Cat Names
Below you find all the cat names starting with a B.
- B-52
- B-dee
- B-Girl
- B-Pal
- B.A.
- B.A. (Bad Attitude!)
- B.A. Barrakus
- B.B.
- B.B. Kat
- B.B. King
- B.B. Kingcat
- B.C.
- B.C. ("Buttercup")
- B.C. (Big Cat)
- B.D. ("Black Douglas", after the feisty Scottish warrior)
- B.D. (Bad Boy)
- B.D. (Brain-Dead)
- B.D.K. ("Buddy D. Katt")
- B.e.r.u. (Banana Emergency Recovery Unit, also Luke Skywalkers aunt and an island in the Pacific Ocean)
- B.G.
- B.J.
- B.J. (Tom Robbin's character Bonanza Jellybean)
- B.K.
- B.M.W. (Black, Mahogany & White)
- B.O.T. (Big Old Tom)
- B.u.d. ("Big Ugly and Dumb")
- B.W.
- B.W. (Black White)
- BA
- Ba Shaleek Alshain
- Ba' Boy
- Baba
- Babaganoush
- Babalou (after the tv show)
- Babar
- Babbaboombanorsh
- Babbit
- Babbitt
- Babe
- Babee
- Babers
- Babester
- Babette
- Babirusa
- Baboo
- Baboon Butt
- Babricus
- Babs (after Barbra Streisand)
- Babsy
- Babuji Braveheart
- Babur
- Babushka
- Baby
- Baby Bear
- Baby Beauty
- Baby Boogens
- Baby Boy
- Baby Bug
- Baby Butterscotch
- Baby Cakes
- Baby Cat
- Baby Doe (sort of a Jane Doe thang)
- Baby Dog
- Baby Doll
- Baby Doo II
- Baby Dumpling
- Baby Girl
- Baby Grey.
- Baby Guiness
- Baby Head
- Baby Jane
- Baby Jesus
- Baby Ki'n
- Baby Kitten
- Baby Kitty
- Baby Kitty And Trouble
- Baby Mimi
- Baby Nesbit
- Baby Ruth
- Baby Spice
- Baby Weeeeeeezel the little Frrrrrench Chat
- Baby-Boogs
- Baby-Doll
- Baby-Doo
- Baby-Face
- Baby-Kitty
- Baby-Roca (named after two favorite candies, Baby Ruth and Almond Roca)
- Babycakes
- Babycat
- Babydoll
- Babyface
- Babygray
- Babykins
- Babyman
- Babyshoes
- Babytat
- Bacabs (Maya mythology: the canopic gods)
- Bacall
- Bacardi
- Baccarat
- Bacchos
- Bacchus
- Bacci (pronounced: Baa-chie; Italian for "kisses")
- Bach
- Baci
- Back
- Backstreet Blues
- Backstreet Kitty
- Bacon
- Bad Bad Boy
- Bad Bad Leroy Brown
- Bad Bess
- Bad Cat
- Bad Kitty
- Bad Luck
- Bada
- Badger
- Badjun
- Badlands
- Badness
- BadShad
- Baeki
- Bafftub
- Bag
- Bag Lady
- Bag O'Cat
- Bagel
- Baggage
- Baggi pants
- Baggins
- Baggy
- Bagheera
- Baghera (black panther in "The Jungle Book")
- Baghreeah
- Bagira
- Bagoas
- Bagpuss
- Baguette
- Bahama Mama
- Bailey
- Bailey Emerald Isle
- Bailey's Irish Cream (50% sweetness and 50% nuts)
- Bain
- Bainbridge
- Baja
- Bajan
- Baka (Japanese insult, "idiot", "moron", "fool", "dimwit")
- Baka-Neko
- Baker
- Baker (after the mountain in North Carolina, USA)
- Baksheesh (means "bribe" in Arabic)
- Balaena
- Balbina
- Balboa
- Balder (Viking mythology: The God of light)
- Balderdash
- Baldric
- Baldrick
- Baldur
- Baldur The Fairly Slow
- Baldwin
- Baldy
- Bali
- Balik
- Balin
- Balki
- Ballbearing Mouse Trap
- Ballerina
- Ballou
- Baloo
- Balraj
- Balthazar
- Balzac
- Bam
- Bam-Bam
- Bama
- Bambalona
- Bambam
- Bambi
- Bambina
- Bambino
- Bamboo
- Bamboozler
- Bams
- Bamse
- Banana Cabana
- Banana Peel
- Band-Aid
- Bandanna
- Bandit
- Bandito
- Bang (reference to the Unix ! symbol)
- Bangladesh
- Bangle
- Bangui (capital of Central African Republic)
- Banjo
- Bannana Fanna
- Bannenay
- Banner
- Banquet
- Banquo
- Banshee
- Banzai
- Bar Room
- Baracca
- Barbara
