Brest 29200 - Bretagne
- Chevet
- Chevignac
- Chevillotte
- Chikhi
- Chimier
- Choquer
- Chouraki
- Chrétien
- Chuniaud
- Chupin
- Ciavaldini
- Claire
- Claudel
- Claudie
- Claudine
- Clavel
- Clemence
- Clervoy
- Cleton
- Clivio
- Close
- Cloâtre
- Cléguer
- Coader
- Coatantiec
- Coatanéa
- Coateval
- Cocheril
- Cochou
- Codinach
- Coiffier
- Cointrel
- Collignon
- Collinet
- Colliot
- Collo
- Collot
- Colombani
- Colpaert
- Cols
- Combe
- Comble
- Comte
- Conort
- Constans
- Contamine
- Convert
- Copin
- Coquart
- Coquelet
- Coquin
- Corde
- Cordoba
- Corentin
- Corieras
- Corlosquet
- Cormier
- Cornette
- Corson
- Corvez
- Cosleou
- Cosmao
- Cossard
- Cosse
- Cosson
- Coste
- Costet
- Cot
- Cotard
- Cottard
- Cottereau
- Cotty
- Couchevellou
- Coucoune
- Coudray
- Couffin
- Couix
- Coulouarn
- Coupez
- Couppey
- Courant
- Courbet
- Courgeon
- Courriol
- Court
- Coustance
- Coutard
- Coutelet
- Couture
- Couvin
- Coyat
- Craff
- Craouyeur
- Creachcadec
- Creignou
- Creis
- Creismeas
- Crepet
- Creusot
- Creze

