| 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 |