| Abbreviation | Definition |
|---|---|
| GSMF | Golden State Minority Foundation |
| GSSF | Glock Shooting Sports Foundation |
| GTBF | Guru Tegh Bahadur Foundation |
| GTF | Georgia Tech Foundation |
| GTF | Georgia Transplant Foundation |
| GTF | Graduate Theological Foundation |
| GTF | Greater Texas Foundation |
| GTRCF | Grand Traverse Regional Community Foundation (Michigan) |
| GTRF | Gordon and Tana Ramsay Foundation |
| GUBF | German University Bangladesh Foundation |
| GUF | Galway University Foundation |
| GVHF | Greater Victoria Hospitals Foundation |
| GWAF | Garden Writers Association Foundation |
| GWCF | Gertrude Wood Community Foundation |
| GWCF | Greater Washington Community Foundation |
| GWF | Good Work Foundation |
| GWPF | Global Warming Policy Foundation |
| GYF | Gangnath Youth Foundation |
| GYF | Global Youth Foundation |
| GYF | Grand Youth Foundation |