| Abbreviation | Definition |
|---|---|
| GLAM | Girls Leadership and Marketing |
| GMC | Game Marketing Conference |
| GMCI | Gilmore Marketing Concepts Inc |
| GMDI | Global Marketing Data Index |
| GMG | Georgia Marketing Group |
| GMG | Gorilla Marketing Group |
| GMG | Gulf Marketing Group |
| GMI | Global Market Intelligence |
| GMIG | Global Marketing and Investment Group |
| GMIM | General Manager: International Marketing |
| GMM | Growth Management Marketing |
| GMR | Gulf Marketing Review |
| GMS | Game Marketing Summit |
| GNP | Global New Products |
| GOMD | Glass And Optical Materials Division |
| GOMP | GutsGo Online Marketing Program |
| GPBTO | General Purpose Barbed Tape Obstacle |
| GRM | Guard Rail Marketing |
| GRM | Guest Relations Marketing |
| GRMA | Global Retail Marketing Association |