| Abbreviation | Definition |
|---|---|
| PC | Player Character (in RPGs) |
| PCA | Pony Club Association |
| PCKA | Pierce County Kitefliers Association |
| PCO | Predefined Composition Object |
| PCS | Professional Clubmakers Society |
| PEC | Personal Embroidery Card |
| PEMC | Professional & Executive Motorcyclists' Club |
| PERF | Number of perforations on a stamp |
| PERF | Perforation |
| PF | Premium Fine |
| PFCP | Pelagic Fisheries Conservation Program |
| PFGA | Peterborough Fish and Game Association |
| PFGC | Pemigewasset Fish and Game Club |
| PFJ | Prospecting For Junk |
| PGX | Professional Grading eXperts |
| PHC | Parrot Head Club |
| PHCS | Portuguese Historical Cultural Society |
| PHD | Proper Husband Discovery |
| PHWG | Prague Historical Wargaming Group |
| PJDM | Pete James Denzel Music |