C
- Calder Quartet
- Calvet Quartet
- Camerata String Quartet
- Capet Quartet
- Caprice Quartet
- Carmine Quartet
- Carpe Diem String Quartet
- Catterall Quartet
- Cavani Quartet
- Celosia String Quartet
- Chailley Quartet
- Chester Quartet
- Chiara String Quartet
- Chilingirian Quartet
- Claremont Quartet
- Claring Chamber Players
- Cleveland Quartet
- Clinton String Quartet
- Colorado Quartet
- Concord Quartet
- Coolidge Quartet
- Copenhagen Quartet
- Corigliano Quartet
- Corvinus Quartet
- Covington Quartet
- Coull Quartet
- Crystal Palace String Quartet
- Cuarteto Casals
- Cuarteto Espanol
- Cuarteto Francés
- Cuarteto Latinoamericano
- Curtis Quartet
- Cypress Quartet
- Czech Quartet
Read more about this topic: List Of String Quartet Ensembles