Rennes 35000 - Bretagne
- Chaumont
- Chaurand
- Chauviere
- Chauvire
- Chauvois
- Chefdor
- Chenard
- Cheneau
- Chennouf
- Cherruault
- Chesnin
- Chesnot
- Chevy
- Chicherie
- Choplin
- Chouin
- Christine
- Chèvre
- Chérel
- Cioban
- Clair
- Clemencet
- Cleret de Langavant
- Clisson
- Cloatre
- Clochet
- Clouard
- Clps
- Coateval
- Cochereau
- Coeurdacier
- Coeurdray
- Coeuru
- Cogam
- Cognard
- Cohignac
- Coiffard
- Coldefy
- Coleou
- Colet
- Colinet
- Collot
- Colombani
- Colomes
- Coly
- Combaud
- Combeau
- Combes
- Combot
- Compain
- Compaore
- Conoir
- Constantin
- Coquel
- Coquerel
- Coquil
- Coquillet
- Corcuff
- Cordeau
- Cordonnier
- Corentin
- Corlouer
- Corriette
- Cosnefroy
- Cosse
- Costes
- Cotard
- Cote
- Cotillard
- Cotte
- Couacault
- Coudert
- Coudoux
- Coudrin
- Coudron
- Couedic
- Coulange
- Couraud
- Courboulay
- Courcoux
- Couronné
- Courtay
- Courtillon
- Couve
- Craignou
- Creignou
- Crepin
- Crete
- Creusot
- Crnokrak
- Crochu
- Crouzet
- Cruaud
- Crusniere
- Crusson
- Cudennec
- Cudon
- Curto
- Cuvillier
- Da Costa