| Abbreviation | Definition |
|---|---|
| GDAHC | Greater Detroit Area Health Council |
| GDB | Guide Dogs for the Blind |
| GDF | Graves Disease Foundation |
| GDF | Guide Dog Foundation |
| GDFB | Guide Dog Foundation For The Blind |
| GDFB | Guide Dogs for the Blind |
| GDI | Gasoline Direct Inject |
| GDOA | Guide Dogs of America |
| GDTC | Greater Derry Track Club |
| GE | Green Empowerment |
| GEB | Guiding Eyes for the Blind |
| GEBI | Guiding Eyes for the Blind, Inc. |
| GECF | Gas Exporting Countries Forum |
| GEEA | Group for Energy Efficient Appliances |
| GEI | Guiding Eyes, Inc. |
| GEM | Good Enthusiastic Member |
| GENO | Global Entrepreneurs Network Organization |
| GERF | Gilbert Emergency Relief Fund |
| GERI | Gifted Education Resource Institute |
| GERL | Georgia Equine Rescue league, LTD. |