| Acronym | Definition |
|---|
| GTG | Got To Go |
| GTG | Get Together |
| GTG | Go-to-Ground (dog competition) |
| GTG | Good To Go |
| GTG | Gray to Gray |
| GTG | Green to Green |
| GTG | Global Technology Group (various locations) |
| GTG | Gas Turbine Generator |
| GTG | Gray to Gray (LCD response timing) |
| GTG | Game Tying Goals (hockey) |
| GTG | Golden Tee Golf (game) |
| GTG | Get the Girl |
| GTG | Green Thumb Gardening (Underhill, VT) |
| GTG | Glory to God (also seen as G2G) |
| GTG | Global Travel Group |
| GTG | Growing to Greatness (various organizations) |
| GTG | Girl to Girl |
| GTG | Global Tone Generation |
| GTG | Groomer to Groomer (magazine) |
| GTG | Good Time Girls |
| GTG | Gaussian-Type Geminal |
| GTG | Graphics to Go |
| GTG | Genuine Tough Guy |
| GTG | Go To Guy/Gal |
| GTG | Growth Type Group (forestry) |
| GTG | GrandTheftGamer |
| GTG | GFCP To GFCP |
| GTG | Goverment to Government |