| Abbreviation | Definition |
|---|---|
| APMS | Alliance for Patient Medication Safety |
| APN | Alliance Partner Network |
| APNA | Alliance of Premier Nanny Agencies |
| APNA | Alliance of Professional Nanny Agencies |
| APNI | Alliance Party of Northern Ireland |
| APPA | American Pharmacy Purchasing Alliance |
| APPT | Alliance of Psychoanalytic Psychotherapy Trainings |
| APRA | American Popular Revolutionary Alliance |
| APRC | Alliance for Patriotic Reorientation and Construction |
| APRCP | Alliance for Patriotic Reorientation and Construction Party |
| APUA | Alliance for the Prudent Use of Antibiotics |
| APV | Alliance for a Progressive Virginia |
| APV | Alliance for Progressive Values |
| APW | Alliance of Professional Women |
| APW | Alliance Parts Warehouse |
| AQC | Alliance for Quality Construction |
| AQUE | Alliance for Quality Urban Education |
| ARA | Alliance for Retired Americans |
| ARA | Arkansas Research Alliance |
| ARAC | Aleb Resource And Alliance Center |