FISF
| Acronym | Definition |
|---|---|
| FISF | Fédération Internationale de Scrabble Francophone (French: International Federation of Francophone Scrabble) |
| FISF | Fédération des Internationaux du Sport Français (French: International Federation of French Sport) |
| FISF | Flinders Island Spotted Fever (infection) |
| FISF | Floristic Inventory of South Florida (est. 1990; Institute for Regional Conservation; Miami, FL) |
| FISF | Fédération Internationale des Sociétés de Fertilité (French) |
| FISF | Federación Internacional de las Sociedades de Fertilidad |