| Abbreviation | Definition |
|---|---|
| GLWY | Galloway |
| GM | eneral Motors |
| GM | General Mills |
| GM | General Motors |
| GM | Generally Mediocre |
| GM | GreenMuze.com |
| GMA | Gruppo italiano di Meccanica Applicata |
| GMAC | General Motors Acceptance Corp |
| GMAI | Gladstone Multicultural Association Inc |
| GMAI | Greg Manning Auctions Inc |
| GMAS | Georges Marine And Sport |
| GMB | General Municipal Boilermakers |
| GMB | Generator Mother Board |
| GmbH | Gesellschaft mit beschrankter Haftung |
| GMC | Garba Music Corporation |
| GMC | Garbage Manufacturing Corporation |
| GMC | general motor company |
| GMC | General Motors Company |
| GMC | General Motors Corporation |
| GMC | Georgia Muusic Company |