| Abbreviation | Definition |
|---|---|
| NOVA | Nasty Old Vikings Association |
| NP | No Phosphorus |
| NP | Non Portable |
| NP | Nonproliferation |
| NPA | New Peoples Army |
| NPAA | National Patriot Activist Army |
| NPAM | Non-Permanent Active Militia |
| NPB | Neutral Particle Beam |
| NPC | Nonproliferation Center |
| NPC | Normalized Projection Coordinates |
| NPCC | National Provisioning Control Center |
| NPCC | Navy Parts Control Center |
| NPD | North Pacific Division |
| NPDA | Network Program Determination Application |
| NPDI | Non-Proliferation and Disarmament Initiative |
| NPE | Networking Planning and Engineering |
| NPE | Nuclear Planning and Execution |
| NPES | Nuclear Planning and Execution System |
| NPG | Naval Post Graduate School |
| NPG | Network Participation Group |