| Abbreviation | Definition |
|---|---|
| AAAB | Accounting Alumni Advisory Board |
| AAAB | Asian American Advisory Board |
| AAAC | Affirmative Action Advisory Committee |
| AAAC | AI in Advancement Advisory Council |
| AAB | Associates Advisory Board |
| AABS | Assurance and Advisory Business Services |
| AADAC | African American District Advisory Council |
| ABAB | Administrative Burden Advisory Board |
| ABAB | Administrative Burdens Advisory Board |
| ABAB | Australasian BIM Advisory Board |
| ABAC | American Bioethics Advisory Commission |
| ABCAB | Amgen Bioprocessing Center Advisory Board |
| ABDM | Advisory Board On Disarmament Matters |
| ABLM | Advisory Body on Legal Matters |
| ABSO | Advisory Board for Student Organizations |
| ABSTI | Advisory Board of Scientific and Technological Information |
| ABVT | Advisory Body Vocational Training |
| ACAG | Atlantic Coast Advisory Group |
| ACAN | Advisory Committee on Antarctic Names |
| ACAS | Advisory Conciliation and Arbitration Service |
