| Abbreviation | Definition |
|---|---|
| AAOT | Argentine Association of Orthopaedics and Traumatology |
| AAOT | Asociacin Argentina de Ortopedia y Traumatologa |
| AAP | Academy of American Poets |
| AAPC | Association des Architectes Paysagistes du Canada |
| AAPC | Canadian Society of Landscape Architects |
| AAPM&R | American Academy of Physical Medicine & Rehabilitation |
| AAPOS | American Association for Pediatric Ophthalmology and Strabismus |
| AAPR | Österreichische Arbeitsgemeinschaft für Mustererkennung |
| AAPR | sterreichische Arbeitsgemeinschaft fr Mustererkennung |
| AAPS | African Association of Political Science |
| AAPS | Association Africaine de Sciences Politiques |
| AAPT | American Association of Philosophy Teachers |
| AAQ | Association des Archéologues du Québec |
| AAQ | Association des Archologues du Qubec |
| AAQ | Association of Archaeologists of Quebec |
| AAR | Ancient and Accepted Rite |
| AARHMS | American Academy of Research Historians of Medieval Spain |
| AARS | American Acne and Rosacea Society |
| AARS | Ancient and Accepted Scottish Rite |
| AAS | African Academy of Sciences |