- Cadet
- Cado
- Cadoc
- Cadou
- Cadouan
- Cadoud
- Caduan
- Cadvaladyr
- Cadwan
- Candide
- Cano
- Caradec
- Carantec
- Cassien
- Cast
- Catnou
- Catoc
- Catvan
- Catwallon
- Cava
- Cazen
- Ceciline
- Cerotte
-
|
- Chanig
- Charles
- Charlez
- Charleza
- Charlig
- Charlou
- Cheun
- Chreirbia
- Christine
- Cieux
- Ciferien
- Clair
- Claoue
- Claudic
- Cleden
- Cleder
- Clervie
- Clotilde
- Cogan
- Collen
- Colman
- Colodan
- Colodoc
-
|
- Colomban
- Commean
- Compar
- Conan
- Condelu
- Congar
- Conhoyarn
- Connan
- Conoc
- Conog
- Conogan
- Conval
- Convarc'h
- Convel
- Convelen
- Convoyon
- Corbase
- Corentin
- Cornelie
- Cornely
- Couleo
- Couleth
- Coulitz
-
|
- Coulm
- Coum
- Cov
- Crervia
- Crevan
- Cridan
- Cristin
- Cuoc
- Cutburge
- Cuvan
|