- Calvin Russell
- Camila Gaechter Rios
- Capital Sons
- Carbon Leaf
- CARDIP
- Carl Anderson
- Carl Carlton
- Carl Carlton & The Songdogs
- Carl Perkins
- Carla Olson
- Carla Olson & Mick Taylor
- Carla Olson & The Textones
- Carlene Carter
- Carlos Elliot
- Carly Jamison
- Carmen
- Caroline Rose
- Carrie Newcomer
- Cast Iron Filter
- Cedar Rose
- Celtic World Orchestra
- Classic Sounds
- Clay Moore
- Clever Hopes
- Climax Blues Band
- Cocobark
- Coconut Kings
- Coinneach
- Colin Winski
- Commander Cody
- Commander Cody & His Lost Planet Airmen
- Connor McDowell
- Copper Box
- Cordovas
- Cornstalk
- Cory M. Coons
- Counting Crows
- Cracker
- Creedence Clearwater Revival
- Creedence Clearwater Revival Tribute
- Creedence Clearwater Revived