| Acronym | Definition |
|---|
| AAAC | Astronomy and Astrophysics Advisory Committee (US NSF) |
| AAAC | African American Advisory Committee |
| AAAC | All Aluminum Alloy Conductor (power transmission and distribution) |
| AAAC | Australian Association of Agricultural Consultants |
| AAAC | Affirmative Action Advisory Committee |
| AAAC | Asian Association for Algorithms and Computation |
| AAAC | American Academy of Ambulatory Care |
| AAAC | Academic Affairs Advisory Committee (university) |
| AAAC | Avoid At All Costs |
| AAAC | Australian Aboriginal Affairs Council |
| AAAC | Authentication, Authorization, Accounting, and Charging |
| AAAC | America Alliance Authority and Compliance (US Department of Transportation) |
| AAAC | African American Awareness Club |
| AAAC | Avery Aldridge Activity Center (Flint, Michigan) |
| AAAC | Anti-Armor Automatic Cannon |
| AAAC | American Association of Automatic Control |
| AAAC | Ateneo Alumni Association Canada (Ateneo de Naga University) |
| AAAC | Academic Achievement and Accountability Commission |
| AAAC | Alliance for Augmentative and Alternative Communication (now Helping Autistic Persons Participate Independently through All Communication Techniques) |