| Abbreviation | Definition |
|---|---|
| OYA | Outstanding Young Alumni |
| PAA | Purdue Alumni Association |
| PAAC | Pioneer Alumni Archery Club |
| PAAM | Persatuan Alumni AOTS Malaysia |
| PAAQ | PSMOC Alumni Association Qatar |
| PAAR | Placement Alumni Affiliates and Returners |
| PACM | Pyles Alumni Committee Members |
| PADU | Persatuan Alumni Doktor USM |
| PAG | Pekan Alumni Geologi |
| PARFI | PanIIT Alumni Reach for India |
| PAUM | Persatuan Alumni Universiti Malaya |
| PBAA | Phillips Bricks Alumni Association |
| PBAA | Phillips/Bricks Alumni Association |
| PBAA | Pitt Bradford Alumni Association |
| PBAB | Pro Bono Alumni Board |
| PDK | Phi Delta Kappa |
| PGAA | Pitt Greensburg Alumni Association |
| PHAA | Public Health Alumni Association |
| PHSAA | Palestine High School Alumni Association (Palestine, TX) |
| PHSAA | Peabody High School Alumni Association (Trenton, TN) |