| Abbreviation | Definition |
|---|---|
| AACR | American Association for Cancer Research |
| AACR | Association of Americans for Civic Responsibility |
| AACSC | Apartment Association California Southern Cities |
| AACTS | Adolescents and Adults Choosing True Solutions |
| AACVEF | Action Against Crime and Violence Education Fund |
| AADA | Advocates Against Domestic Abuse |
| AADA | American Academy of Dermatology Association |
| AADA | Asians Against Domestic Abuse |
| AADA | Association for Adult Development and Aging |
| AADA | Australian Antique Dealers Association |
| AADE | American Association of Diabetes Educators |
| AADEERF | American Association of Diabetes Educators Education and Research Foundation |
| AADG | Americans Against the Darfur Genocide |
| AADI | Asian American Diabetes Initiative |
| AADVS | Alliance Area Domestic Violence Shelter |
| AAEGT | American Association Of Educational Gymnastic Teachers |
| AAEI | Asosiasi Analis Efek Indonesia |
| AAES | American Association of Engineering Societies |
| AAF | Actual Art Foundation |
| AAF | American Architectural Foundation |