Cat Names
Below you find all the cat names starting with a M.
- M&M
- M&M's
- M'Lou
- M.C. ("Mother Cat")
- M.C. Amadeus
- M.D. ("Mad Dog")
- M.E.S.L. (Meatball eyes and spagetti legs)
- M.J.Tookers
- Ma
- Maalox
- Maatjie (Afrikaans for "little friend")
- Mabel
- Mabey
- Mac
- Mac Duff
- Mac the Knife
- Mac-Attack
- Macaroni
- Macasa
- Macavity
- Macbeth
- Macchiavelli
- Macduff
- MacGillikitty
- MacGregor
- MacGyver
- Macha (Irish Goddess)
- Machete
- Machiavelli
- Macho
- Machts Nichts
- Macintosh
- Mack
- Mackdoodles
- MacKenzie
- Mackerel
- Mackie
- Macko
- Macky Kat
- Macky-Wacky
- Macleay
- Macmillan
- Maco
- Macpherson
- MacTabby
- MacTavish
- Macuilxochitl (Aztec mythology: the god of music and dance)
- Macy
- Mad Cat
- Mad Dog
- Mad Max
- Mad Max the Road Warrior
- Mad Maxx
- Madam Boo
- Madam Helena petrovich Blavatski
- Madame Butterfly
- Madame Cuddles
- Madcap
- Madcap Bad Cat
- Madchen (German for "little girl")
- Maddie
- Maddison
- Madeira
- Madeleine
- Madeline
- Madhuri
- Madibug
- Madie
- Madison
- Madlyn
- Madmax
- Madoka
- Madoki
- Madonna
- Madore
- Maduro
- Maebelle
- Maelstrom
- Maestoso (musical term meaning "with majesty")
- Maestro
- Maestro Tuxedo
- Maeve
- Mafalda
- Mafioso
- Mag
- Maga
- Magapaws
- Magda
- Magdalina
- Magee
- Magellan
- Magellian
- Magenta
- Maggi
- Maggie
- Maggie Elise
- Maggie Mae
- Maggie May
- Maggie Moneyeyes
- Maggy
- Magi
- Magic
- Magna
- Magna Catta
- Magnesium Hydroxide
- Magnet
- Magnificat
- Magnolia
- Magnolia Belle
- Magnolia Mayhem
- Magnum
- Magnum P.I.
- Magnus
- Magnus Barf't
- Magpie
- Magritte
- Magruder
- Mags
- Magus
- Magwa
- Magz
- Maha
- Mahalia
- Maharishi
- Mahi-Mahi
- Mahimahi
- Mahogany
- Mahogany Mist
- Mahomet
- Mahrio
- Mahu
- Mai Ling
- Mai Tai
- Mai Tai Tu
- Mai-Ling
- Maia
- Maicho
- Maika
- Mailman
- Mainard
- Maine
- Mainerd
- Mainly Marvelous
- Maire
- Maisie
- Maitos
- Maizie
- Maizy
- Maja
- Majesta
- Majestic
- Majesty
- Majick
- Majik
- Major
- Major Grey
- Maka
- Makar
- Makayla
- Makena
- Makenzie
- Maki
- Makita
- Mako
- Maksi
- Mal Leable
- Mal'vina
- Malachai
- Malaquias
- MaLarkey
- Malcolm
- Malcolm James
- Malcolm The Boneless
- Malcolm X
- Malcom
- Malcom Tent
- Maley
- Maliboo
- Maliboo Canyon
- Maliboo Canyon Bear
- Malibu
- Malice
- Malichi
- Malik (Arabic for "master")
- Malinki (after Lynley Dodd's childrens book "Slinky Malinki")
- Malka
- Malkin
- Malkinor
- Malkuth The Mush-Boy
- Mallarde
- Mallarde, Cat a la Orange
- Malley
- Mallorey
- Mallory
- Mallpark
- Mallue
- Mally
- Mally Moe
- Mallymal
- Malossi
- Mam'selle
- Mama
- Mama Bumpity
- Mama C
- Mama Cat
- Mama Girl
- Mama Kitty
- Mama's Boy
- Mama's Missie
- Mamacita
- Mamala
- Mamba
- Mambo
- Mamie
- Mamma Cat
- Mamo
- Man
- Man of Mystery
- Man Of The Moon
- Man Paws
- Man Power
- Manapua
- Manchu
- Manda
- Mandal
- Mandalay
- Mandarijn
- Mandela
- Mandicat
- Mandicus
- Mandinka
- Mandolin
- Mandrake
- Mandu (as in Cat Mandu)
- Mandy
- Mandy Balck
- Maneca
- Manefa
- Manga
- Mango
- Mango (after the character in Saturday Night Live)
- Mangos
- Mangy Half-Breed
- Mangykat
- Manhasset (after a music stand company)
- Manhattan
- Maniac
- Maniac Kitty-kat Pendragon
- Manic Depressive
- Manky
- Mann
- Mannaz
- Manners
- Mannikavacakar
- Manny
- Manson
- Manteau
- Mantha
- Manuel
- Manx
- Manxy
- Mao (Egyptian for "Cat")
- Mao-Mao (Cantonese for "cat")
- Mao-tou Pu-sa (Chinese for "the Bodhisattva Cat-face")
- Mao-Tse Tung
- Maotsetung
- Mapes
- Maple
- Maple Syrup
- Mara
- Marabelle
- Maraschino
- Marat
- Marathon
- Marauder
- Marble
- Marbler
- Marbles
- Marblet
- Marbletski
- Marcel
- Marchello
- Marcie
- Marco
- Marco Polo
- Marcus
- Marcus Welby
- Marcy
- Mardi Gras
- Mareau
- Marf
- Marfa
