| Abbreviation | Definition |
|---|---|
| GSW | Geological Society Of Washington |
| GSWC | Genealogical Society of Washtenaw County |
| GSWG | Genomics and Society Working Group |
| GTAV | Geography Teachers' Association of Victoria |
| GUESS | Green Universe Environmental Services Society |
| GUG | Gesellschaft fr UmweltGeowissenschaften |
| GUG | Gesellschaft für UmweltGeowissenschaften |
| GUG | Society for Environmental Geosciences |
| GULS | Georgetown Undergraduate Linguistics Society |
| GUS | Gesellschaft fr Umweltsimulation |
| GUS | Gesellschaft für Umweltsimulation |
| GUS | Society for Environmental Engineering |
| GUTS | Georgia Ultrarunning and Trailrunning Society |
| GV | Geological Union |
| GV | Geologische Vereinigung |
| GWS | George Wright Society |
| GWS | Gesellschaft fr Wirtschaft und Sozial-Kybernetik |
| GWS | Gesellschaft für Wirtschaft und Sozial-Kybernetik |
| GWS | Society for Economics and Social Cybernetics |
| HAA | Hungarian Astronomical Association |