| Hammons Family Fiddle & Banjo Contests and World Class Jam | Marlinton | WV | United States | July | 2nd Weekend | 1 Day | Bluegrass | Music |
| Hampton Bluegrass and Country Music Festival | Hampton | IA | United States | June | 2nd Weekend | 4 Days | Bluegrass | Music |
| Hardly Strictly Bluegrass | San Francisco | CA | United States | October | 1st Weekend | 3 Days | Bluegrass, with some Americana, Folk, and Roots influences | Music |
| Hardtimes Bluegrass Festival | Hamilton | MT | United States | July | 4th Weekend | 3 Days | Bluegrass | Music |
| Harley-Davidson Homecoming Festival | Millwaukee | WI | United States | July | 4th Weekend | 4 Days | Rock, Country, Blues, and Pop | Music |
| Harmony Woods Music & Beer Fest | Bel Air | MD | United States | June | 3rd Weekend | 2 Days | Bluegrass | Music |
| Hawaii Songwriting Festival | Kauai | HI | United States | May | Last Weekend | 3 Days | Singer-songwriter, Americana, folk | Music |
| Headin’ Home Fest | Swainsboro | GA | United States | October | Last Weekend | 4 Days | Bluegrass, with a focus on family-friendly atmosphere and camping | Music |
| Headwaters Country Jam | Three Forks | MT | United States | July | 4th Weekend | 3 Days | Country | Music |
| Hiawatha Traditional Music Festival | Marquette | MI | United States | July | 3rd Weekend | 3 Days | Variety | Music |
| Hickory Grove Bluegrass Festival | Deville | LA | United States | October | 1st Weekend | 3 Days | Bluegrass | Music |
| High Mountain Hay Fever Festival | Westcliffe | CO | United States | July | 2nd Weekend | 4 Days | Americana, roots, bluegrass, folk, and a variety of other genres | Music |
| High Sierra Music Festival | Quincy | CA | United States | July | 4th of July Weekend | 4 Days | Bluegrass | Music |
| Highland Country Bluegrass Festival | Hillsboro | OH | United States | June | 3rd Weekend | 2 Days | Bluegrass | Music |
| Highlands Bluegrass Festival | Sloatsburg | NY | United States | September | 2nd Sunday | 1 Day | Bluegrass | Music |
| Hillberry Harvest Moon Festival | Eureka Springs | AR | United States | October | 1st Weekend | 5 Days | Bluegrass, Jam | Music |
| Hinterland Music Festival | St. Charles | IA | United States | August | 1st Weekend | 2 Days | Indie, Alternative, Folk, Rock, Bluegrass with a diverse lineup across various genres | Music |
| Hippiefest | Omaha | NE | United States | August | 4th Weekend | 2 Days | Variety | Music |
| HOBA’s Fall Bluegrass Festival | West Plains | MO | United States | September | 4th Weekend | 3 Days | Bluegrass | Music |
| HOBA’s Spring Bluegrass Festival | West Plains | MO | United States | June | 2nd Weekend | 3 Days | Bluegrass | Music |
| HOBO Spring Bluegrass Festival | West Plains | MO | United States | June | 2nd Weekend | 3 Days | Bluegrass | Music |
| Hodag Country Festival | Rhinelander | WI | United States | July | 2nd Weekend | 4 Days | Country | Music |
| Holly Bluegrass Festival | Holly | CO | United States | August | 3rd Weekend | Check Online | Bluegrass | Music |
| Hollywood Rescue Squad Bluegrass Festival | Leonardtown | MD | United States | September | 2nd Weekend | 3 Days | Bluegrass | Music |
| Holo Holo California | Sacramento | CA | United States | September | 3rd Weekend | 2 Days | Reggae | Music |
| Honeymoon Island Bluegrass Festival | Dunedin | FL | United States | December | 1st Saturday | 1 Day | Bluegrass | Music |
| Hoppin’ John Old-Time & Bluegrass Fiddler’s Convention | Pittsboro | NC | United States | September | 2nd Weekend | 3 Days | Bluegrass | Music |
| Horseshoe Music Festival | Jackson | WY | United States | September | Labor Day Weekend | 3 Days | Americana | Music |
| Hot August Music Festival | Cockeysville | MD | United States | August | 2nd Weekend | 1 Day | Bluegrass, Jam | Music |
| Hoxeyville Music Festival | Wellston | MI | United States | August | 2nd Weekend | 3 Days | Americana, with Folk, Roots, and Singer-Songwriter influences. | Music |
| Huck Finn Jubilee | San Dimas | CA | United States | October | 1st Weekend | 3 Days | Bluegrass | Music |
