| The Circ |
| The Circles Quartet |
| The Cistercian Monks of Stift Heiligenkreuz |
| The Citizens of Halloween |
| The City |
| The City Drive |
| The City Harmonic |
| The City Lights |
| The Civil Wars |
| The Cla-Zels |
| The Clancy Brothers |
| The Clancy Brothers & Tommy Makem |
| The Clare Fischer Voices |
| The Clarendonians |
| The Clarinet Summit |
| The Clark Family Experience |
| The Clark Sisters |
| The Clark Sisters |
| The Clarke Nova |
| The Clarke/Duke Project |
| The Clarks |
| The Clash |
| The Class Assassins |
| The Class Of 98 |
| The Classic Crime |
| The Classic Jazz Trio |
| The Classic Night Orchestra |
| The Classics |
| The Claudettes |
| The Clayton-Hamilton Jazz Orchestra |
| The Clebanoff Strings |
| The Cleftones |
| The Clement Peerens Explosition |
| The Clerkenwell Kid |
| The Click |
| The Click Five |
| The Clientele |
| The Cliff Adams Singers |
| The Cliks |
| The Climax Chicago Blues Band |
| The Clinch Mountain Boys |
| The Clintons |
| The Clique |
| The Clockwork Angels String Ensemble |
| The CloneOfYou |
| The Cloud Hymn |
| The Cloud Room |
| The Clovers |
| The Clowns |
| The Clubmen |
| The Clumsy Lovers |
| The Clyde Valley Stompers |
| The Clydesiders |
| The Co-Dependents |
| The Co-Operative |
| The Coachmen |
| The Coal Miners |
| The Coal Mountain Ramblers |
| The Coal Porters |
| The Coast String Quartet |
| The Coasters |
| The Coats |
| The Coco Brothers |
| The Coconutz |
| The Coffin Nails |
| The Cole Brothers |
| The Colin Busby Big Swing Band |
| The Collapsable Hearts Club |
| The Collective |
| THE COLLECTORS |
| The Collins Kids |
| The Color |
| The Color Fred |
| The Color Morale |
| The Colorist |
| The Colour |
| The Colour Field |
| The Colourist |
| The Colts |
| The Comas |
