| AACA | Army Air Corps Association | In English | → Associations |
| ABMCP | Airborne Military Command Post | In English | → Aeronautics, aircraft |
| ANC | Air Force-Navy-Civil | In English | → 358 |
| AND | Air Force-Navy (Aeronautical) Design | In English | → 358 → Aeronautics, aircraft |
| CNC | Conseil National de la Communication | In French | → Organizations and associations |
| DN | Department of the Navy | In English | |
| FNFL | Forces Navales Françaises Libres | In French | → History |
| IACO | International Aviation COnsulting | In French | → Aeronautics, aircraft |
| JAN | Joint Army-Navy | In English | → 355 |
| MOC | Marine Operation Center | In English | → Public administration, government |
| NCG | Nordic Consulting Group | In English | |
| NNOA | (The) National Naval Officers Association (www.nnoa.org) | In English | → Associations |
| NOA | Naval Officer's Associations | In English | → Associations |
| NOAC | Naval Officers' Association of Canada (www.noac-national.ca) | In English | → Associations |
| NPT | Navy Pointer and Tracker | In English | → Military engineering |
| NRL | Naval Research Laboratory (www.nrl.navy.mil) | In English | → Research institutes |
| NTDS | Naval Tactical Data System | In English | → Computer science |
| RAN | Royal Australian Navy | In English | |
| RGC | Richard Glynn Consultants | In English | → 3591 |
| USMC | United States Marine Corps | In English | |
| USN | United States Navy | In English | |
| USNS | United States Navy Ship | In English | → 6295 |