Lorient 56100 - Bretagne
- Cadiou
- Caillaud
- Caille
- Calis
- Calloc'h
- Calve
- Cam
- Camenen
- Capp
- Cappe
- Carcel
- Cardonne
- Careo
- Carlier
- Carnec
- Caro
- Carrer
- Carreric
- Carteron
- Casanova
- Cassan
- Castelot
- Castro
- Catherine
- Catherine-joffrion
- Catrevaux
- Caubet
- Cecconi
- Chacun
- Chadli
- Chagnon
- Chahboun
- Chalons
- Chandavoine
- Chanliaux
- Chapel
- Chapelat
- Chapelle
- Chardon
- Chardoux
- Charliot
- Charmel
- Charrette
- Chartier
- Chaudronnier
- Chaze
- Chemille
- Chenal-bordonnot
- Cheny
- Cherioux
- Cherruau
- Cheru
- Chesnel
- Chevallier
- Chevray
- Chopin
- Chrestien
- Christelle
- Churie
- Ciaravola
- Cipolla
- Clemot
- Clenet
- Cleren
- Cloerec
- Cloirec
- Cloitre
- Coche
- Cocoual
- Cocoual Levoeuf
- Coguen
- Cohen
- Cohic
- Coic
- Coiffic
- Coignard
- Coillot
- Coindet
- Cojean
- Colmant
- Colo
- Colson
- Combes
- Coniglio
- Conrad
- Conseil
- Conslin
- Conte
- Coquillard
- Corbe
- Corbierre
- Corbille
- Corbou
- Coreau
- Corlou
- Cormier
- Cornaly
- Cornec
- Cornou
- Cornély

