| Abbreviation | Definition |
|---|---|
| GT | Gran Tourismo |
| GT | Grand Touring |
| GT | Grand Tournament |
| GT | Groomed Trail |
| GTA | Grand Turismo Americano |
| GTB | Gran Turismo Berlinetta |
| GTBL | Greater Toronto Baseball League |
| GTC | Game Tool Chest |
| GTC | Global Touring Challenge |
| GTFL | Greater Toronto Football League |
| GTG | Gran Turismo Garage |
| GTHL | Greater Toronto Hockey League |
| GTI | Grand Tourer Injection |
| GTI | Grand Touring Injection |
| GTLF | Global Tennis Legacy Foundation |
| GTM | Grand Touring Mini |
| GTP | Good Team Play |
| GTP | Grand Touring Performance |
| GTR | Game Time Rant |
| GTR | Gran Tourismo Racing |