| Abbreviation | Definition |
|---|---|
| GT | Georgetown |
| GTA | Georgia Technology Authority |
| GTHA | Greater Toronto and Hamilton Area |
| GTRA | Golden Triangle Regional Airport |
| GTRA | Greenwich Township Recreational Association |
| GTS | Government Translation Service |
| GUV | Governor |
| GV | Garden Valley |
| GV | Grand Valley |
| GVN | Govern |
| GVT | Goods Vehicle Test |
| GWB | George Washington Bridge |
| GWC | Genesee Waterways Center |
| GWCA | Greely-Weld County Airport |
| GWCD | GroundWater Conservation District |
| GWCR | George Washington College Republicans |
| GWT | Great Western Trail |
| GWTD | Greater Waterbury Transit District |
| GWWC | Georgia Water Wise Council |
| GY | Greater Yellowstone |