| Abbreviation | Definition |
|---|---|
| AAHS | American Association for Hand Surgery |
| AAHS | American Aviation Historical Society |
| AAHS | Athens Area Humane Society |
| AAI | Argentine Association of Inventors |
| AAI | Asociacin Argentina de Inventores |
| AAI | Asociacin Internacional de Actuarios |
| AAI | Asociación Argentina de Inventores |
| AAI | Asociación Internacional de Actuarios |
| AAI | Association Actuarielle Internationale |
| AAI | International Actuarial Association |
| AAI | Internationale Aktuarvereinigung |
| AAIC | Association for the Advancement of Industrial Crops |
| AAIE | Association of Applied Insect Ecologists |
| AAIE | Association of Applied IPM Ecologists |
| AAIR | Asociacia pentru Automatizri _i Instrumentacie din România |
| AAIR | Asociaia pentru Automatizri i Instrumentaie din Romnia |
| AAIR | Asociatia pentru Automatizari si Instrumentatie din România |
| AAIR | Control & Instrumentation Association of Romania |
| AAIS | Alto Artificial Intelligence Society |
| AAL | Academia Argentina de Letras |