| Abbreviation | Definition |
|---|---|
| PND | Position Navigation Device |
| PNF | Part Not Found |
| PNG | Proportional Navigational Guidance |
| PNHSD | Platforms for NHS Defence |
| PNID | Precedence Network In Dialing |
| PNL | Panel |
| PNL | Prescribed Nuclear Load |
| PNMC | Packet Network Management Center |
| PNMC | Portsmouth Naval Medical Center |
| PNNI | Private Network To Network Interface |
| PNOK | Primary Next Of Kin |
| PNP | Peace aNd Protection |
| PNS | Pakistan Naval Services |
| PNT | Positioning, Navigation, and Timing |
| PNV | Potential Network Value |
| PNVS | Pilot Night Vision Sensor |
| PNVS | Pilot Night Vision System |
| PNVS | Pilotage Night Vision System |
| PO | Peace Operations |
| PO | Petty Officer |