| Abbreviation | Definition |
|---|---|
| NFT | Network File Transfer |
| NG | Number of Groups |
| NGI | Next Generation Internet |
| NGN | National Guardianship Network |
| NGNBN | Next Generation National Broadband Network |
| NGNBN | Next Generation Nationwide Broadband Network |
| NGNP | Next-Generation Network Practice |
| NG-SDH | Next-Generation Synchronous Digital Hierarchy |
| NHAN | New Hampshire Afterschool Network |
| NHTB | Next-Hop Tunnel Binding |
| NI | Node Interface |
| NI | Not-Inside |
| NIA | Network Interface Adapter |
| NIB | National Information Board |
| NIC | Network Initial Configuration |
| NIC | Network Interface Controller |
| NICE | Network Integrated Computing Environment |
| NICO | Network Integration Control Organization |
| NICS | Network Integrated Computing Solution |
| NICs | Network Interface Cards |