| Abbreviation | Definition |
|---|---|
| NEADC | NorthEastern Air Defense Command |
| NEAT | Naval Embarked Advisory Team |
| NEAT | Near Earth Asteroid Tracking |
| NEC | National Event Consortium |
| NEC | Navy Enlisted Classification |
| NEC | Net Explosive Content |
| NEC | Network Enterprise Center |
| NEC | Never Ending Changes |
| NECC | Navy Expeditionary Combat Command |
| NECP | Non-Engineering Change Proposal |
| NED | Non-Explosive Device |
| NED | Nuke Encryption Device |
| NEDU | Naval Experimental Division Undersea |
| NEGDF | Naval Emergency Ground Defense Force |
| NEISO | Non-Material Individual Enhancement of SOF (Special Operations Forces) Operators |
| NEISO | Non-Material Individual Enhancement of SOF Operators |
| NEJ | Naval Engineers Journal |
| NELF | Near East Land Forces |
| NEMT | National Emergency Management Team |
| NEO | Near Earth Object |