| Acronym | Definition |
|---|
| EFSR➣Etherfast Router |
| EFSR➣Emergency Food Security Reserve (various organizations) |
| EFSR➣Évaluation Formation Sécurité Routière (French driving instruction) |
| EFSR➣Economic and Fiscal Strategy Report |
| EFSR➣École de Formation a la Sécurité Routière (French: School Road Safety Education) |
| EFSR➣Early Suppression Fast Response (fire sprinkler) |
| EFSR➣Electronic Field Service Record |
| EFSR➣East Fork Salmon River (Idaho) |
| EFSR➣European Financial Services Roundtable (Brussels, Belgium) |
| EFSR➣Encrypting File System Remote |