- Clubb Patrol -- Clyde Lieberman
- Clyde Lightning George -- Co3olt
- CO4 -- Coby Geter
- C.O.C. -- Coco Zhao
- Cocoa Beats -- Codi Lester
- Codiak -- Coho
- Coho Lips -- Cold Cuts
- Cold Cutz Crew -- Colegio Musical
- Colein -- Colin Hicks
- Colin Hodgkinson -- Collapsed Lung
- Collapsed System -- Colley
- Collide -- Colonna & Gambale
- Colonna Infame -- Colony