| Abbreviation | Definition |
|---|---|
| AAPP | Australian Association of Pathology Practices |
| AAPR | Austrian Association for Periodontal Research |
| AAPS | American Association of Pharmaceutical Scientists |
| AAPS | American Association of Physician Specialists |
| AAPS | American Association of Plastic Surgeons |
| AAPS | Association of American Physicians and Surgeons |
| AAPS | Association of Applied Paleontological Sciences |
| AAPU | American Association of Pediatric Urology |
| AARB | Allam Al Rafiq Business |
| AARD | American Academy of Restorative Dentistry |
| AARINENA | Association of Agricultural Research Institutions in the Near East and North Africa |
| AAROT | Alberta Association of Registered Occupational Therapists |
| AAS | American Astronomical Society |
| AASA | American Association of School Administrators |
| AASM | Asia Association for Sport Management |
| AASP | American Association of Stratigraphic Palynologists |
| AASP | American Association of Swine Practitioners |
| AASP | Association of Advancement Services Professionals |
| AASPR | Associate of the Association of Staff Physician Recruiters |
| AASRP | American Association of Small Ruminant Practitioners |