| Abbreviation | Definition |
|---|---|
| GGDT | Godwin Glacier Dogsled Tours |
| GGTT | Golden Gate Tours Travel |
| GHASA | Guest House Association of South Africa |
| GHC | General Hotel Corporation |
| GHETTO | Greater Houston Educational Travel and Tourism Organization |
| GHN | Global Hotel Network |
| GHT | Global Health Travel |
| GHT | Guided Highli Tours |
| GHTA | Georgia Hospitality Travel Association |
| GHTF | Global Healthcare Travel Forum |
| GITB | Great Indian Travel Bazaar |
| GITH | Global Institute Of Tourism And Hospitality |
| GLH | Grand Luxe Hotel |
| GLOF | Glacial Lake Outburst Flood |
| GLONO | Global Nomad |
| GLT | Girls LOVE Travel |
| GMDP | Grands Moulins De Paris |
| GMET | Gifts Meals Entertainment Travel |
| GMTA | Gary Marsden Travel Awards |
| GMTT | Green Meadows Travel and Tourism |