| Meaning | Category |
| Nashville Public Television | Community->Media |
| National Park Trust | Community->Non-Profit Organizations |
| National Pdes Testbed | Computing->Networking |
| National Pipe Tapered | Miscellaneous->Plastics |
| National Police Training | Governmental->Police |
| National Push Tournament | Community->Sports |
| Nebraska Public Television | Community->Media |
| Neighborhood Police Team | Community->Law |
| Neighbourhood Policing Team | Governmental->Police |
| Network Planning Terminal | Governmental->Military |
| Network Point Type | Computing->Networking |
| Newport, Rhode Island USA | Regional->Airport Codes |
| Non Punch Through | Academic & Science->Electronics |
| Non- Proliferation Treaty | Governmental->Military |
| Normal Play Time | Community->Media |
| Normal pressure and temperature | Medical->Physiology |
| Now Please Try | Internet->Chat |
| Nuclear Non-Proliferation Treaty | Business->International Business |
| Nuclear Power Training | Governmental->Military |
| Nuveen Premium Income Municipal Fund 4 | Business->NYSE Symbols |
| Portland Terminal RailRoad Company ( Oregon) | Regional->Railroads |
Click here to submit an acronym.
