La Rochelle 17000 - Poitou-Charentes
- Clarke
- Claus
- Clavaud
- Claverie
- Clavery
- Clavier
- Claysac
- Clero
- Cligny
- Clinard
- Clisson
- Cluckers
- Cluzaud
- Clémenceau
- Cnaib
- Cobret
- Cochevelou
- Cognee
- Coheleach
- Collette
- Collier
- Collinet
- Collot
- Coloma
- Colombier
- Colot
- Colpin
- Colussi
- Combel
- Combot
- Come
- Comi
- Commenge
- Compagnon
- Conant
- Conde
- Conseil
- Constans
- Constant
- Constantin
- Conte
- Conti
- Convert
- Cooper
- Corbe
- Corbi
- Corbineau
- Cordazzo
- Cordon
- Corlosquet
- Corneau
- Corneloup
- Cornuau
- Corompt
- Corthier
- Corticchiato
- Cosse
- Cosseau
- Costeau
- Costes
- Cottennec
- Cottreau
- Coudert
- Coue
- Couffin
- Counil
- Coupez
- Courant
- Courapied
- Couraud
- Courbon
- Couret
- Courgeau
- Cournut
- Courtel
- Coussot
- Coustaud
- Coutand
- Coutau
- Couteleau
- Coutelou
- Couthouis
- Couzinet
- Cozic
- Crenon
- Cresp
- Crespel
- Crespin
- Cresson
- Creton
- Crica
- Croquin
- Cros
- Crosefinte
- Crousilliacq
- Crouton
- Cruaud
- Cruz
- Cueille
- Cugnot