| Abbreviation | Definition |
|---|---|
| PALU | Pan African Lawyers Union |
| PAN | Political Action Network |
| PAPU | Pan African Postal Union |
| PAPU | Pan African Psychology Union |
| PASU | Pilipino American Student Union |
| PATH | Positive Alternatives to Homosexuality |
| PATU | Pan African Telecommunication Union |
| PATU | Pan American Taekwondo Union |
| PAUL | Philippines Australia Union Link |
| PAWUSA | Public and Allied Workers Union of South Africa |
| PBCU | Point Breeze Credit Union |
| PCCU | Park City Credit Union |
| PCCU | Parker Community Credit Union |
| PCCU | Pendle Community Credit Union |
| PCCU | Pennine Community Credit Union |
| PCCU | Peoples Community Credit Union |
| PCCU | Perfect Circle Credit Union |
| PCCU | Prairie Centre Credit Union |
| PCCU | Premier Community Credit Union |
| PCEC | Platte Clay Electric Cooperative |