| Acronym | Definition |
|---|
| SIFS➣Short Inter Frame Space |
| SIFS➣Short Inter-Frame Space |
| SIFS➣Southern Illinois Flute Society (est. 1996) |
| SIFS➣Standard Industrial Fund System |
| SIFS➣Supply Interface System |
| SIFS➣Southern Institute of Forensic Science (est. 1988; Louisiana and Colorado) |
| SIFS➣Single Integral Finite Strain |