FNW
| Acronym | Definition |
|---|---|
| FNW | First North Western (1997-2004; England, UK) |
| FNW | Far North Wrestling (Pittsburgh, PA) |
| FNW | Falcon Northwest (computer manufacturer) |
| FNW | Fédération des Nationalistes Wallons (French: Federation of Nationalist Walloons; Belgium) |
| FNW | Femoral Neck Width |
| FNW | Frisco Neighborhood Watch (Frisco, TX) |
| FNW | Future of Nuclear Weapons |