- Barbara Bush
- Barbarella (after the Jane Fonda movie)
- Barbarian
- Barbarino
- Barbi (after Barbara Streisand)
- Barbossa
- Barclay
- Bardee
- Barfly
- Barfolemeow
- Bariska
- Barkley
- Barky
- Barley
- Barley-Boo
- Barn Cat
- Barnabas (so named for Barnabas Collins of Dark Shadows)
- Barnabus (after the vampire Barnabus Collins)
- Barnaby
- Barnaby Jones
- Barnacle
- Barnacle Bill (Barney)
- Barney
- Barney Cat
- Barney Giggles
- Barney Googles
- Barney Munsch O'Malley
- Baron
- Baron Mungojerrie Chaia Reisinho von Rumplestiltzkin-Sylvester
- Baroque
- Barou
- Barrett
- Barretta
- Barrington
- Barron
- Bart
- Bart Maverick
- Bartholimew
- Bartholomew
- Bartleby
- Bartlee
- Bartles
- Bartles and James
- Bartlett
- Bartleyboo
- Barton
- Bas (Dutch name)
- Base
- Baseball
- Basel
- Bashan
- Bashful
- Bashfuly
- Basia
- Basic
- Basil
- Basil Ratbones
- Basket O'Cat
- Basket-case
- Baskin-Robbins
- Basque
- Basquiat
- Bass
- Bast
- Bastet
- Bastet (Egyptian cat-goddess)
- Bastion
- Bastu
- Bat Baby
- Bat Cat
- Bat Face
- Bat Kitty
- Batal (Female Arabian name, meaning "hero")
- Batale (Female Arabian name, meaning "heroine")
- Batface
- Bathilda Christine
- Bathsheba
- Batly
- Batman
- Batman And Robin
- Battina
- Battlecat
- Battlescar Gallacticat
- Batty
- Batty Cat
- Batwings
- Baudelaire
- Baur (after the inline skates)
- Bauzeur
- Bawdy
- Baxter
- Baxter (after Mount Katahdin Baxter State Park, Piscataquis county, Maine, USA)
- Bayda (Female Arabian name, meaning "white")
- Bayley
- Bayou
- Baz (from the longest name in the Bible, Maher-shalal-hash-baz)
- Bazoo (French for "Old one")
- Bazooka
- BB
- BB Baby
- Be Be
- Be'Be'
- Bea
- Beach
- Beachbaby
- Beachcomber
- Beached Whale
- Beachnut
- Beachwood
- Beacon
- Beak
- Beaker
- Bealzebub
- Beamer
- Beamer (BMW)
- Beamish
- Bean
- Beaner Leener
- Beanie
- Beanie Baby
- Beanor
- Beans
- Bear
- Bear Bear
- Bear Cat
- Bear of Very Little Brain
- Bear-Bear
- Bear-we-got(ski)
- Beard
- Beardpuller
- Beardums
- Beardy
- Bearlock Holmes
- Bearly
- Bearly-there
- Bearton
- Beashue
- Beast
- Beastcat
- Beastie
- Beastie Boy
- Beatrice
- Beattlejuice
- Beau
- Beau Cat
- Beau-lander
- Beau-man
- BeauCat
- Beaucoup
- Beaudreaux
- Beaufort
- Beauragard
- Beauregard
- Beautiful
- Beautiful Blue Eyes
- Beautty
- Beauty
- Beauty School Drop-Out
- Beauty the Cat
- Beaver Sue
- Beavis
- Beavis And Butthead
- Bebe
- Bebee
- Bebert
- Bebo
- Bechamel
- Becka
- Beckett
- Beckett's Lady Ruth
- Beckham
- Becky
- Bedford
- Bedouin
- Bee-Bul
- Beebee
- Beebop
- Beebs
- Beebus
- Beecham
- Beechnut
- Beedo
- Beefcake
- Beefeater
- Beefy
- Beefy Mae
- Beeju
- Beelzebub
- Beelzebub (Bee EL zah BUB)
- Beenie
- Beentsy
- Beep You
- Beep-Beep
- Beeper
- Beeps
- Beer
- Beertje (Dutch for "little bear")
- Bees
- Beeswax
- Beethoven
- Beetle
- Beetle E. Bailey
- Beetlejuice
- Beeyoootiful
- Beez Louise
- Beezer
- Beezlebub
- Beezo
- Beggin' Earl Jackson
- Begonia
- Behemoth
- Behr
- Beija (Portugese for "kiss")
- Bel-Ami
- Bela (named after Bela Lugosi and pronounced: BAY-la)
- Bela Lugosi
- Belabella
- Belfry
- Belgarath the Sorcerer
- Belinda
- Belka
- Bell
- Bella
- Bella Mia
