Saint-Quentin 02100 - Picardie
- Cloche
- Cloez
- Cloosen
- Clop
- Closset
- Clotail
- Clotuche
- Club de Bridge
- Clévenot
- Cmielewski
- Coatsaliou
- Cobleo
- Cobut
- Cochet-belmer
- Cocq Delhaye
- Cocquebert
- Cocu Droulin
- Coeugniet
- Coffinier
- Cohadon
- Cohardy
- Cohendet
- Cohoner
- Coiffure
- Coin
- Coirin
- Colange
- Colet
- Colev
- Colin
- Colin Rodriguez
- Collignon
- Collinet
- Colobert
- Colombier
- Colon
- Colot Boningue
- Colpaert
- Colras
- Combault
- Comble
- Comeau
- Comoditex
- Comon
- Conort
- Conrard
- Conraux
- Conseil
- Conte
- Convert
- Cool
- Coppens
- Coppitters
- Coquart
- Coquel
- Corand
- Corbery
- Corbineau
- Corduant Tacquet
- Cormont
- Cornelis
- Cornevin
- Correggia
- Corrier
- Corroyer
- Corsan
- Cosenza
- Cosier
- Cosperec
- Cospin
- Cossart
- Costa Salgado
- Costantini
- Cottart
- Cotte
- Cotteau
- Cottel
- Cottrais
- Cottret
- Couder
- Coume
- Coupra
- Coupé
- Courbet
- Courcelles
- Courdain
- Courrieu
- Coutelier
- Couty
- Covain
- Cramette
- Crapez
- Crepelliere
- Crepier
- Crespo
- Cressin
- Cressiot
- Crestani
- Crete
- Cretel