| Tacofest at Daredevil Brewing Company | Indianapolis | IN | United States | July | 2nd Weekend | 1 Day | Variety | Food Festival |
| Tailgate N’ Tallboys Michigan | Midland | MI | United States | July | 4th Weekend | 2 Days | Country | Music |
| Talladega Bluegrass & Fingerstyle Guitar Festival | Lincoln | AL | United States | August | 1st Weekend | 3 Days | Bluegrass and Fingerstyle | Music |
| Tampa Bay Blues Festival | St. Petersburg | FL | United States | April | 2nd Weekend | 3 Days | Blues, Rock | Music |
| Tampico Fest | Tampico | IL | United States | July | 3rd Weekend | 4 Days | Variety | Community Festival |
| Tazewell Country Fiddlers Convention | Tazewell | VA | United States | July | 2nd Weekend | 2 Days | Bluegrass | Music |
| TedFest | Wallsburg | UT | United States | July | 3rd Weekend | 3 Days | Variety | Music |
| Telluride Bluegrass Festival | Telluride | CO | United States | June | 3rd Weekend | 4 Days | Bluegrass, with some Americana and roots influences | Music |
| Telluride Blues and Brews | Telluride | CO | United States | September | 2nd Weekend | 3 Days | Bluegrass, Blues, Folk | Music |
| Telluride Jazz Festival | Telluride | CO | United States | August | 2nd Weekend | 3 Days | Jazz, Folk | Music |
| Tennessee Valley Old Time Fiddlers Convention | Athens | AL | United States | October | 1st Weekend | 3 Days | Old-time fiddle music, bluegrass, and traditional folk | Music |
| Tennessee Valley Old Time Fiddlers Convention | Athens | TN | United States | October | 1st Weekend | 4 Days | Bluegrass | Music |
| Thanksgiving Bluegrass Festival | Brooksville | FL | United States | November | Thanksgiving Weekend | 2 Days | Bluegrass | Music |
| That Music Fest | Durham | NC | United States | October | 2nd Weekend | 1 Day | Bluegrass | Music |
| The Big Stomp | Louisville | KY | United States | July | 4th Weekend | 2 Days | R&B, Soul | Music |
| The Big What? | Pittsboro | NC | United States | August | 4th Weekend | 3 Days | Jam | Music |
| The Centralia Campout | Centralia | VA | United States | August | 2nd Weekend | 9 Days | Bluegrass | Music |
| The Country Music Cruise | Lauderdale | FL | United States | January | 3rd Weekend | 7 Days | Country | Music |
| The Great American Bluegrass Jam | Owensboro | KY | United States | March | 3rd Weekend | 3 Days | Bluegrass | Music |
| The Huck Finn Jubilee | Ontario | CA | United States | October | 1st Weekend | 3 Days | Bluegrass, with workshops, competitions, and performances | Music |
| The Infamous Weekend | Martinsville | VA | United States | September | 3rd Weekend | 2 Days | Bluegrass, Jam | Music |
| The Lakes Bluegrass Festival | Pine River | MN | United States | August | 4th Weekend | 4 Days | Bluegrass | Music |
| The Long Island Bluegrass & Roots Music Festival | Copiague | NY | United States | August | 3rd Weekend | 1 Day | Bluegrass | Music |
| The Malpass Brothers Bluegrass & Country Music Festival | Denton | NC | United States | May | 2nd Weekend | 3 Days | Bluegrass | Music |
| The McDowell County Round Up | Marion | NC | United States | August | 2nd Weekend | 2 Days | Bluegrass | Music |
| The MusicFest Steamboat | Steamboat Springs | CO | United States | January | 1st Weekend | 6 Days | Blues, Country, Folk | Music |
| The National Oldtime Fiddlers’ Contest & Festival | Weiser | ID | United States | June | 3rd Weekend | 6 Days | Old-time fiddle music, with a focus on traditional styles and competitions | Music |
| The North Carolina ‘Cuegrass Festival | Raleigh | NC | United States | April | 3rd Weekend | 1 Day | Bluegrass | Music |
| The Osborne Brother’s Hometown Festival | Hyden | KY | United States | August | 1st Weekend | 2 Days | Bluegrass | Music |
| The Ramble Festival | Darlington | MD | United States | October | 2nd Weekend | 3 Days | Bluegrass | Music |
| The Tony Rice Memorial Day MusicFest at Camp Springs | Elon | NC | United States | May | Memorial Day Weekend | 3 Days | Bluegrass | Music |
| TheBigWonderful BEERFEST | Denver | CO | United States | May | 1st Weekend | 1 Day | Varied, often featuring local and regional bands, with a focus on the craft beer experience | Music |
| Thing Festival | Carnation | WA | United States | August | 2nd Weekend | 3 Days | Indie, Pop, Rock | Music |
| Thomas Point Beach BG Festival | Brunswick | ME | United States | September | Labor Day Weekend | 4 Days | Bluegrass | Music |
| Thousand Island Bluegrass Festival | Clayton | NY | United States | June | 2nd Weekend | 3 Days | Bluegrass | Music |
| Tico Time Bluegrass | Aztec | NM | United States | June | 3rd Weekend | 3 Days | Bluegrass | Music |
| Timber! | Carnation | WA | United States | July | 4th Weekend | 3 Days | Indie | Music |
| Topanga Banjo-Fiddle Contest & Folk Festival | Agoura Hills | CA | United States | May | 3rd Sunday | 1 Day | Folk music, with a focus on banjo and fiddle playing, including competitions and performances | Music |
| Tortuga Music Festival | Fort Lauderdale | FL | United States | April | 1st Weekend | 3 Days | Bluegrass, Country, Rock | Music |
| Townsend Fall Heritage Festival | Townsend | TN | United States | September | 4th Weekend | 2 Days | Bluegrass | Music |
| Tri-State Bluegrass Music Festival | Kendallville | IN | United States | September | Labor Day Weekend | 4 Days | Bluegrass | Music |
| Tuck Fest | Charlotte | NC | United States | April | 3rd Weekend | 3 Days | Bluegrass, Folk, Jam | Music |
| Twin Bridges Bluegrass Festival | Twin Bridges | MT | United States | June | 4th Weekend | 3 Days | Singer-songwriter, Americana, folk, and roots music | Music |
| Twin Oaks Spring Bluegrass Festival | Hoboken | GA | United States | May | 1st Weekend | 3 Days | Bluegrass | Music |
| Twin Oaks Spring Bluegrass Festival | Hoboken | GA | United States | September | 1st Weekend | 3 Days | Bluegrass | Music |
| Two Rivers Bluegrass Festival | Durand | IL | United States | September | 3rd Weekend | 3 Days | Bluegrass | Music |
| Two Rivers Music Festival | Logansport | IN | United States | June | 2nd Weekend | 3 Days | Rock, Pop, Blues, Country | Music |
| Two Step Inn Festival | Georgetown | TX | United States | April | 1st Weekend | 2 Days | Country | Music |
| Tygh Valley Bluegrass Jamboree | Typh Valley | OR | United States | September | 3rd Weekend | 3 Days | Bluegrass | Music |
