Rennes 35000 - Bretagne
- Coeuru
- Cogam
- Cognet
- Cogné
- Cohic
- Coic
- Coirier
- Colasse
- Colcombet
- Coldefy
- Colet
- Collas
- Colleau
- Colling
- Collobert
- Coloigner
- Colombier
- Colomes
- Colonne
- Coly
- Combaud
- Combe
- Combescot
- Comboue
- Come
- Comere
- Comier
- Commandoux
- Commault
- Compain
- Compere
- Conquerant
- Conte
- Coolen
- Copin
- Coquard
- Coquer
- Coquin
- Coquio
- Corbillon
- Corcuff
- Cordeau
- Cordon
- Cordonnier
- Corlouer
- Cormand
- Corne
- Cornier
- Cornou
- Cornu-deschamps
- Corot
- Corpet
- Correia
- Corriette
- Corson
- Corvez
- Cos
- Cosnard
- Cosperec
- Cossec
- Cosset
- Cossic
- Cossin
- Costalat
- Coste
- Cotiniaux
- Cotonnec
- Cotte
- Cottebrune
- Cotten
- Cottenceau
- Cottet
- Cotty
- Couabault
- Couanon
- Coubard
- Couchouron
- Coudron
- Couedic
- Couepel
- Couet
- Couety
- Couillard
- Couka
- Coulet
- Coulm
- Coupel
- Coupey
- Courcoux
- Couronné
- Courselaud
- Courtay
- Courteille
- Courtial
- Courtiaud
- Courtillon
- Coustou
- Coutable
- Couteau
- Coutelle

