Abbeville 80100 - Picardie
- Clery
- Cligniez
- Clolery
- Clonier
- Clouet
- Coadou
- Coaillet
- Coccimarket
- Coccu Leluer
- Cochet
- Cochez
- Cocquet
- Codron
- Coeuilte
- Coeuilte Thierry
- Cogoni
- Cohen
- Coin
- Coint
- Cointe
- Coiret
- Colas
- Colasse
- Colignon
- Collart
- Collette
- Colliau
- Colliez
- Cologne
- Colombe
- Coloos
- Colpaert
- Colson
- Combaud
- Commelin
- Comon
- Compain Lepretre
- Compans
- Condette
- Conilh
- Conjeaud
- Conreux
- Constan
- Conty
- Coolsaet
- Coquelle
- Coquerelle
- Coquet
- Corbeau
- Cordellier
- Cordier
- Cormon
- Corneille
- Cornet
- Cornote
- Cornuau
- Corond-maupin
- Corouge
- Coryn
- Cossard
- Costechareyre
- Cotel
- Cottenet
- Cottrant
- Cottret
- Couesme
- Couillet
- Coulibaly
- Coulombel Picard
- Coulonbel
- Couplet
- Courbillon
- Courbois
- Courcaut
- Courcelle
- Courche
- Courdavault
- Courjal
- Courtin Boulart
- Courtois-defosse
- Cousin
- Coussement
- Coussot
- Couto Rodrigues
- Couturier
- Coyard
- Crassous
- Crespel
- Crespo
- Creton
- Crevel
- Crimet
- Croissant
- Croizé
- Croquelois
- Croutte
- Crozat
- Cukier
- Cunin
- Cuny