- STPH
- Straight Forward
- Strange Creek Singers
- Strange Rangers
- Stranger Creek
- Strangers With Candy
- Strause & Company
- Streamline
- Streetchoir
- Strength in Numbers
- Striker Howard
- Striking Matches
- String Band Classics
- Stringbean
- Stringtown Pickers
- Stroatklinkers
- Struggle Jennings
- Strummindude
- Stu Stevens
- Stuart Duncan
- Stuart French
- Stuart Hamblen
- Stuart Mcleod
- Stubby's Tune Goons
- Sturgill Simpson
- Sue Gilmore
- Sue Gleason
- Sue Powell
- Sue Reno
- Sue Richards
- Sue Thompson
- Sue Tice
- Sugar
- Sugar
- Sugar Slick
- Sugar Slick, Assassin & Greg Hinds
- SugarBeat
- Sugarland
- Sugarman
- Sula's Texas Rangers
- Summer Wages
- Summerfield
- Summerlyn Powers
- Summertown Road
- Summie L. Hendrick
- Sunday Sharpe
- Sunday Skifflers
- Sundogs
- Sundy Best
- Sunny Mountain Boys
- Sunny Sweeney