Blair
Blaise
Blake
Blanche
Blanco
Blaze
Blitzen
Blizzard
Blossom
Bluey
Bo
Bobo
Bogart
Bogey
Bomber
Bones
Bongo
Bonita
Bonnie
Bono
Bonsai
Bonzo
Booker
Boomerang
Borden
Boris
Bosch
Boss
Boswell
Bouncer
Brad
Bradley
Brady
Brains
Branch
Brando
Brandon
Brandy
Braxton
Brazil
Bree
Brenda
Brendan
Brett
Brewster
Brian
Brianna
Brice
Brie
Brigette