Paris - Île-de-France
- Contamin
- Contino
- Cools
- Coornaert
- Coqueret
- Cor
- Corbe
- Corbett
- Corbi
- Corcia
- Cordeau
- Cordel
- Cordella
- Cordellier
- Cordoliani
- Corfmat
- Cori
- Coric
- Coridon
- Cornillon
- Cornily
- Cornubert
- Correas
- Corret
- Cortese
- Cortyl
- Corveller
- Corvi
- Cosentino
- Cosialls
- Coslin
- Cosnard
- Cosperec
- Cosqueric
- Cossa
- Costamagna
- Costecalde
- Costerousse
- Costescu
- Cotard
- Cotellon
- Cotineau
- Cottenceau
- Coty
- Coubard
- Couchaux
- Coucke
- Coudair
- Couder
- Coudreau
- Coudrin
- Coudry
- Coudy
- Couedic
- Coumau
- Counil
- Coupeau
- Coupel
- Courbot
- Courcelles
- Courche
- Courie
- Courpied
- Coursaget
- Courtay
- Courtecuisse
- Courtiade
- Coussegal
- Cousseran
- Coussieu
- Coussot
- Coustaud
- Cousteix
- Couston
- Coutellier
- Coutheillas
- Couthon
- Coutier
- Coutris
- Couverchel
- Couvez
- Couvignou
- Couvrat
- Couzon
- Couzy
- Coyne
- Cozanet
- Cozma
- Crampon
- Crampont
- Crane
- Craplet
- Cremel
- Cremoux
- Crepet
- Cressy
- Crestey
- Crestin
- Crete
- Cretu