Paris - Île-de-France
- Cocquet
- Coeuret
- Cohen Arazi
- Cohen Skalli
- Cohen-skalli
- Coia
- Coic
- Coicadan
- Coillot
- Cointepas
- Coirre
- Cojocaru
- Colcanap
- Colcombet
- Colella
- Colleau
- Colleaux
- Colnot
- Coloma
- Combemorel
- Comment
- Compaore
- Compoint
- Conforti
- Conrath
- Conseil
- Conteh
- Convers
- Coppa
- Coquio
- Corcia
- Corda
- Cordelle
- Cordesse
- Cordova
- Corlay
- Cormerais
- Correard
- Correas
- Corrin
- Corty
- Cosich
- Cossa
- Cosserat
- Costamagna
- Costedoat
- Cota
- Cottinet
- Couasnon
- Couchet
- Coucke
- Coudin
- Coudon
- Coudoux
- Coudry
- Coudurier
- Couget
- Coulondre
- Coupeau
- Coupet
- Courbe
- Courchay
- Courgey
- Courie
- Courpied
- Courquin
- Coursin
- Courtecuisse
- Courtheoux
- Coussieu
- Coutarel
- Couve
- Couvidat
- Couvignou
- Couvret
- Coyard
- Craff
- Crayssac
- Creac'h
- Crepeau
- Crepon
- Creppy
- Crespi
- Cressan
- Cressent
- Cressot
- Crestey
- Cretu
- Creveau
- Crispin
- Crochemore
- Crockett
- Croitoru
- Crouin
- Crouzel
- Cruchon
- Cubillos
- Cuenin
- Cuisset
- Cunat