Quéven 56530 - Bretagne
- Caignec
- Caillet
- Cailloch
- Caillon
- Cainjo
- Caire
- Camenen
- Candalh
- Cann
- Canno
- Cappoen
- Car
- Cargoet
- Cario
- Caro
- Caroff
- Caron
- Carpentieri
- Carpin
- Carqueville
- Carre
- Carrier
- Carriou
- Carval
- Casabianca
- Castelli
- Castelnau
- Catherine
- Caudan
- Celik
- Cevallos
- Chabrat
- Chagrot
- Chaillard
- Champion
- Chapelain
- Chapet
- Chapon
- Chapron
- Chardon
- Chastel
- Chataigner
- Chauveau
- Checco
- Chemille
- Chemillé
- Chenailler
- Chenic
- Cherot
- Cherrib
- Chevris
- Chevrollier
- Christien
- Christophe
- Ciret
- Clairenbeaud
- Claquin
- Claudepierre
- Claudic
- Cleach
- Clech
- Clemence
- Clemot
- Clenet
- Clero
- Cloirec
- Cobigo
- Cochard
- Coffignier
- Coint
- Cojan
- Colin
- Colliguer Marie
- Collober
- Combette
- Comelet
- Condemine
- Congratel
- Constantin
- Construction
- Conti
- Coquelin
- Coquilleau
- Corbou
- Cordonnier
- Corfmat
- Cornet
- Cornic
- Cornillet
- Cornou
- Cornu
- Cornuel
- Corve
- Cosqueric
- Costaoec
- Cottin
- Coudrais
- Courric
- Courtaud
- Courtet