Blennophobia Fear of slime.
Bloodhoundphobia Fear of bloodhounds . (branch of Zoophobia)
Bloonopygrosoamynaphobia Fear of bloons tower defense.
Blowerpeelphobia Fear of sex dolls.
Bluebirdphobia Fear of bluebirds. (branch of Aerozoophobia / Zoophobia)
Bluzzedrallphobia Fear of gore.
BMWphobia Fear of BMW.
Bobigerphobia Fear of Bob Iger.
Bodenstandophobia Fear of grandfather clocks
Bogyphobia Fear of bogeys or the bogeyman.
Boitanophobia Fear of being forced to watch competitive male figure skating.
Boitephobia Fear of clubs.
Boitepigkouinophobia Fear of club penguin .
Bokaroidophobia Fear of Vocaloid songs, Hatsune Miku and/or Vocaloids in general.
Bolshephobia Fear of Bolsheviks.
Bonockophobia Fear of skeleton keys.
Booberoophobia Fear of Boo Berry . (branch of Kyrofelonoshophobia)
Boogieboardphobia Fear of boogieboards.
Boomophobia Fear of the word 'boomer'.
Botanophobia Fear of plants.
Boulntozaphobia Fear of bulldozers . (branch of Ochophobia)
Bounophobia Fear of mountains . (branch of Agoraphobia)
Bovinophobia Fear of cattle . (branch of Agerozoophobia / Domestozoophobia / Zoophobia)
Bowerphobia Fear of bowers.
Bowlingphobia Fear of bowling . (branch of Athlemaphobia)
Bowphobia Fear of bows.
Bracesphobia Fear of dental braces.
Brawlursinophobia Fear of bear wrestling . (branch of Athlemaphobia)
Braziliaphobia Fear of Brazilians.
Briefshiephobia Fear of secret documents.
Bromidrophobia Fear of body smells.
Bromidrosiphobia Fear of body smells.
Brontophobia Fear of thunder and lightning.
Brontosaurusphobia Fear of brontosauruses . (branch of Zoophobia)
Bronyphobia Fear of bronies.
Browniephobia Fear of brownies . (branch of Cibophobia)
Brownoutphobia Fear of brownout.
Brugnophobia Fear of icemakers.
Bufonophobia Fear of toads.
Bufuphobia Fear of your uncle that is your father's brother.