| Abbreviation | Definition |
|---|---|
| NFWA | Naval Mine Warfare Association |
| NFWF | National Fish and Wildlife Foundation |
| NGA | National Governors' Association |
| NGAC | National General Awareness Campaign |
| NGC | New Global Citizens |
| NGCC | National Guard Cadet Corps |
| NGDF | National Graves' Disease Foundation |
| NGEN | Next Generation Manufacturing Canada |
| NGF | National Gaucher Foundation |
| NGF | National Greyhound Foundation |
| NGFI | National Greyhound Foundation, Inc. |
| NGGO | Non Governmental Governing Organization |
| NGHP | Northwest Georgia Healthcare Partnership |
| NGL | No Greater Love |
| NGO | Non Governmental Organization |
| NGO | Non-Governmental Organization |
| NGRC | National Geographic Research Center |
| NGS | National Geographic Society |
| NGYR | Narrow Gate Youth Ranch |
| NHASF | National Helicopter Association Scholarship Fund |