- Belladonna
- Bellatrix
- Bellboy
- Belle
- Belle Poitrine (French for "beautiful chest") (after the character in the musical "Little Me")
- Belle Watling
- Belle-Belle
- Bellina
- Bellissima
- Bellissimo
- Bello (Spanisch for "Beautiful")
- Bells
- Belly Boy
- Belly Button
- Belly Girl
- Belly Lint
- Belochka
- Beloved
- Beluga
- Belvedere
- Belvedere (after a freeway exit in Marin County, CA)
- Belvy
- Bemol
- Ben
- Ben And Jerry
- Ben Her
- Ben Hur
- Benazir
- Benedick
- Benedict
- Benedict Arnold
- Benet
- Bengal
- Bengali
- Benito (after Benito Mussolini)
- Benjamin
- Benjamin Franklin Purrs
- Benjamin Norman Bates
- Benji (after the movie)
- Benkelman (after the town in Nebraska, USA)
- Bennett
- Benni
- Bennie
- Bennington
- Benny
- Benny von Munchkin
- Bensien
- Benson
- Bentley
- Bently
- Benz
- Benz-a-licker
- Benzo
- Benzy
- Beowoof
- Beowulf
- Beppie
- Bequest
- Beraal
- Berber
- Beret
- Beretta (after the firearm)
- Bergen
- Berkeley
- Berlin
- Berma
- Bern-stein
- Bernadette
- Bernard
- Bernice
- Bernie
- Bernini
- Berry
- Berry Cute
- Bert
- Berta
- Bertha
- Bertie
- Besmyertnik
- Bess
- Bessemer
- Besseya
- Besseya The Fearless
- Bessie
- Best
- Bestling
- Beta
- Betelguece
- Beth
- Beth Anne
- Beth Gatlin
- Bethany
- Bethina (seal point Himi)
- Betsy
- Betsy Rose
- Bette
- Bette Davis
- Bette Davis Eyes
- Bettilla
- Bettina
- Betty
- Betty Boop
- Betty Kitty
- Betty Poop
- Beulah
- Beverly
- Bewitched
- Beyonce
- Bialy
- Bianca
- Bianco
- Bibbers
- Bibby
- Bibi
- Bibibig
- Bibs
- Bicki
- Biddy
- Bierstadt
- Biff
- Big
- Big Abe
- Big Baby
- Big Bad Baby Beau
- Big Bad Baby Bentley Billy Joe Bob
- Big Bag
- Big Bear
- Big Beau
- Big Ben
- Big Black
- Big Boo
- Big Boy
- Big Cat
- Big Dipper
- Big Dog
- Big Fat Monster Cat
- Big Fat Yellow Cat aka Ringo
- Big Foot
- Big Galoot
- Big Girl
- Big Guy
- Big Hairy Cat
- Big Headed Galoot
- Big Kitty
- Big Kitty Pye
- Big Lummox
- Big Mama
- Big Min
- Big Mom
- Big Momma Kitty
- Big Precious
- Big Puss
- Big Red
- Big Runt
- Big Skinny Cat
- Big Time
- Big White Boy
- Big White Boy Kitty
- Big Yellow Cat
- Big-Baby Blubber-Whimp
- Bigboy
- Bigface
- Bigfoot
- Bigfoot The Brain Dead Kitty
- Bigga Boy
- Bigger
- Biggie Boy
- Biggles
- Bigglesworth
- Bigguy
- Bigkitty
- Bigmac
- BigMouth
- Bijou (French for "jewel")
- Biker
- Biker Coon
- Biko
- Bikuchi ("chikubi" backwards, Japanese for "Nipple")
- Bilbo
- Bilbo Baggins
- Bill
- Bill (comic-strip Bill the Cat)
- Bill Howard
- Bill The Hell Cat
- Bill Widders
- Billabong
- Billbull
- Billie
- Billie Jo
- Billy
- Billy Boy
- Billy Button
- Billy Jack
- Billy the Kit
- Billyboy
- Bilqna
- Bimbo
- Bimini
- Bina
- Binbin
- Bindi Sue (after the daughter of Steve "The Crocodile Hunter" Irwin)
- Bing
- Bing and Bong
- Bing Crosby
- Bing-ben
- Bingo
- Bink
- Binki
- Binkley
- Binks (black cat in the movie Hocus Pocus)
- Binky
- Bintje
- Binx
- Binx (black cat in the movie Hocus Pocus)
- Bira (after Prince Birabongse Bhanutej Bhanubandh, member of Siam's royal family)
- Bird
- Birdy
- Birgitte
- Birka (after the ancient Viking trading center on the isle of Björkö)
- Birthday
- Bis
- Biscotti
- Biscuit
