Here’s a list of some of the boy dog names starting with B

. Buddy
. Baxter
. Bear
. Beau
. Bo
. Benny
. Bruce
. Bruno
. Bolt
. Blaze
. Bailey
. Boris
. Buzz
. Buster
. Bingo
. Bowie
. Brock
. Banks
. Baron
. Bode
. Butch
. Blitz
. Bjorn
. Bram
. Briggs
. Buzz
. Byron
. Bane
. Brick
. Baylor
. Bramble
. Blaine
. Brio
. Bash
. Buck
. Banjo
. Bandit
. Biff
. Burke
. Bentley
. Brady
. Brody
. Brent
. Bix
. Bilbo
. Brant
. Boomer
. Bodhi
. Bex
. Bison