| 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) |