Bannalec 29380 - Bretagne
- Bardouil
- Baron
- Barrault
- Barthelemy
- Base
- Baucher
- Baudemont
- Bauduin
- Baverel
- Beau de Kerguern
- Beaufils
- Bech
- Bellance
- Bellec
- Bellotte
- Belly
- Ben
- Benichou
- Berdkane
- Bergeron
- Bernard-peres
- Berrou
- Berthois
- Bessaguet
- Beufé
- Bianchi
- Biandet
- Bigot
- Bizeul
- Bizien
- Blain
- Blanchard
- Bléogat
- Boedec
- Boine
- Boinet
- Bolloc'h
- Bonal
- Bondot
- Bonnabesse
- Boquere
- Boropert
- Bouchaud
- Boucher
- Boudeville
- Bouec
- Bougdal
- Boulben
- Bouny
- Bour
- Bourbigot
- Bourc'his
- Bourgoin
- Bouron
- Boustouhan
- Boutet
- Bouvet
- Boyere
- Brabant
- Brault
- Brenneval
- Brethenoux
- Breton
- Brien
- Brot
- Brulebois
- Bruna
- Bruneau
- Brunet
- Brunou
- Burguière
- Burkarth
- Bénéat
- Béraut
- Béréziat
- Cahic
- Callonnec
- Calvar
- Cam
- Cann
- Canne
- Capitaine
- Carcentier
- Cardiec
- Cardiet
- Carpentier
- Carre
- Carrer
- Carro
- Carval
- Castanon
- Cella
- Cerf
- Chamot
- Charles
- Charlot
- Chatal
- Chaumont
- Chenal
- Chery

