| Acronym | Definition |
|---|
| GRSA➣Great Sand Dunes National Park and Preserve (US National Park Service) |
| GRSA➣Greyhound Racing South Australia (est. 1972; Australia) |
| GRSA➣General Rate Schedule Adjustment (Colorado) |
| GRSA➣General Railway Signal Company de Argentina |
| GRSA➣Greater Richmond Sailing Association (est. 1975; Richmond, VA) |
| GRSA➣Galway Research Staff Association (National University of Ireland) |
| GRSA➣General Radioquimica SA |