| Abbreviation | Definition |
|---|---|
| PGA | Poontang Golfers Association |
| PGA | Pro Golfers Association |
| PGA | Professional Golfers Association |
| PGAI | Professional Golfers Association Of India |
| PGC | Pennsylvaina Guild of Craftsmen |
| PGDJMC | Post Graduate Diploma in Journalism and Mass Communication |
| PGMEA | Pakistan Gloves Manufacturers Exporters Association |
| PGO | Pennsylvania Golf course Owners |
| PHCIB | Plumbing - Heating - Cooling Information Bureau |
| PHLC | Pediatric Hodgkin Lymphoma Consortium |
| PHO(s) | physician-hospital organization(s) |
| PhRMA | Pharmaceutical Research and Manufacturers of America |
| PI | Perlite Institute |
| PIBA | Pacific Industrial and Business Association |
| PIBA | Professional Insurance Brokers Association |
| PICMG | PCI Industrial Computer Manufacturers Group |
| PICRA | Piping Industry Council Rockford Area |
| PICRA | Professional Iranian Canadian Real Estate Association |
| PID | Project Implementation Division |
| PIDS | Pediatric Infectious Diseases Society |