Lorient 56100 - Bretagne
- Carrio
- Carvalho
- Castanie
- Castelot
- Castot
- Castro
- Catherine-joffrion
- Caussel
- Cavan
- Cecconi
- Chadli
- Chagnon
- Chagrot
- Chahboun
- Chandavoine
- Chanfi
- Chani
- Chapel
- Chapelle
- Chapelot
- Chappel
- Chapron
- Charbonneau
- Charbonnier
- Chardon
- Chardonnet
- Chardoux
- Charliot
- Charmel
- Charrette
- Charzat
- Chatelard
- Chatelin
- Chaudronnier
- Chaupin
- Chaze
- Chemille
- Chemin
- Chenal-bordonnot
- Chenebaud
- Cheny
- Cherioux
- Cherruau
- Cheru
- Chesneau
- Chevallier
- Chevance
- Chevillard
- Chevray
- Chigot
- Chikha
- Chivot
- Chnafi Haigoune
- Chollet
- Chopin
- Chrestien
- Christelle
- Ciaravola
- Cirtog
- Clairon
- Claisse
- Clemot
- Clenet
- Cleren
- Cleuziou
- Cliche
- Cloatre
- Clugery
- Coat
- Coatmelec
- Cochard
- Coche
- Cocher
- Cocoual
- Coguen
- Cohen
- Cohic
- Cohoner
- Cohonner
- Coiffard
- Coiffic
- Coignard
- Coince
- Coindet
- Colak
- Colmou
- Colo
- Colson
- Coniglio
- Conrad
- Conseil
- Conslin
- Contant
- Coquelin
- Coquet
- Corbiere
- Corbierre
- Corbille
- Cordroch
- Coreau