FGSL
| Acronym | Definition |
|---|---|
| FGSL | Fallbrook Girls Softball League (Fallbrook, CA) |
| FGSL | Foothill Girls Softball League (Shingle Springs, CA) |
| FGSL | Friends of the Great Salt Lake (Utah) |
| FGSL | Federally Guaranteed Student Loan |
| FGSL | Focal Glomerular Sclerotic Lesions (pathology) |
| FGSL | Friends of Good Spirit Lake (Canada) |