SISF
| Acronym | Definition |
|---|---|
| SISF | Schroder International Selection Fund |
| SISF | Sato International Scholarship Foundation (Japan) |
| SISF | Self-Insurers Security Fund (various locations) |
| SISF | Soroptimist International of San Francisco (California) |
| SISF | Superlattice Intrinsic Stacking Fault |
| SISF | Senri International School Foundation, Inc. (Princeton, NJ) |
| SISF | Soluble Immune Suppressor Factor (cancer) |