| Abbreviation | Definition |
|---|---|
| NT | New Territories (Hong Kong) |
| NWC | New Work Cities |
| OC | Oklahoma City |
| OH | Oak Harbor |
| OTCG | Off The Chain Gang |
| OTNC | Old Town National City |
| OTRC | Othello To Royal City |
| OUA | Ouachita |
| OWHC | Organization of World Heritage Cities |
| PCHE | Port Cities Home Educators |
| PCLDA | Park Cities Learning Disabilities Association |
| PDC | Prairie Du Chien, Wisconsin |
| PH | Prahova |
| PHILADA | Philadelphia |
| PHILLY | Philadelphia (not an acronym) |
| PNC | Palmerston North City |
| PNEY | Pney |
| POBC | Pentecostals of Bossier City |
| POFC | Pentecostals of the Fox Cities |
| PR | Pelican Rapids |