| Abbreviation | Definition |
|---|---|
| GMC | Geovic Mining Corp |
| GMC | Global Machinery Company |
| GMC | Grabowski Motor Corporation |
| GMC | Grabowsky Motor Corporation |
| GMC | Guntur Municipal Corporation |
| GMCG | Global Markets Consulting Group |
| GMCI | Gilmore Marketing Concepts Inc |
| GMCI | Global Media Consultants Inc |
| GMCI | Golden Manufacturing Company Incorporated |
| GMCI | Green Mechanical Construction Inc |
| GMD | Games Music Division |
| GMD | Gerhard Mueller Dietlikon |
| GMDB | Guaranteed Minimum Death Benefits |
| GMDC | Gujarat Mineral Development Corporation |
| GMDP | Gabor Mester De Parajd |
| GME | General Motors Europe |
| GME | Gold Mountain Entertainment |
| GME | Griswold Machine Engineering |
| GMECO | Guangzhou Aircraft Maintenance Engineering Corporation |
| GMEI | Graduate Medical Education Inc |