Lorient 56100 - Bretagne
- Cleuziou
- Cloerec
- Clugery
- Cochard
- Cochin
- Cogat
- Coguen
- Cohic
- Cohoner
- Coiffic
- Coignard
- Coillot
- Coince
- Coindet
- Cojean
- Colak
- Colineau
- Collober
- Colmant
- Colmou
- Colo
- Colombert
- Colson
- Combet
- Compere
- Coniglio
- Conrad
- Conslin
- Contant
- Conte
- Coquillard
- Corbierre
- Cormier
- Cornaly
- Corne
- Cornou
- Cornély
- Corven
- Cosnard
- Costaouec
- Cotche
- Cotte
- Coueffic
- Couic
- Courant
- Couriaud
- Courtete
- Courtiau
- Cousin
- Coussi
- Covents
- Coëffic
- Coïc
- Crahe
- Crantelle
- Cravic
- Cravier
- Creff
- Cremel
- Creneguy
- Crespel
- Criquet
- Crochard
- Crochet
- Croguennec
- Croissant
- Crombez
- Crossin
- Crouvizier
- Cudon
- Curcio
- Cuzon
- Dacquay
- Dadaev
- Dahioui
- Dahmen
- Dalla Santa
- Dalle
- Dalleau
- Dancray
- Dandine
- Danguillaume
- Danion
- Daoudal
- Das
- Dausse
- de Geneve
- de Larminat
- de Oliveira
- de Pierrepont
- de Soras
- de Stefano
- de Valence de Minardiere
- Dekoninck
- Delabrosse
- Delacroix
- Delahay
- Delalande
- Delalée
- Delaporte