Treffiagat 29730 - Bretagne
- Barthélémy
- Beaufils
- Beaupere
- Beauvais
- Bechennec
- Bellart
- Bellec
- Belpomme
- Benard
- Beout
- Bercelay
- Bernardin
- Bessond
- Biard
- Bidarh
- Bilien
- Billien
- Biotti
- Blanc
- Blanke
- Bleriot
- Bocher
- Boedec
- Boni
- Bonin
- Bonnard
- Bonnez
- Bossennec
- Bosser
- Boudjema
- Bougueon
- Bouheraoua
- Boulmier
- Boulo
- Bourgeret
- Bouricot
- Boussac
- Bouville
- Brabant
- Bridoux
- Briec
- Brisset
- Buannic
- Budinot
- Cabillic
- Caillet
- Calabrese
- Calvez
- Caoudal
- Caradec
- Carluer
- Carnec
- Caroff
- Carriou
- Carron
- Carrot
- Carthieux
- Carton
- Cazorla
- Chalain
- Champin
- Chauffour
- Clement
- Cloarec
- Coetmen
- Collin
- Core
- Corre
- Costentin
- Cotonea
- Cotonéa
- Cottin
- Coulouarn
- Coupa
- Couttier
- Couturier
- Couvignou
- Cozic
- Craff
- Crapet
- Credou
- Crepin
- Croullière
- Cuny
- Daniel Guichard
- Daniélou
- de Marco
- Dechanet
- Delauney
- Delaunoy
- Delille
- Delon Leroux
- Demuylder
- Destouches
- Dieppedalle
- Domine
- Donnart
- Doret
- Dorland
- Draoulec
