic Alliance Pakistan |
| AAAP | Atheist and Agnostics Alliance Pakistan |
| AAAP | Atheists & Agnostics Alliance Pakistan |
| AABA | All American Basketball Alliance |
| AABA | All-American Basketball Alliance |
| AABP | Alliance of Area Business Publishers |
| AACA | Alliance Against Circus Animals |
| AACA | Alliance Against Cruelty to Animals |
| AACT | Advocacy Alliance Center of Texas |
| AACT | Alliance for the Advancement of Cellular Therapies |
| AAD | Auctioned Alliance Destruction |
| AADT | American Alliance Drug Testing |
| AAF | Alliance of American Football |
| AAFD | Arab Alliance for Freedom and Democracy |
| AAGW | Arts Alliance of Greater Waynesboro |
| AAHAA | Antioch Area Healthcare Accessibility Alliance |
| AAHC | Artists Alliance of the Hill Country |
| AAHM | Alliance Against Hunger and Malnutrition |