| Abbreviation | Definition |
|---|---|
| NCMN | National Case Management Network |
| NCNE | National Center for Network Engineering |
| NCP | Naming Context Prefix |
| NCP | Netware Core Protocol |
| NCR | Network Control Room |
| NCRT | National Certified ROMA Trainer |
| NCS | Network Connection Sharing |
| NCS | Number of Concurrent Sessions |
| NCW | Network Centric Warfare |
| ND | Network Drive |
| ND | Node Duplication |
| ND | Non-sharable Device |
| NDB | Network Data Boxes |
| NDC | Name Daemon Controller |
| NDC | Network Domain Controller |
| NDCLA | Non-Disruptive Code Load and Activation |
| N-DCS | Narrowband Digital Cross-connect System |
| NDD | Network Design Document |
| NDG | National Data Grid |
| NDG | Next Day Gourmet |