| Abbreviation | Definition |
|---|---|
| NFO | Naval Flight Officer |
| NFO | No further orders |
| NFO | No Future Outside |
| NFOV | Narrow Field Of View |
| NFQ | Naval Flight Quarters |
| NFR | Non Functional Requirements |
| NFS | Naval Fire Support |
| NFSK | Narrow-Frequency Shift Keying |
| NFTC | NATO Flight Training in Canada |
| NFTR | Nothing Further To Report |
| NFU | Non-Fissile Uranium |
| NFWS | Navy Fighter Weapons School |
| NG | National Guard |
| NG | Next Generation |
| NG | No Good |
| NG | Number of Generators |
| NGARM | New Generation Anti Radiation Missile |
| NGARM | Next Generation Anti Radiation Missile |
| NGB | National Guard Bureau |
| NGB | Next Generation Bomber |