| Abbreviation | Definition |
|---|---|
| APDI | Association of Professional Driving Instructors |
| APDO | Association of Professional Declutterers and Organisers |
| APDP | Association of Parents of Disappeared Persons |
| APDP | Association of Professional Drone Pilots |
| APDR | Association For Protection of Democratic Rights |
| APDR | Association of Program Directors in Radiology |
| APDS | Association of Program Directors in Surgery |
| APDS | Association of Public Diplomacy Scholars |
| APDT | Association of Professional Dog Trainers |
| APDU | Association of Public Data Users |
| APEA | Asia Pacific Evaluation Association |
| APEA | Association for Petroleum and Explosives Administration |
| APECS | Association for Professional Executive Coaching and Supervision |
| APED | Association de parents de l'enfance en difficulté |
| APEGGA | Association of Professional Engineers Geologists and Geophysicists of Alberta |
| APEQ | Association of Physical Educators of Quebec |
| APER | Association for Primary Education and Research |
| APESMA | Association of Professional Engineers Scientists and Managers Australia |
| APETA | Arunachal Pradesh Elementary Teachers Association |
| APF | Association des Paralysés de France |