| Abbreviation | Definition |
|---|---|
| NEO | Noncombatant Evacuation Operation |
| NEOCC | Noncombatant Evacuation Operation Coordination Center |
| NEOCC | Non-combatant Evacuation Operation Coordination Center |
| NEP | National ELINT (ELectronic INTelligence) Plan |
| NEP | National ELINT Plan |
| NEPIA | NIOS Education Project for Indian Army |
| NEREP | Nuclear Execution and Reporting Plan |
| NERK | Calling all Navy vessels |
| NES | Narrative Evaluation System |
| NES | National Exploitation System |
| NES | Naval Engineering Section |
| NES | Navy Enlisted System |
| NES | Network Encryption System |
| NES | No Early Secure |
| NESC | Naval Electronics Systems Command (non-standard) |
| NESDIS | National Environmental Satellite, Data and Information Service (DOC) |
| NESEC | Naval Electronic Systems Engineering Center |
| NEST | Nuclear Emergency Support Team |
| NET | New Equipment Training |
| NET | Not Earlier Than |