| Acronym | Definition |
|---|
| AAPA | American Academy of Physician Assistants |
| AAPA | American Association of Port Authorities |
| AAPA | American Association of Physical Anthropologists |
| AAPA | American Association of Public Accountants (now American Institute of Certified Public Accountants) |
| AAPA | Asian American Psychological Association |
| AAPA | American Association of Pathologists' Assistants |
| AAPA | Australian Asphalt Pavement Association (est. 1969; Australia) |
| AAPA | American Art Pottery Association |
| AAPA | Aboriginal Areas Protection Authority (statutory authority, Northern Territory of Australia, for Aboriginal sacred site) |
| AAPA | American Amateur Press Association |
| AAPA | Association of Authorised Public Accountants (UK) |
| AAPA | American Association of Professional Apiculturists (Falcon Heights, MN) |
| AAPA | American Association of Psychiatric Administrators |
| AAPA | Associate, Annuity Products and Administration (Life Office Management Association designation) |
| AAPA | Association of Asian Pacific Airlines |
| AAPA | Acetoacet-P-Anisidide (pigment) |
| AAPA | All African Pool Association |
| AAPA | Alert Aircraft Parking Area |
| AAPA | Arizona Aquifer Protection Association |
| AAPA | Annals of the American Psychotherapy Association |
| AAPA | Applicant's Admitted Prior Art (patents) |
