| Acronym | Definition |
|---|
| FISA | Foreign Intelligence Surveillance Act (US government) |
| FISA | Finance and Investment Students' Association (University of Nairobi; Nairobi, Kenya) |
| FISA | Federation Internationale Du Sport Automobile |
| FISA | Fédération Interprofessionnelle du Secteur Avicole (French: Interprofessional Poultry Sector Federation; Morocco) |
| FISA | Federation Internationale des Societes d'Aviron (International Rowing Association) |
| FISA | Finance Industry Standards Association (UK) |
| FISA | Fédération Indépendante des Syndicats Autonomes (French: Independent Federation of Autonomous Trade Unions; Canada) |
| FISA | Federazione Italiana delle Società di Agopuntura (Italian Federation of Acupuncture Societies) |
| FISA | Food Industry Suppliers Association |
| FISA | Federation of Independent School Alumnae |
| FISA | Footwear Institute of South Africa |
| FISA | Forget I Said Anything |
| FISA | Ferris Indian Student Association |
| FISA | Fianakaviana Sambratra |
| FISA | Fixed Income Strategy and Analysis |
| FISA | Fédération Internationale des Sociétés d'Aerophilatelic (French: International Federation of Aerophilatelic Societies) |