Brest 29200 - Bretagne
- Cimia
- Cimier
- Cingal
- Cinglant
- Cinotti
- Cinqval
- Cioli
- Ciornei
- Cira Lo
- Cirefice
- Ciret
- Cisse Vasseur
- Citerin
- Citharel
- Civan
- Civanovic
- Civet
- Civier
- Ciza
- Clabecq
- Claeys
- Clair
- Clairac
- Claireaux
- Clairembault
- Clairet
- Claj
- Clajus
- Clamens
- Clapier
- Claro
- Clarot
- Classeau
- Claudet
- Claudin
- Claudon
- Clauss
- Claussmann
- Claustre
- Clauzon
- Claveau
- Claverie
- Clavier
- Clebar
- Cledes
- Clem
- Clemence
- Clemendot
- Clementi
- Clemont
- Clequin
- Clerc
- Clercq
- Cleret
- Clerice
- Clerin
- Clero
- Clery
- Cleuziou
- Clibert
- Cloarec Pelo
- Cloarec Riouat
- Clochon
- Cloisons
- Cloitre Caroff
- Clos
- Closier
- Clou
- Clouet
- Cloître
- Cloïtre
- Clps
- Cluzet de Henon
- Cléarc'h
- Clément
- Clémot
- Cléran
- Clévédé
- Cnudde
- Coacolou
- Coadour
- Coajou
- Coantiec
- Coat-malherbe
- Coatanea-gouachet
- Coatanhay
- Coatannoan
- Coatantiec
- Coatanéa
- Coathalem
- Coatrieux
- Coatéval
- Cobac
- Cobert
- Cobigo
- Cocaud
- Cochelin
- Cochen
- Cochereau
- Cochevelou