Rennes 35000 - Bretagne
- Boileau
- Boinot
- Boisgeraux
- Boisgontier
- Boishu
- Boisset
- Boittin
- Bolon
- Bomal
- Bondu
- Bonnard
- Bonnaud
- Bonnier
- Boquet
- Bosc
- Bosser
- Botherel
- Boudjema
- Bougeant
- Bougerie
- Bouillon
- Bouju
- Boulain
- Bouleau
- Boulic
- Bouliou
- Boumaraf
- Boure
- Bourge
- Bourgogne
- Bourreau
- Boury
- Boussard
- Bousseau
- Bouton
- Bouvard
- Bouzidi
- Boué
- Brassier
- Brebion
- Brechet
- Brehe
- Brenier
- Brichet
- Briens
- Brieuc
- Brizard
- Brière
- Brohan
- Brousse
- Bru
- Brugalle
- Buchon
- Burgot
- Burin
- Burnel
- Buron
- Bussard
- Butault
- Bénis
- Cabot
- Cadalen
- Cado
- Cadre
- Caillarec
- Caillibot
- Carduner
- Carissan
- Carlo
- Carlot
- Carree
- Carro
- Carsin
- Casanova
- Cauchy
- Caudal
- Cavan
- Cave
- Chagnon
- Chancerel
- Chanfi
- Chang
- Chaplain
- Chaput
- Chardron
- Chartois
- Charton
- Chartrain
- Charuel
- Chatelain
- Chatelet
- Chaumet
- Chausse
- Chenede
- Chevance
- Cheve
- Chevillard
- Chibaco
- Chicot
- Christien