- Biscuit The Neversick
- Bishop
- Bisket
- Bismarck
- Bisou
- Bisou (French for "peck on the cheek")
- Bister
- Bistro
- Bit
- Bitch
- Bitch Ass
- Bitchie-Vitchie
- Bitey
- Bitney
- Bits
- Bitsey
- Bitsy
- Bitsy Pookums
- Bitter juice
- Bitters
- Bitty
- Bitty-bit
- Bitu
- Bixbee Tortise Shell
- Bizkit
- Bizzy
- BJ
- Bj
- Bjork
- Bjte Noir
- Black
- Black A
- Black Beauty
- Black Bomber
- Black Boy
- Black Cat
- Black Elk (named for the Lakota Holy Man)
- Black Eyes
- Black Foot
- Black Imp
- Black Jack
- Black Kitten
- Black Kitty
- Black Kitty Cat
- Black Label
- Black Lady
- Black Magic Secret
- Black Magic Woman
- Black Moustache
- Black Nettik
- Black Onyx
- Black Pearl
- Black Peter
- Black Sambuca
- Black Spot
- Black Stuff
- Black Tabby
- Black Velvet
- Blackberry
- Blackbird
- Blackey Blue Eyes
- Blackie
- Blackitty
- Blackjack
- Blackman
- Blackone
- Blackstein
- Blacky
- Blade
- Blake
- Blanca
- Blanche
- Blanche the Cat
- Blarney
- Blaster
- Blaxie
- Blaze
- Blaze Starr Bleach
- Blea
- Bleach
- Blender Guts
- Bleu
- Bleu Cheez
- Blight
- Blimp
- Blimpette
- Blimpie
- Blimpy
- Blinken
- Blinky
- Blinx
- Blip
- Blitzen
- Blizzard
- Blob Cat
- Blobcat
- Blonde Bombshell
- Blondie
- Blooper
- Blosom
- Blossom
- Blot
- Blotch
- Blotto
- Blu
- Blubber
- Blue
- Blue Baby
- Blue Bell
- Blue Bijou
- Blue Boy
- Blue Comet
- Blue Danube
- Blue Emerald
- Blue Eyes
- Blue Fuzzy Tiger
- Blue Light Special
- Blue Monday
- Blue Money
- Blue Passion
- Blue Rocket
- Blue Sapphire
- Blue's Baby
- Blue's Baby Beatrice
- Bluebeard
- BlueBelle
- Blueberry
- Blueberry Muffin
- Blueberry Peach Parfait
- Bluella
- Blueprint
- Blues
- Bluestar (cat from the "Warriors" bookseries)
- Bluey
- Blunder
- Blur
- Blurry Cat
- Blurry Kitty
- Blurt
- Bluster
- Bluto
- Blynken
- Bo
- Bo Bo
- Bo Didley
- Bo Peep
- Bo-head
- Boa
- Boadecia
- Boar Deaux
- Boaz
- Bob
- Bob Dole
- Bobbers
- Bobbie
- Bobbie Joe
- Bobbin
- Bobbobmicbobob
- Bobbos
- Bobby
- Bobby Brown
- Bobby Socks
- Bobcat
- Bobin
- Bobinski
- Bobo
- Boca
- Boccaccio
- Bocelli
- Bocephus
- Bocephus Twilliger
- Bodacious
- Bodeer
- Bodhi
- Bodhi Or Bodhisattva
- Bodi
- Bodie
- Body
- Boffin
- Bogart
- Bogart Or Bogie
- Bogey
- Bogeyman
- Boginator
- Bogus
- Bogus Kitty
- Bohboh
- Bohemian
- Bohumil
- Boi
- Boiler (after the Purdue Boilermakers football team)
- Boingo
- Boise
- Bojangles
- Bojo
- Bolero
- Boll Weevil
- Bolla
- Bologna
- Bomart
- Bomba
- Bombalurina (From "CATS")
- Bombastic
- Bomber
- Bombshell
- Bon Bon
- Bonanza
- Bonbon
- Bond
- Bond, James Bond
- Bondi
- Bondo
- Bone
- BoneCrusher
- BoneHead
- Bonehead
- Boneless
- Bones
- Bones (after doctor in "Star Trek")
- Boneta
- Boney Butt
- Bonfire
- Bong
- Bongie
- Bongo
- Bonita
- Bonkers
- Bonkers Justice
- Bonnie
- Bonnie And Clyde
- Bonnie Blue
- Bonnie Mewman
- Bonny/Bonnie
- Bono
- Bonquers
- Bonsai
- Bonstance
- Bonstancia
- Bony
- Bonz
- Bonza
- Bonzai
- Bonzo
- Bonzo Jolson
- Boo
- Boo Bear
- Boo Boo
- Boo Boo Kitty
- Boo Boo Magoo
- Boo Boo Tannenbaum (after a J.D. Salinger character)
- Boo Kitty
- Boo-bear
- Boo-Boo
- Boo-Boo Kitty
- Boo-ful (as in "beautiful")
- Boo-kitty
- Boo-pish
- Boo-Who?
