| Acronym | Definition |
|---|
| GSIF➣Giga Sampler Interchange Format |
| GSIF➣Good Shepherd International Fellowship (est. 1975) |
| GSIF➣Global Science & Innovation Forum |
| GSIF➣Georgian Social Investment Fund (Tbilisi, Georgia) |
| GSIF➣Ground Station Interface Facility (EOS ground station high rate processing facility) |
| GSIF➣Generalized Stress Intensity Factor |
| GSIF➣Giga-Sampler-Inter-Face (TASCAM) |