FNFF
| Acronym | Definition |
|---|---|
| FNFF | Fundación Nacional Francisco Franco (Spanish) |
| FNFF | Fédération Nationale des Fleuristes de France (French: National Federation of French Florists) |
| FNFF | Fédération Nationale du Folklore Français (French: National Federation of French Folklore) |
| FNFF | Friday Night Frag Fest (gaming) |
| FNFF | Fier Nitrogen Fertilizer Factory |