| Abbreviation | Definition |
|---|---|
| NICS | Novell Internet Caching System |
| NID | Network Interface Device |
| NID | Networked Intelligent Device |
| NIM | Network Information Management |
| NIM | Network Information Model |
| NIM | Network Installation Management |
| NIM | Not- Inside Message |
| NIN | Non IP Networking |
| NIP | Network Independent Protocol |
| NIPS | Network Intrusion Protection System |
| NIPS | Neural Information Processing System |
| NIPSA | Network for Improved Policing in South Asia |
| NIR | Non Intrusive Reservation |
| NIRA | New Internet Routing Architecture |
| NIT | Network Information Table |
| NITS | Network Independent Transport Service |
| NITS | Network Integrated Transmission Service |
| NIX | Norwegian Internet eXchange |
| NJPPSA | New Jersey Professional Process Servers Association |
| NKF | Network Kanji Filter |