| Abbreviation | Definition |
|---|---|
| AABS | Association for the Advancement of Baltic Studies |
| AABST | American Association of Brief Strategic Therapists |
| AABST | American Association of Brief & Strategic Therapists |
| AAC | Argentine Association of Surgery |
| AAC | Asociacin Argentina de Ciruga |
| AAC | Asociación Argentina de Cirugía |
| AACA | American Association of Clinical Anatomists |
| AACB | Australasian Association of Clinical Biochemists |
| AACC | American Automatic Control Council |
| AACEI | Association for the Advancement of Cost Engineering International |
| AACOM | American Association of Colleges of Osteopathic Medicine |
| AACS | Afsaneh Art and Culture Society |
| AACS | Argentine Association of Soil Science |
| AACS | Asociacin Argentina de la Ciencia del Suelo |
| AACS | Asociación Argentina de la Ciencia del Suelo |
| AACSB | AACSB International - The Association To Advance Collegiate Schools of Business |
| AACTE | American Association of Colleges for Teacher Education |
| AADA | Argentine Assocation of Agrometeorology |
| AADA | Asociacin Argentina de Agrometeorologa |
| AADA | Asociación Argentina de Agrometeorología |