SFIO
| Acronym | Definition |
|---|---|
| SFIO | Striped File Input Output |
| SFIO | Specjalistyczny Fundusz Inwestycyjny Otwarty (Polish: Specialized Investment Open Fund) |
| SFIO | Serious Fraud Investigation Office (India) |
| SFIO | Section Française de l'Internationale Ouvrière (French Socialist Party) |
| SFIO | Student Funding and International Office (Oxford University; UK) |