| Acronym | Definition |
|---|
| AAIA | Advances in Artificial Intelligence and Applications (symposium) |
| AAIA | Automotive Aftermarket Industry Association (consolidation of the Automotive Parts & Accessories Association and the Automotive Service Industry Association) |
| AAIA | Association on American Indian Affairs (since 1923; Sisseton, South Dakota) |
| AAIA | Airport and Airway Improvement Act |
| AAIA | American Association for International Aging (Washington, DC) |
| AAIA | Associate Member, Association of International Accountants (UK) |
| AAIA | American Association of Independent Architects |
| AAIA | Association of Airport Internal Auditors, Inc. (Salt Lake City, UT) |