| 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 |