- Boober
- BooBoo
- Boobool
- Boochie
- Boodle
- Boodle-Loaf
- Boodle-Ookins
- Boodles
- Boofer
- Boog
- Boog-Boogs
- Booga
- Boogaboo
- Boogee
- Booger
- Booger Buddy
- Booger Butt
- Booger Nose
- Boogety
- Boogie
- Boogie Boy
- Boogie Cat
- Boogie Oogie Oogie
- Boogie the Woo
- Boogie-Woogie
- Boogster
- Book'em Dano
- Booker
- Booker T (and the M-Gees)
- Bookie
- Books
- Bookums
- Boolee
- Boom-Boom
- Boom-Boom Bubbles
- Boomer
- Boomerang
- Boomey-butt
- Boomley
- Booms
- Boone
- Boopsie
- Booters
- Bootes
- Booties
- Boots
- Bootsie (Collins Pussycat)
- Bootsy
- Booty
- Bootz
- Booze
- Boozer
- Bopper
- Bopper Stopper
- Boppy
- Bor
- Bora
- Borboleta (Portuguese for "butterfly")
- Border
- Borg
- Boris
- Boris And Natasha
- Boris Baryshnakat
- Borris
- Borscht
- Bosch
- Bosco
- Boscovich
- Bosley
- Boss
- Bossman
- Bossy
- Boston
- Botan
- Bote
- Botelli
- Botham
- Botitas
- Botswana
- Boubie Or Bouba
- Bouboule
- Boucane
- Boudicca
- Bouffant
- Bougainvillea
- Bouggie
- Bounce
- Bouncer
- Bounty
- Bounty Hunter
- Bouquet
- Bourbon
- Bourbon Street Cat
- Bovine
- Bow Cat
- Bowie
- Bowie (after David Bowie)
- Bowie David Liberace
- Bowser
- BowTie
- Boxcar Willie
- Boxer
- Boy
- Boy Cat
- Boy Catte
- Boy-Ing-Goh
- Boyfriend
- Boyka
- Boykitty
- Boynton (cartoon character by Sandra Boynton)
- Boysie (after the character in sitcom 'Only Fools and Horses')
- Boz
- Bozo
- Brad
- Bradleigh
- Bradley
- Bradstreet
- Brady
- Brahms
- Brain
- Brainchild
- Braindead
- Brainiac
- Brains
- Braley
- Bramble
- Bramwell
- Brandi
- Brando
- Brandy
- Brandywine
- Branford
- Brassy
- Brat
- Bratcat
- Bratchild
- Bratikins
- Bratwurst
- Brau
- Brave One
- Bravo
- Brawler
- Brayden
- Brea
- Brea (bray-uh)
- Breakfast
- Breanne
- Breathless Mahoney
- Breezer
- Breezy
- Breezy Kitty
- Bremen
- Brenda
- Brenda Lee
- Brenda Starr
- Brendan
- Brendon
- Brenna
- Brenzev
- Bret
- Brett
- Brew
- Brewski
- Brewskie
- Brewsky
- Brewster
- Brezhnev
- Brezzers
- Brian
- Brianna
- Briar
- Brick
- Bridge O Rama
- Bridger
- Bridget
- Bridget-Titania
- Brie
- Brier
- Brier Rose
- Brigand
- Bright
- Bright Eyes
- Brightness
- BrightSpot
- Brill
- Brilla
- Brilla-Cat
- Brillabrillabrilla
- Brillo
- Brina
- Brindi
- Brindle
- Briney Deep
- Brinley
- Brioche
- Brioni
- Bristol
- Brit
- Brita
- Britches
- Brittany
- Brittany Jane
- Bro
- Broadway
- Brockie
- Brody
- Broken Bonz
- Broken Tail
- Bronco
- Bronson
- Bronson (Then Came Bronson)
- Brontë
- Bronwen-Penarddym
- Brooke
- Brooklyn
- Brooks
- Broom Hilda
- Broom Hylda
- Broomsticks
- Broshka
- Brouhaha
- Brown
- Brown Sugar
- Brownie
- Browser
- Brrrdie
- Bruce
- Bruin
- Bruiser
- Brunhilda
- Brunhilde
- Bruno
- Bruschi (after Tedy Bruschi of the New England Patriots)
- Brute
- Brutis
- Brutus
- Bryce Lynch
- Bub
- Buba
- Bubastis
- Bubba
- Bubba Gump
- Bubba Jr.
