Paris - Île-de-France
- Cogne
- Cogrel
- Cohana
- Cohen-salmon
- Cohen-tanugi
- Cohet
- Coia
- Coicadan
- Cointet
- Cojan
- Cojean
- Cojocaru
- Cola
- Colardelle
- Colcanap
- Colcombet
- Colignon
- Colina
- Colladant
- Collery
- Colletta
- Collobert
- Colly
- Colon
- Colosimo
- Combarel
- Combrouze
- Comment
- Condamin
- Conesa
- Conforti
- Congiu
- Connault
- Connelly
- Conseil
- Console
- Constanty
- Contassot
- Conter
- Contesso
- Coolen
- Coquel
- Coquereau
- Coquerelle
- Coquille
- Coquio
- Corbe
- Corda
- Cordahi
- Cordel
- Cordial
- Cordoliani
- Cori
- Coric
- Corlay
- Cormerais
- Corneau
- Cornillet
- Cornuault
- Cornuel
- Corpechot
- Correas
- Corrin
- Corruble
- Cortese
- Cortial
- Corvol
- Cosialls
- Cosich
- Cosqueric
- Cossin
- Costanzo
- Costerousse
- Costi
- Cothenet
- Coti
- Cotin
- Cottebrune
- Cotto
- Coty
- Coudin
- Coudoux
- Coudreau
- Coudrier
- Couedel
- Coulier
- Coullon
- Coulombel
- Coulondre
- Coulot
- Coupet
- Coupez
- Coupin
- Couppey
- Courbe
- Courbot
- Courchinoux
- Courdavault
- Courel
- Courgeon

