Saint-Quentin 02100 - Picardie
- Casier
- Casinelli
- Cassar
- Castelain
- Castellani
- Catillon
- Caton
- Cattelain
- Caucheteux
- Cauchois
- Cazel
- Cazé
- Celik
- Cendre
- Cerqueira
- Cesselin
- Chabotier
- Chabour
- Champrenaut
- Chapelle
- Chardon
- Charoze
- Charpentier
- Charpiot
- Chartrez
- Charuel
- Chaudesaigues
- Chavanne
- Chavet
- Chazalon
- Chedeville
- Chehab
- Chendri
- Chenenaoui
- Chenevarin
- Cheron
- Chevallier
- Chevrin
- Chlodnicki
- Choain
- Chombart Meuret
- Chovanec
- Christine
- Christophe
- Chylka
- Cieslak
- Cimen
- Claerbout
- Claret
- Clarot
- Clauet
- Claëys
- Clemensart
- Clement Linard
- Closset
- Clotte
- Coban
- Cochon
- Coez
- Coffin
- Cohardy
- Colas
- Collin
- Colombelle
- Colombet
- Colot
- Colpart
- Comel
- Comte
- Conduto
- Cool
- Copeau
- Copin
- Corbel
- Corbineau
- Corbizet
- Cornaille
- Cornut
- Costa
- Cottart
- Cottel
- Cottenest
- Cottret
- Cougneau
- Coume
- Coupain
- Coupaye
- Courboin
- Coutellier
- Couture
- Couturier
- Couvelard
- Couvelart
- Covin
- Cozette
- Crapart
- Croise
- Croulard
- Cuisinier
- Cuisset
