Rennes 35000 - Bretagne
- Boeffard
- Boheas
- Boina
- Boinet
- Bois
- Boishu
- Boisnard
- Boisneault
- Boissy
- Boiteau
- Boixiere
- Boko
- Bonjour
- Bonnard
- Bonnaud
- Bonnechere
- Bonnel
- Boquet
- Bordes
- Borgne
- Bornais
- Bosc
- Bosser
- Botherel
- Bothorel
- Boucard
- Boucherie
- Boudry
- Bouetel
- Bouffort
- Bougault
- Boulic
- Boumaraf
- Bour
- Bourgeault
- Bourgogne
- Boutet
- Bouttier
- Bouziani
- Brandhonneur
- Brebion
- Briant
- Briat
- Bricaud
- Brient
- Brohan
- Brossais
- Brosseau
- Brousse
- Brown
- Bruchet
- Brunard
- Brune
- Buard
- Budor
- Buffet
- Bui
- Buisard
- Bulourde
- Bunel
- Buot
- Buquen
- Burban
- Burgaud
- Burin
- Burklin
- Burot
- Cade
- Cahu
- Caillault
- Caille
- Caillot
- Calmes
- Calohard
- Campion
- Canevet
- Carbonnel
- Caret
- Carreau
- Cassard
- Castelain
- Caudal
- Caudan
- Cellier
- Celton
- Cetinkaya
- Cevaer
- Cevik
- Chapdelaine
- Chapelain
- Chaplais
- Charil
- Charon
- Chartrain
- Chaudet
- Chaussavoine
- Chausse
- Chave
- Chedemail
- Cheneau