Brest 29200 - Bretagne
- Bertholom
- Besin
- Bessam
- Bianeis
- Biannic
- Billy
- Bittard
- Blaise
- Blandin
- Blesle
- Blondel
- Bodenez
- Bodiger
- Boece
- Boedec
- Boleat
- Boniou
- Bordier
- Boscher
- Bot
- Botquelen
- Bouchez
- Bouchon
- Bougaran
- Bouin
- Bourdier
- Bourges
- Bourlès
- Bouteloup
- Boutet
- Bouzeloc
- Brandenburg
- Braun
- Brecq
- Brenneur
- Brenterch
- Bresson
- Briere
- Broustal
- Brunel
- Brunou
- Brélivet
- Brénéol
- Buguel
- Buors
- Burgaud
- Busson
- Buzare
- Cadet
- Cadoret
- Camio
- Can
- Canadas
- Candotti
- Carrer
- Carriere
- Carvalho
- Cascales
- Cassi
- Castro
- Catherine
- Caurant
- Cavan
- Cazes
- Caër
- Cessou
- Chacun
- Chaffotec
- Chapelain
- Chapin
- Chappe
- Chapuis
- Chatelin
- Chaussec
- Chauvet
- Cherrier
- Chesnais
- Chrabak
- Christmann
- Claude
- Cleguer
- Clorennec
- Clugery
- Coatmeur
- Coatpehen
- Coeffeur
- Cojan
- Cojean
- Collen
- Collette
- Collinet
- Collomb
- Coquemont
- Corbeau
- Corcuff
- Cornily
- Correia
- Cortes
- Costard
- Cotonea