| Abbreviation | Definition |
|---|---|
| NADK | National Army of Democratic Kampuchea |
| NAE | Navy Acquisition Executive |
| NAEC-ENG | Naval Air Engineering Center - Engineering |
| NAEW | NATO Airborne Early Warning (System) |
| NAF | Nato Architecture Framework |
| NAF | Naval Air Facility |
| NAF | Nigerian Air force |
| NAF | Non-Appropriated Fund |
| NAF | Nonappropriated Funds |
| NAF | Non-Appropriated Funds |
| NAF | Numbered Air Force |
| NAFAG | North Atlantic Treaty Organization (NATO) Air Force Armaments Group |
| NAFFI | Navy, Army and Air Force Institutes (British) |
| NAFFS | New Airborne Fire Fighting System |
| NAFI | Naval Avionics Facility Indianapolis |
| NAFIN | Netherlands Armed Forces Integrated Network |
| NAFISS | Non-Appropriated Funds Information Standard System |
| NAHEMA | NATO HElicopter Management Agency |
| NAI | Named Area of Interest |
| NAI | No Additional Information |