| Abbreviation | Definition |
|---|---|
| POPA | Patent Office Professional Association |
| POPA | Pilatus Owners And Pilots Association |
| PORAC | Peace Officers Research Association of California |
| PORT | Passenger Occupant Requirement Terminal |
| PORTRAITPHOTOGRAPHY | Instant Glamour Makeover Photo Studio are professional photographer for corporate photoshoot, family |
| POWA | Pennsylvania Outdoor Writers Association |
| PPA | Pickles People Association |
| PPA | Professional Photographers Association |
| PPA | Professional Photographers of America |
| PPAF | Promotional Products Association Florida |
| PPAP | Planning For Pa Association Progress |
| PPBA | Pan Pacific Business Association |
| PPE | Professional Practice Exam |
| PPFA | Plastic Pipe and Fittings Association |
| PPFA | Professional Picture Framers Association |
| PPIAC | Professional Private Investigators Association of Colorado |
| PPM | Persekutuan Pengakap Malaysia |
| PPSU | Professional Pet Sitters United |
| PPTA | Plasma Protein Therapeutics Association |
| PPW | Professional Photographers of Washington |