SIFI
| Acronym | Definition |
|---|---|
| SIFI | Science Fiction (less common than SciFi) |
| SIFI | Seminar in Field Instruction (education; various locations) |
| SIFI | School Identified for Improvement (Wisconsin) |
| SIFI | Sugar Industry Foundation, Inc. (Philippines) |
| SIFI | Systemically Important Financial Institution |
| SIFI | Seismic Induced Frame Instability |
| SIFI | Sistema Integrato Formazione Istruzione (Italian: Integrated System Training Education; Milan, Italy) |