| Acronym | Definition |
|---|
| FNSA | Fédération Nationale du Secteur Agricole (French: National Agricultural Federation Sector; Morocco) |
| FNSA | Fonds National des Solidarités Actives (French: National Fund for Active Solidarity) |
| FNSA | Fédération Nationale des Sourds d'Algérie (National Federation of the Deaf Algeria) |
| FNSA | First Nations Schools Association (British Columbia, Canada) |
| FNSA | Florida Nursing Students Association (Orlando, FL) |
| FNSA | Fédération Nationale des Syndicats de l´Assainissement (France) |
| FNSA | Feminism and Nonviolence Studies Association |
| FNSA | French National Safety Area |