Reims 51100 - Champagne-Ardenne
- Chometon
- Chopart
- Chopliani
- Choquert
- Chosnacki
- Chossenotte
- Choubat
- Chouikh
- Choukri
- Chowaniak
- Chtioui
- Ciampa
- Cil
- Cildir
- Cilluffo
- Cinget
- Cinquin
- Ciolek
- Cislo
- Cissokho
- Cissé
- Citerne
- Cizelle
- Clabault
- Cladel
- Clairet
- Clamy
- Clary
- Claudet
- Claus
- Clavel
- Cliche
- Cloarec
- Clochepin
- Clochez
- Cloez
- Cloos
- Clot
- Cobetto
- Cochart
- Cochin
- Cochon
- Cocquebert
- Codehou
- Coder
- Coeffier
- Coeuret
- Coeuriot
- Cohen
- Coignet
- Cointo
- Coizy
- Colantonio
- Colbeaux
- Colette
- Collier
- Collino
- Colmer
- Colombier Lebon
- Colpin
- Coltier
- Combemorel
- Comblet
- Combo
- Come
- Comel
- Commenil
- Communeau
- Compas
- Compère
- Comyn
- Conce
- Conquere
- Conreur
- Conseil
- Contesse
- Conti
- Coppens
- Copreau
- Coquillard
- Coquizart
- Corbara
- Corbel
- Corda
- Cordani
- Cordeuil
- Cordonnier
- Cordy
- Corentin
- Coret
- Corgié
- Cormon
- Cormy
- Cornec
- Cornellana
- Cornic
- Corpart
- Cortinovis
- Cosmo
- Cosnefroy