Saint-Quentin 02100 - Picardie
- Caillaux
- Cailleux
- Caire
- Calcagnile
- Caldas
- Cambier
- Cambray
- Campagne
- Campoverde
- Canel
- Capellier
- Capiaux
- Capito
- Caplin
- Carcelé
- Carcy
- Care
- Caro
- Carretero
- Casar
- Cascon
- Casinelli
- Cassar
- Castelain
- Castellani
- Castro
- Caton
- Cattelain
- Caucheteux
- Cauchois
- Caullier
- Cavel
- Cazel
- Cazé
- Celik
- Celine
- Cendre
- Cerqueira
- Cery
- Cesselin
- Chabane
- Chabotier
- Chabour
- Chan
- Chapelle
- Chardon
- Charoze
- Charpentier
- Charpiot
- Chartrez
- Charuel
- Chaudesaigues
- Chazalon
- Chedeville
- Chehab
- Chendri
- Chenenaoui
- Chenevarin
- Cheron
- Chesnay
- Chevallier
- Chiahou
- Chimot
- Chlodnicki
- Choain
- Cholet
- Chombart Meuret
- Chouaibi
- Chovanec
- Chylka
- Cieslak
- Ciloche
- Cimen
- Claerbout
- Claret
- Clarot
- Clauet
- Claëys
- Clemensart
- Closset
- Clotte
- Coban
- Cochon
- Coez
- Cohardy
- Colas
- Colombelle
- Colombet
- Colot
- Colpart
- Comel
- Comte
- Conduto
- Cool
- Copeau
- Copin
- Corbel
- Corbineau
- Cornaille
- Cornut