| 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 |