| Abbreviation | Definition |
|---|---|
| GCAG | Global Community Advisory Group |
| GEAB | Graduate Education Advisory Board |
| GEAC | Gender Equity Advisory Committee |
| GEAC | Genetic Engineering Advisory Committee |
| GEAC | Gimli Environmental Advisory Committee |
| GEAC | Greenbelt East Advisory Coalition |
| GFEAB | Georgia Film and Entertainment Advisory Board |
| GFRAS | Global Forum for Rural Advisory Services |
| GFRAS | Global Forum of Rural Advisory Services |
| GIAB | Groundfish Integrated Advisory Board |
| GKA | Gordian Knot Advisory |
| GLOSA | Green Light Optimal Speed Advisory |
| GLSA | Gentoo Linux Security Advisories |
| GMAS | Global Mobility Advisory Services |
| GPAC | General Plan Advisory Committee |
| GPPAC | General Practice Partnership Advisory Council (Australia) |
| GRAC | Generating Resources Advisory Committee |
| GRAC | Governor's Redistricting Advisory Committee |
| GRAC | Groundwater Resources Advisory Committee |
| GRAG | Government Relations Advisory Group |