| S/NO | Abbr. | Meaning |
| 1 | AAAC | Academic Achievement and Accountability Commission |
| 2 | AAAC | Academic Affairs Advisory Committee (university) |
| 3 | AAAC | Affirmative Action Advisory Committee |
| 4 | AAAC | African American Advisory Committee |
| 5 | AAAC | African American Awareness Club |
| 6 | AAAC | All Aluminum Alloy Conductor (power transmission and distribution) |
| 7 | AAAC | Alliance for Augmentative and Alternative Communication (now Helping Autistic Persons Participate Independently through All Communication Techniques) |
| 8 | AAAC | America Alliance Authority and Compliance (US Department of Transportation) |
| 9 | AAAC | American Academy of Ambulatory Care |
| 10 | AAAC | American Association of Automatic Control |
| 11 | AAAC | Anti-Armor Automatic Cannon |
| 12 | AAAC | Asian Association for Algorithms and Computation |
| 13 | AAAC | Astronomy and Astrophysics Advisory Committee (US NSF) |
| 14 | AAAC | Ateneo Alumni Association Canada (Ateneo de Naga University) |
| 15 | AAAC | Australian Aboriginal Affairs Council |
| 16 | AAAC | Australian Association of Agricultural Consultants |
| 17 | AAAC | Authentication, Authorization, Accounting, and Charging |
| 18 | AAAC | Avery Aldridge Activity Center (Flint, Michigan) |
| 19 | AAAC | Avoid At All Costs |