Lorient 56100 - Bretagne
- Bourdon
- Bourg
- Bourgault
- Bourriquen
- Bourse
- Boussaid
- Bouteiller
- Boutet
- Bouyat
- Boyard
- Boëdec
- Brahim
- Branchoux
- Brandily
- Braquehais
- Bregent
- Brenner
- Breut
- Brezulier
- Brianceau
- Bricchi
- Brichard
- Briere
- Briffaut
- Brinquin
- Briquet
- Bris
- Brisson
- Brivoal
- Brossard
- Brossaud
- Brossier
- Brouard
- Broudeur
- Bruelle
- Bruhat
- Brunot
- Bruschi
- Bucher
- Budon
- Buisson
- Bure
- Burlot
- Busson
- Busuttil
- Bé
- Bélégou
- Cacheux
- Cadou
- Cadudal
- Caheric
- Caillet
- Cailleux
- Caillon
- Calhan
- Calis
- Calloc'h
- Calonec
- Calve
- Cam
- Campagne
- Camps
- Canado
- Cany
- Capelle
- Capillon
- Capon
- Capp
- Cappe
- Cardiet
- Cardonne
- Carel
- Careo
- Carer
- Cargouet
- Carman
- Carnec
- Caro
- Carrer
- Carrier
- Cartegnies
- Carvalho
- Casseron
- Castelain
- Castot
- Castro
- Catherine-joffrion
- Caurant
- Cavan
- Chabbert
- Chagnon
- Chagrot
- Chahboun
- Chani
- Chapel
- Chapelot
- Charbonneau
- Charbonnier
- Chardonnet
- Chardoux