| Abbreviation | Definition |
|---|---|
| GGAC | Georgia Geospatial Advisory Council |
| GGAC | Greater Greenwood Arts Council |
| GGBC | Guatemala Green Building Council |
| GGCC | Green Governments Coordinating Council |
| GGPC | Gwinear Gwithian Parish Council |
| GHACC | Greater Houston Area Coordinating Council |
| GHC | Global Health Council |
| GIBC | Global Indian Business Council |
| GIC | Global Illumination Council |
| GILC | Global Inclusive Leadership Council |
| GLAC | Graduate Leadership Advocacy Council |
| GLC | GLBTQ Leadership Council |
| GLC | Global Learning Council |
| GLC | Green Living Council |
| GLEC | Global Logistics Emissions Council |
| GLMC | Great Lakes Manufacturing Council |
| GLWC | Great Lakes Wind Council |
| GMAC | Graduate Management Admission Council |
| GMAC | Graduate Management Admissions Council |
| GMC | General Medical Council |