| Galax Old Fiddler’s Convention | Galax | VA | United States | August | Traditional fiddle music and bluegrass, with strong roots influences and elements of Americana within the featured music. |
| Gallagher Fest | Murfreesboro | TN | United States | May | Bluegrass |
| Gambler’s Run Music Festival | Crystal Bay | NV | United States | July | Americana, Jam, Rock |
| Gandy Dancer Festival | Mazomanie | WI | United States | August | Bluegrass |
| Gathering In The Gap | Big Stone Gap | VA | United States | May | Bluegrass |
| George Portz Traditional Music Festival | Festus | MO | United States | September | Bluegrass |
| Georgia State Bluegrass Festival | Folkston | GA | United States | September | Bluegrass |
| Georgia State Fiddlers Convention | Blairsville | GA | United States | June | Fiddle music, bluegrass, country |
| Geroge, WA Bluegrass Festival | George | WA | United States | September | Bluegrass |
| Gettysburg Bluegrass Festival | Gettysburg | PA | United States | August | Bluegrass |
| Gettysburg Bluegrass Festival | Gettysburg | PA | United States | May | Bluegrass |
| Global Citizen Festival | New York City | NY | United States | September | Pop, Rock |
| GoldenSky Country Festival | Sacramento | CA | United States | October | Country |
| Good Old Fashioned Bluegrass Festival | Tres Pinos | CA | United States | August | Bluegrass |
| Grand Country Nights | Hinckley | MN | | August | Country |
| Grand Master Fiddle Championship | Nashville | TN | United States | September | Bluegrass |
| Grand Mesa Songwriter Festival | Cedaredge | CO | United States | June | Singer-songwriter, Americana, folk, and roots music |
| Grass in the Glades | Gibbon Glade | PA | United States | July | Bluegrass |
| Grassroots Finger Lakes Festival | Trumansburg | NY | United States | July | Folk, Jam, Bluegrass, Rock |
| Graves Mountain Festival of Music | Syria | VA | United States | June | Bluegrass |
| Grayson County Old-Time & Bluegrass Fiddler’s Convention | Elk Creek | VA | United States | June | Bluegrass |
| Great Blue Heron Music Festival | Sherman | NY | United States | July | Bluegrass, indie |
| Great South Bay Music Festival | Patchogue | NY | United States | July | Folk, Jam, Rock |
| Green Mountain Bluegrass & Roots | Manchester | VT | United States | August | Roots music, with strong representation of Americana, folk, bluegrass, and singer-songwriter artists. |
| Greenbelt Music Festival | Clive | IA | United States | May | Bluegrass |
| Greenville Country Music Fest | Greenville | SC | United States | October | Country |
| Grey Fox Bluegrass Festival | Oak Hill, | NY | United States | July | Bluegrass, Folk, Jam, Rock |
| Grits ‘n Grass Music Festival | Pickens | SC | United States | September | Bluegrass |
| Grottoes Bluegrass Festival | Grottoes | VA | United States | May | Bluegrass |
| Gulf Coast Jam | Panama City Beach | FL | United States | May | Country |
| Guster’s On The Ocean | Portland | ME | | August | Indie |
