- Blackhawk -- Blackwater Draw
- Blackwell Brothers Band -- Blair Combest
- Blair Daly -- Blake Mountain Band
- Blake Powers -- Blanche Tate
- Blane Gauss -- Bleu Edmondson Band
- Bleu Lane -- Blondie Brooks
- Blondie Hill -- Blue Broussard
- Blue County -- Blue Highway
- Blue Jug Band -- Blue Moon Rising
- Blue Moonshine -- Blue Ridge Buddies
- Blue Ridge Duo -- Blue Rodeo
- Blue Roots Bluegrass Band -- Bluegrass 43
- Bluegrass 45 -- Bluegrass Brethren
- Bluegrass Brothers -- Bluegrass Mandolin Ensemble
- Bluegrass Mandolin Extravaganza -- Bluestone
- Bluetail Flies -- Bo Isaac
- Bo Jones -- Boat Folk Records Presents
- Bob Abbott -- Bob Archer & Bonnie Blue Eyes
- Bob Atcher -- Bob Bennett's Band