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