| Abbreviation | Definition |
|---|---|
| GUCC | Griffith University Cricket Club |
| GVTC | Good Vibes Track Club |
| GWCB | Gold Wing Club Berlin |
| GWCC | Greater Washington Ceili Club |
| GWCS | Gold Wing Club Sweden |
| GWFC | Gulf Wide Fishing Club |
| GWSC | Geelong Water Ski Club |
| GWSC | Golden West Swim Club |
| GWSC | Grafham Water Sailing Club |
| GWTC | Glyndwr Welsh Terrier Club |
| GWTC | Greater Whittier Tennis Club |
| GYC | Gaborone Yacht Club |
| GYC | Genesee Yacht Club |
| GYC | Guernsey Yacht Club |
| GYC | Guilford Yacht Club |
| GYC | Gulfport Yacht Club |
| HAAC | Hungarian American Athletic Club |
| HABC | Hightower Athletic Booster Club |
| HABC | Hilltoppers Athletes Booster Club |
| HAC | Hockessin Athletic Club |