| Abbreviation | Definition |
|---|---|
| AAP | Association of American Publishers |
| AAPA | Alliance for Asian Pacific Administrators |
| AAPA | American Academy of Physician Assistants |
| AAPA | American Association of Pathologists Assistants |
| AAPA | American Association of Physical Anthropologists |
| AAPA | Asian American Parent Association |
| AAPCC | American Association of Psychiatric Clinics for Children |
| AAPD | American Association of People with Disabilities |
| AAPD | Asian Academy of Preventive Dentistry |
| AAPG | Accreditation Auditing Practices Group |
| AAPHP | American Association of Public Health Physicians |
| AAPL | American Academy of Psychiatry and the Law |
| AAPL | American Association of Professional Landmen |
| AAPL | Asian Agricultural Products, LTD. |
| AAPM | American Academy of Pain Medicine |
| AAPM | American Association of Physicists in Medicine |
| AAPM&R | American Academy of Physical Medicine and Rehabilitation |
| AAPMR | American Academy of Physical Medicine and Rehabilitation |
| AAPOR | American Association for Public Opinion Research |
| AAPP | American Academy of Pharmaceutical Physicians |