- Texas Swing
- Texas Swing Pioneers
- Texas Tenors
- Texas Toothpicks
- Texas Tophands
- Texas Troubadors
- Texas Troubadours
- Texas Unlimited Band
- Texas Wanderers
- Texas Winds
- Texum
- TFDT
- T.G. Sheppard
- Thad Cockrell
- Thad Foster
- Thane Hughes
- The 1861 Project
- The Abagadasset String Band
- The Abrams Brothers
- The Accidental Band
- The Acid Reflux Sushi Swing Band
- The Acoustic Medicine Show
- The Acoustic Mining Company
- The Acousticals
- The Actual Tigers
- The Agave Posse Band
- The Akins
- The A.L. Phillps Family
- The Alabama Cowboy,
- The Alex Michael Band
- The Alferd Packer Memorial String Band
- The All Night Gang
- The All-Togethers
- The Almanac Singers
- The Almost Patsy Cline Band
- The Amalgamators
- The Amazing Delores
- The Amazing Rhythm Aces
- The Amundruds
- The Andy Rau Band
- The Andy Rau Band
- The Anita Kerr Quartet
- The Argentine Trio
- The Arkansas Barefoot Boys
- The Arkhams
- The Armstrong Twins
- The Arthur Smith Trio
- The Ash Family
- The Atkins String Company
- The Atomic Hillbillies
- The Attention Deficit String Band
- The Avett Brothers
- The Babcocks
- The Backsliders
- The Backstretch Boys
- The Backwood Boyz
- The Bagboys
- The Baker Boys
- The Baker Girls
- The Baldknobbers
- The Ball Sisters Band
- The Ballachulish Hellhounds
- The Balyeats
- The Bama Band
- The Band Perry
- The Bandanas
- The Bang Boys
- The Barefoot Movement
- The Barker Band
- The Barn Burners
- the barnyard cupcakes
- The Barrier Brothers
- The Bashful Brothers
- The Bastard Sons of Johnny Cash
- The Baylor Brothers
- The Bays Brothers
- The Beards
- The Bearfoot Hookers
- The Beat Farmers
- The Beau Roland Band
- The Beau Street Runners
- The Beautiful Loser Society
- The Beauty Shop
- The Bell Boys
- The Bellamy Brothers
- The Beverly Hillbillies
- The Big Bull Band
- The Big Cheese All Stars
- The Big Galoots
- The Big Sky Ensemble
- The Big Sky Mudflaps
- The Bigun Brothers
- The Billy's
- The Biscuit Burners
- The Bistodeau Family
- The Black Lillies