| Abbreviation | Definition |
|---|---|
| GOG | Gospel of Grace |
| GPEH | Grace Point at Eagle Heights |
| GPN | Grace Potter and |
| GPN | Grace Potter and the Nocturnals |
| GPR | Grand Prix Racewear |
| GPRO | Grand Prix Racing Online |
| GR | Gazoo Racing |
| GR | Great Racer |
| GRA | Gravity Racers Association |
| GRA | Greyhound Racers Association |
| GRASP | Genetic Racing Ability Stud Performance |
| GRBR | Great Reno Balloon Race |
| GRD | Genesis Racing Development |
| GRDC | Ginetta Racing Drivers Club |
| GRIT | Grace Righteousness Intensity and Toughness |
| GRITS | Gals Racing In The South |
| GRM | Grapevine Racing Machine |
| GRM | Grapevine Racing Motors |
| GRRC | Goodwood Road Racing Club |
| GRSS | Gazoo Racing Super Sport |