| Abbreviation | Definition |
|---|---|
| APIOS | Asia Pacific Industrial Organisation Society |
| APMAS | Andhra Pradesh Mahila Abhivruddhi Society |
| APMEP | Association des Professeurs de Mathématiques de l' Enseignement Public |
| APMEP | Association des Professeurs de Mathmatiques de l' Enseignement Public |
| APMEP | Association of Professors of Mathematics in Public Education |
| APOS | Alberta Professional Outfitters Society |
| APOS | American Psycho Oncology Society |
| APOS | Andhra Pradesh Ophthalmic Society |
| APOS | Asian Pacific Orthodontic Society |
| APOSS | Andhra Pradesh Open School Society |
| APP | Asociacin Panamea de Psiclog@s |
| APP | Asociacin Panamea de Psiclogos |
| APP | Asociación Panameña de Psicólog@s |
| APP | Asociación Panameña de Psicólogos |
| APP | Panamanian Association of Psychologists |
| APPAM | Association for Public Policy Analysis and Management |
| APPC | Associação Portuguesa de Projectistas e Consultores |
| APPC | Associao Portuguesa de Projectistas e Consultores |
| APPC | Portuguese Association of Engineering and Management Consultants |
| APPE | Association for Practical and Professional Ethics |