La Rochelle 17000 - Poitou-Charentes
- Clere
- Clergeau
- Clero
- Clisson
- Cluckers
- Cluzaud
- Clémenceau
- Cnaib
- Cochard
- Cochin
- Cognee
- Cognet
- Cohades
- Coheleach
- Coindreau
- Colau
- Colignon
- Collier
- Collot
- Coloma
- Colombier
- Colot
- Colussi
- Combel
- Come
- Commenge
- Commer
- Compagnon
- Conant
- Conde
- Condemine
- Conseil
- Constant
- Conte
- Conti
- Contu
- Convert
- Corbi
- Corbineau
- Corby
- Cordazzo
- Cordelle
- Cordon
- Cormerais
- Corneau
- Cornec
- Cornuau
- Corompt
- Corthier
- Corticchiato
- Cossard
- Cosse
- Cosseau
- Cosset
- Cossevin
- Costeau
- Costes
- Cotrez
- Cottreau
- Couffin
- Coulongeat
- Coupez
- Courant
- Couraud
- Courbon
- Couret
- Courgeau
- Cournut
- Courtel
- Courtois
- Courtot
- Courty
- Cousseau
- Cousson
- Coutand
- Coutau
- Coutaux
- Couteleau
- Couthouis
- Couzinet
- Cozic
- Cozlin
- Cremey
- Cremier
- Crepin
- Cresp
- Crespel
- Crespin
- Creton
- Crisafi
- Croix
- Croizé
- Croquin
- Cros
- Crouton
- Cruaud
- Cruchet
- Cruette
- Cruz
- Cueille