| Galax Old Fiddler’s Convention | Galax | VA | United States | August | 1st Weekend | 6 Days | Traditional fiddle music and bluegrass, with strong roots influences and elements of Americana within the featured music. | Music |
| Gallagher Fest | Murfreesboro | TN | United States | May | 1st Weekend | 1 Day | Bluegrass | Music |
| Gambler’s Run Music Festival | Crystal Bay | NV | United States | July | 4th Weekend | 3 Days | Americana, Jam, Rock | Music |
| Gandy Dancer Festival | Mazomanie | WI | United States | August | 3rd Weekend | 1 Day | Bluegrass | Music |
| Gathering In The Gap | Big Stone Gap | VA | United States | May | 4th Weekend | 1 Day | Bluegrass | Music |
| George Portz Traditional Music Festival | Festus | MO | United States | September | 4th Weekend | 2 Days | Bluegrass | Music |
| Georgia State Bluegrass Festival | Folkston | GA | United States | September | 4th Weekend | 4 Days | Bluegrass | Music |
| Georgia State Fiddlers Convention | Blairsville | GA | United States | June | 3rd Weekend | 1 Day | Fiddle music, bluegrass, country | Music |
| Geroge, WA Bluegrass Festival | George | WA | United States | September | 2nd Weekend | 7 Days | Bluegrass | Music |
| Gettysburg Bluegrass Festival | Gettysburg | PA | United States | August | 3rd Weekend | 4 Days | Bluegrass | Music |
| Gettysburg Bluegrass Festival | Gettysburg | PA | United States | May | 3rd Weekend | 4 Days | Bluegrass | Music |
| Global Citizen Festival | New York City | NY | United States | September | 4th Weekend | 1 Day | Pop, Rock | Music |
| GoldenSky Country Festival | Sacramento | CA | United States | October | 3rd Weekend | 3 Days | Country | Music |
| Good Old Fashioned Bluegrass Festival | Tres Pinos | CA | United States | August | 2nd Weekend | 2 Days | Bluegrass | Music |
| Gramling Bluegrass Fest | Inman | SC | United States | April | 3rd Weekend | 1 Day | Bluegrass | Music |
| Grand Country Nights | Hinckley | MN | | August | 2nd Weekend | 2 Days | Country | Music |
| Grand Master Fiddle Championship | Nashville | TN | United States | September | 1st Weekend | 2 Days | Bluegrass | Music |
| Grand Mesa Songwriter Festival | Cedaredge | CO | United States | June | 1st Weekend | 2 Days | Singer-songwriter, Americana, folk, and roots music | Music |
| Granite State Music Festival | Rollinsford | NH | United States | August | 2nd Weekend | 3 Days | Americana, Roots, Rock, Blues, Country, and Folk, featuring singer-songwriter artists. | Music |
| Grass in the Glades | Gibbon Glade | PA | United States | July | 4th Weekend | 5 Days | Bluegrass | Music |
| Grassfire Festival | Garrettsville | OH | United States | August | 1st Weekend | 3 Days | Bluegrass | Music |
| Grassroots Finger Lakes Festival | Trumansburg | NY | United States | July | 3rd Weekend | 4 Days | Folk, Jam, Bluegrass, Rock | Music |
| Graves Mountain Festival of Music | Syria | VA | United States | June | 1st Weekend | 3 Days | Bluegrass | Music |
| Grayson County Old-Time & Bluegrass Fiddler’s Convention | Elk Creek | VA | United States | June | 4th Weekend | 2 Days | Bluegrass | Music |
| Great Blue Heron Festival | Sherman | NY | United States | July | 3rd Weekend | 3 Days | Indie | Music |
| Great Blue Heron Music Festival | Sherman | NY | United States | July | 1st Weekend | 2 Days | Bluegrass | Music |
| Great Jones County Fair | Monticello | IA | United States | July | 3rd Weekend | 4 Days | Country, Jam, Rock | Music |
| Great South Bay Music Festival | Patchogue | NY | United States | July | 3rd Weekend | 4 Days | Folk, Jam, Rock | Music |
| Green Mountain Bluegrass & Roots | Manchester | VT | United States | August | 3rd Weekend | 3 Days | Bluegrass | Music |
| Green Mountain Roots Festival | Richmond | VT | United States | August | 3rd Weekend | 4 Days | Roots music, with strong representation of Americana, folk, bluegrass, and singer-songwriter artists. | Music |
| Greenbelt Music Festival | Clive | IA | United States | May | 3rd Weekend | 2 Days | Bluegrass | Music |
| Greenville Country Music Fest | Greenville | SC | United States | October | 3rd Weekend | 3 Days | Country | Music |
| Grey Fox Bluegrass Festival | Oak Hill, | NY | United States | July | 3rd Weekend | 5 Days | Bluegrass, Folk, Jam, Rock | Music |
| Grill Wars: Triple Steak Cook-Off | El Dorado | AR | United States | May | 2nd Weekend | 3 Days | Food festival with a focus on barbecue, featuring live music, food vendors, and the competitive cook-off. | BBQ Festival |
| Grits ‘n Grass Music Festival | Pickens | SC | United States | September | 2nd Weekend | 2 Days | Bluegrass | Music |
| Grottoes Bluegrass Festival | Grottoes | VA | United States | May | 3rd Weekend | 3 Days | Bluegrass | Music |
| Grottoes Bluegrass Festival | Grottoes | VA | United States | October | 1st Weekend | 3 Days | Bluegrass | Music |
| Gulf Coast Jam | Panama City Beach | FL | United States | May | Last Weekend | 4 Days | Country | Music |
| Guster’s On The Ocean | Portland | ME | | August | 2nd Weekend | 3 Days | Indie | Music |
