Pluguffan 29700 - Bretagne
- Berta
- Bertet
- Berthelot
- Besnard
- Betrom
- Beyou
- Bihannic
- Bilien
- Billon
- Bithorel
- Bleuzen
- Bobale
- Bodiou
- Bodivit
- Bodénan
- Boedec
- Boeri
- Boisseau
- Boisset
- Boittout
- Bonizec
- Bonjean
- Bonnaïs
- Bonnel
- Boubéchiche
- Boucher
- Boudard
- Bouhamid
- Bouhet
- Boulestreau
- Boulland
- Bourbigot
- Bourbigot-feunteun
- Bourdon
- Bourgin
- Bourveau
- Boury
- Bouvy
- Boëdec
- Brelivet
- Breton
- Briand
- Briclot
- Brigand
- Bris
- Brochen
- Brochet
- Brochot
- Brule
- Brusadin
- Bréhélin
- Brélivet
- Buge
- Cabaret
- Cabellan
- Cabillic
- Cabon
- Cadet
- Cado
- Calvez
- Campion
- Carabin
- Carichon
- Carn
- Caro
- Caroff
- Caron
- Carval
- Caubet
- Caudron
- Cavellat
- Cavellec
- Cellier
- Chaffre
- Chakiri
- Chaline
- Chanteloup
- Chesnais
- Chretien
- Christien
- Clech
- Clorennec
- Coat
- Coetmen
- Coeur
- Coignard
- Collin
- Coppenet
- Coquemont
- Coquil
- Corai
- Corbou
- Cordroch
- Cormery
- Cornec Dominique
- Cornic
- Corolleur
- Corre
- Coruble
- Cosmao

