| Abbreviation | Definition |
|---|---|
| PNE | Project North East |
| PNJ | Preservation New Jersey |
| PNP | Private Nonprofit |
| PNS | Perry Nursery School |
| POA | Partners Of the Americas |
| POA | Ponies Of America |
| POC | Parade Of Chapters |
| POCC | The Pentecostals of Cooper City |
| POD | Parents Of Diabetics |
| POD | Professionals Opening Doors |
| POF | Prosthetics Outreach Foundation |
| POH | Project Open Hearts |
| POINT | Paraplegics On Independent Nature Trips |
| POLF | Points Of Light Foundation |
| POMBA | Parents Of Multiple Births Association |
| POMC | Parents Of Murdered Children |
| PONO | Promoting Outstanding Nonprofit Organizations |
| PORCH | Parents Organizing Resources For Children's Health |
| POSI | Peace Operations Summer Institute |
| POT | Parents Of Teens |