Paris - Île-de-France
- Cornuau
- Cornubert
- Corona
- Coronado
- Corradi
- Corral
- Corret
- Corrihons
- Corriol
- Corruble
- Corsino
- Cortey
- Cortier
- Corty
- Coruble
- Corveller
- Corvi
- Cosic
- Coslin
- Cosnard
- Cossa
- Costagliola
- Costea
- Costecalde
- Cotelle
- Cotellon
- Cotillard
- Cotillon
- Cotinaud
- Cotineau
- Coto
- Cottenceau
- Cottenot
- Couanon
- Couasnon
- Couchaux
- Couchot
- Coudret
- Coudry
- Coudy
- Couedic
- Couffon
- Couji
- Coulier
- Coulin
- Coullon
- Coulom
- Couly
- Coune
- Counil
- Couplet
- Couque
- Couralet
- Courapied
- Couratier
- Courbier
- Courbiere
- Courche
- Courgeon
- Courgey
- Couriol
- Cournede
- Courregelongue
- Courrieu
- Courroux
- Coursaget
- Coursault
- Courtaigne
- Courtonne
- Cousi
- Coussegal
- Coussement
- Cousseran
- Cousson
- Coustal
- Cousteau
- Coustet
- Couston
- Coutal
- Coutelen
- Coutheillas
- Coutou
- Coutris
- Couvert
- Couvignou
- Couzy
- Coué
- Covas
- Coy
- Coyac
- Coyle
- Coz
- Cozian
- Craplet
- Crapoulet
- Craunot
- Crausaz
- Credoz
- Cremniter
- Crenin

