| Abbreviation | Definition |
|---|---|
| NCS | Node Center Switch |
| NCS | Node Center Switch (MSE) |
| NCS(D) | Downsize Net Control Station |
| NCSC | National Computer Security Center |
| NCSE | National Intelligence Support Team (NIST) Communications Support Element |
| NCS-E(D) | Network Control Station-EPLRS (downsize) |
| NCT | National Center for Toxicogenomics |
| NCT | National Commission on Terrorism |
| NCT | Network Control Terminal |
| NCTAMS | Naval Computer and Telecommunications Area Master Station |
| NCTC | National Counterterrorism Center |
| NCTC | Naval Computer and Telecommunications Command |
| NCTC | North East Counterdrug Training Center |
| NCTR | Non-Cooperative Target Recognition |
| NCTS | Naval Computer and Telecommunications Station |
| NCTS | Naval Computer and Telecommunications Stations |
| NCU | Any Coast Guard Unit |
| NCW | Naval Coastal Warfare |
| NCW | Network Centric Warfare |
| NCWS | Naval Coastal Warfare Squadron |