| Abbreviation | Definition |
|---|---|
| GSIC | Gold Standard Investment Club |
| GSOC | Gold Star Owners Club |
| GSOC | Greensboro Ski and Outing Club |
| GSOF | Georgia Society Of Ferroequinologists |
| GSOW | Great Spin Out West |
| GSSF | Glock Sport Shooting Foundation |
| GTAPA | Greater Toronto Area Philatelic Alliance |
| GTR | Girls That Ride |
| GTR | Great Tharnio Rackum |
| GTRD | GT Ride and Drive |
| GTRW | Greater Toronto Raptor Watch |
| GWCB | Georgians for World Class Beer |
| GWCU | Golden West Caravan Unit |
| GWCZ | GelandeWagen Club Zurich |
| GWF | Game with Fame |
| GWFC | Gulf Wide Fishing Club |
| GWRRA | Gold Wing Road Riders Association |
| GWS | Girl Watcher Society |
| GWS | Glue Won't Set |
| GWT | Guys With Ties |