FSIR
| Acronym | Definition |
|---|---|
| FSIR | Française de Sécurité et d'Intervention Rapide (French security company) |
| FSIR | Fonds Spécial d'Investissement Routier (French: Special Road Investment Fund) |
| FSIR | Florida School Indicators Report |
| FSIR | Flight Safety Investigation Report (Canada) |
| FSIR | Fair and Secure Immigration Reform (proposed law) |
| FSIR | Familial Standardized Incidence Ratio (disease risk) |
| FSIR | Formula Student INSA de Rennes |