| Abbreviation | Definition |
|---|---|
| GLSV | Great Lakes Symposium on VLSI (Very-Large-Scale Integration) |
| GLVC | Great Lakes Valley Conference |
| GLWC | Great Lakes Worldview Conference |
| GLWE | GNU Linux World Expo |
| GLWF | Great Lakes Writers Festival |
| GMAC | Great Midwest Athletic Conference |
| GMC | Game Marketing Conference |
| GMC | Greater Miami Conference |
| GMHC | Global Missions Health Conference |
| GMIC | Global Mobile Internet Conference |
| GMTS | Global Money Transfer Summit |
| GMW | Global Money Week |
| GNAC | Great Northeast Athletic Conference |
| GNAC | Great Northwest Athletic Conference |
| GOD | Gathering Of Developers |
| GOSF | Google Online Shopping Festival |
| GOSF | Great Online Shopping Festival |
| GPAC | Great Plains Athletic Conference |
| GPBS | Global Pro Bono Summit |
| GPCE | General Practitioner Conference Exhibition |