Rennes 35000 - Bretagne
- Cioban
- Clair
- Clara
- Clemencet
- Cleret de Langavant
- Clisson
- Cloatre
- Clochet
- Clouard
- Clps
- Coateval
- Cochereau
- Coeurdacier
- Coeurdray
- Coeuru
- Cogam
- Cognard
- Cohignac
- Coiffard
- Coldefy
- Coleou
- Colet
- Colinet
- Collot
- Colombani
- Combaud
- Combeau
- Combes
- Combot
- Commeureuc
- Compaore
- Conoir
- Coquard
- Coquil
- Corbet
- Cordeau
- Cordonnier
- Corentin
- Corlouer
- Corriette
- Cosnefroy
- Cosse
- Costes
- Cotard
- Cote
- Cotillard
- Cotte
- Couacault
- Coudert
- Coudoux
- Coudrin
- Coudron
- Couedic
- Couillard
- Coulange
- Couprie
- Couraud
- Courboulay
- Courcier
- Courcoux
- Couronné
- Courtay
- Courtet
- Couve
- Craignou
- Crepin
- Crete
- Creusot
- Crnokrak
- Croizer
- Crolais
- Crouzet
- Cruaud
- Crusniere
- Crusson
- Cudennec
- Curto
- Cuvillier
- Da Costa
- Daguenet
- Daher
- Dahirel
- Dahyot
- Daigre
- Daligault
- Dalle
- Dang
- Dantec
- Danveau
- Danze
- Dao
- Daoudal
- Daouphars
- Darcel
- Darkaoui
- Daubaire
- Dauny
- Dauphin
- Dautel
- Daval
