| Acronym | Definition |
|---|
| SIFO➣Small Intestinal Fungal Overgrowth |
| SIFO➣Svenska Institutet för Opinionsundersökningar |
| SIFO➣Slow In, Fast Out (auto racing) |
| SIFO➣Société des Infirmières Francophones en Ophtalmologie |
| SIFO➣Systems Integration and Fielding Office |
| SIFO➣Second In, First Out (accounting) |
| SIFO➣Società Italiana di Famacia Ospedaliera |