- Bubba, Jr.
- Bubbalouis
- Bubbie
- Bubble
- Bubble Butt
- Bubbles
- Bubby Benjamin
- Bubi
- Bubster
- Bubsy Bobcat
- BuBu
- Buca
- Buccaneer
- Bucci
- Buck
- Buckaroo
- Buckaroo Banzai (after the movie)
- Bucket
- Buckeye
- Buckhead
- Buckingham
- Buckminster
- Bucko
- Buckshot
- Buckwheat
- Bucky
- Buco
- Bud
- Bud Lite
- Bud-wiser
- Budabut
- Budd
- Buddette (a female Buddy)
- Buddha
- Buddutyheado
- Buddy
- Buddy Boy
- Buddy Cat
- Buddy Gecko
- Buderskottch
- Budha
- Budmeister
- Budroe
- Budrow
- Budster
- Budweiser
- Buff
- Buffalo Bill
- Buffie
- Buffington
- Buffoon
- Buffy
- Buffy the Mouse Slayer
- Buford
- Bug
- Bug Guy
- Buger
- Bugger-Because
- Buggles
- Buginarug
- Bugle Boy
- Buglet
- Bugnose
- Bugs
- Bugsy
- Bugtussie
- Buick
- Bull
- Bull Rafferty
- Bullcat
- Bullet
- Bullface
- Bullion
- Bulls
- Bullseye
- Bullwinkle
- Bully
- Bum
- Bumba
- Bumble
- Bumblebee Tuna
- Bumblemuffin
- Bumbles
- Bumbo
- Bump
- Bumper
- Bumpkin
- Bumps
- Bundle
- Bundle'o'love
- Bundy
- Bungee-Punjab
- Bungie
- Bungle
- Bungy
- Bunifa
- Bunji Fujimoto
- Bunk
- Bunkie
- Bunksters
- Bunky
- Bunni
- Bunny
- Bunny Butt
- Bunsen
- Bunter
- Bunty
- Burger
- Burger Butt
- Burgermeister
- Burglar
- Burgundy
- Burl
- Burlap
- Burlington
- Burly
- Burma
- Burp
- Burrito
- Burroughs
- Burt
- Burton
- Busby
- Bushcat
- Bushige (Siouan (Hidatsa dialect) for "cat")
- Bussetta
- Bussy
- Buster
- Buster Buster Feather Duster
- Buster Crab
- Buster Crabbe
- Buster Kitten
- Bustopher Jones
- Butch
- Butch Catsidy
- Buter
- Buterscotch
- Buteska
- Butkus
- Butler
- Butt
- Butt Nimbus Wacket
- Butter
- Butterball
- Butterbean
- Butterbutt
- Buttercup
- Butterfinger
- Butterfingers
- Buttermilk
- Butternut
- Butters (after the character in the "South Park" cartoons)
- Butters (from the cartoon "SouthPark")
- Butterscotch
- Buttersnap
- Butterworth
- Butthead
- Button
- Buttons
- Buttooskie
- Butts
- Buyo
- Buzby
- Buzlingtonian Gingerbits
- Buzz
- Buzz Balls
- Buzz Lightyear
- Buzzard
- Buzzy
- Byron (after Lord Byron)
- Byte
- Bytops
- BZBug