| Abbreviation | Definition |
|---|---|
| APAF | Association of Producers of Animated Film |
| APAI | Asphalt Paving Association of Iowa |
| APAL | Association of People Affected by Leprosy |
| APAM | Asphalt Pavement Association of Michigan |
| APAMO | Association of Protected Areas Management Organizations |
| APAO | Association of Physician Assistants in Oncology |
| APAP | Association of Physician Assistants In Psychiatry |
| APAQ | Australian Paramedic Association Queensland |
| APAQ | Australian Paramedics Association Queensland |
| APAR | Association Prévention Autisme Recherche |
| APAREM | Asia Pacific Association for Research on Eye Movements |
| APARY | Association des Personnes Aphasiques du Richelieu Yamaska |
| APARY | Association des Personnes Aphasiques Richelieu Yamaska |
| APAS | Agricultural Producers Association of Saskatchewan |
| APAS | Association of Public Authority Surveyors |
| APASL | Asian Pacific Association for the Study of the Liver |
| APAT | Amateur Poker Association & Tour |
| APAU | Association of Pan African Unity |
| APBA | Association of Professional Behavior Analysts |
| APBD | Association of Professional Brochure Distributors |