- Marfusha
- Margaret (after Margaret Thatcher)
- Margaret Hissyface
- Margarine
- Margarita
- Margaritaville
- Margaux
- Margay
- Marge
- Margherita
- Margie
- Margin
- Margo
- Marguerita
- Marguerite
- Maria
- Maria Conchita Gatopants
- Mariachi
- Mariah
- Marianna
- Marianne
- Marichat
- Maricho
- Marie
- Marie Antoinette
- Marie Curie
- Marie-Eve
- Marieka
- Marietta
- Marigold
- Marika
- Marikatin Olga Andrejevna
- Marilla
- Marilou
- Marilyn
- Marilyn Monroe
- Marin
- Marina
- Marinara
- Mario
- Mariole
- Marion
- Mariposa (Spanish for "butterfly")
- Mariska
- Marja
- Marjoram
- Mark
- Mark Antonia
- Mark I love you
- Markel
- Marker
- Markiz
- Marky-pooh Whiskers Nibble Corn
- Marla
- Marla Maples
- Marlboro
- Marlena
- Marley
- Marlin
- Marlo
- Marloe
- Marlowe (after Philip)
- Marmaduke
- Marmalade
- Marmelade
- Marmie (short for Marmalade)
- Marmite
- Marmsyduke
- Marney
- Marnie
- Marquee
- Marrakesh
- Mars
- Marshall
- Marshmallow
- Marshmellow
- Marsina
- Marta
- Marte
- Martha
- Martian
- Martin
- Martina
- Martini
- Marty
- Marvelous
- Marvelous Imperial Pussycat
- Marvin
- Mary
- Mary Bagpipe Donut
- Mary Catherine
- Mary Katherine
- Mary Magdalene
- Mary-Ann
- Mary-Kate Olsen
- Maryellen
- Marykay
- Marylou
- Marzipan
- Marzipan (from the Flash cartoon Homestar Runner)
- Mascara
- Mascot
- Masha
- Mashka
- Mashmaloo
- Masika (Swahili for "born in the rain")
- Maso
- Mason
- Masquerade
- Master
- Master Nicholas Christian
- Master Sebastian
- Master Sebastian, The Bastu Of Fu Manchu
- Mastro
- Masya
- Masza
- Mata Hari
- Matador
- Matca (Croatian for 'female cat')
- Match Maker
- Matches
- Mateus
- Mathilda
- Matilda
- Matisse
- Matje (Flemish for "little mat")
- Matka
- Matok
- Matou
- Matra
- Matrena
- Matrix
- Matrozkine
- Matt
- Matt Catt
- Matter-of-Cat
- Matthew
- Mattie
- Matty
- Matzo
- Mau
- Mauchai
- Maud
- Maude
- Maui
- Maule
- Mauler
- Maulie
- Mauly Ringworm
- Maunz
- Maunz (catname in Struwwelpeter)
- Maunzi
- Maura
- Maureen
- Maurice
- Maus
- Mauser
- Mauve Mutz
- Mauwse
- Mave
- Maverick
- Mavis
- Mavra
- Max
- Max a million
- Max Houdini
- Maxi
- Maxie
- Maxie Messmaker
- Maxie-boo
- Maxie-Moto
- Maxiefaxiewaxietaxi
- Maxima
- Maximilian Liao Klein
- Maximillian
- Maximillion
- Maximillion Diamond
- Maximillion vonBadcat
- Maximino
- Maximoto
- Maximum Cat
- Maximus
- Maximus Decimus Meridius
- Maxine
- Maxine MacArthur
- Maxlie
- Maxlin
- Maxmillian
- Maxwell
- Maxwell P. Cat
- Maxwell Silver-Hammer
- Maxwell Smart
- Maxx
- Maxy
- Maxy-P
- May
- May Kitty
- May Thai
- May-pole
- Maya
- Mayahuel (Aztec mythology: goddess of maguey)
- Maybe
- Maybe Baby
- Maybelline
- Mayfair
- Mayflower
- Mayhem
- MayMay
- Maynard
- Mayor McCheese
- Maysa
- Mazel Tov
- Mazie
- Mazik
- Mazo
- Maæka
- McCavity
- McCloud
- McConnell
- McCoy
- McDuffy
- McEntire
- McGreggor
- McGurk
- McKenzie
- McKinley
- McNeil Sylvester Waller-Orth
- McNutt
- McNuttless
- McQue
- McSalter
- McTavish
- Me Too
- Me-Too
- Mea
- Mea Culpa (Latin for "my fault")
- Meade
- Meadow
- Meaghan
- Mealy
- Mealykaleekymacka (Christmas)
- Meander
- Meaness
- Measles
- Meat-a-licious
- Meatball
- Meathead
- Meathook
- Meatious Maximus
- Meatloaf
- Meatloaf (after the rock band)
- Meatloaf Of Death
- Meaty Boy
- Meaty Feets
- Meatyboy
- Mebo
- Medea
- Medianoche
- Medicine Kitty
- Medicine Man
- Medley
- Medusa
- Mee-Krob
- Meecer
- Meechako
- Meecho
- Meeko
- MeeMee
- Meems
- Meenie
- Meep
- Meepers
- MeerClar Sloane
- Meesh
- Meesha
- Meeth
- Meethie
- Meetsi (German for "kitty")
- Meeuw (Afrikaans for "meow")
- Meeuw (Dutch for "pigeon")
- Meewow
- Meezee
- Meg
- Mega
- Megabyte
- MegaDeath
- Megadots
- Megahertz
- Megan
- Megan Brooke
- Megatoes
- Megellan
- Meggie
- Meggie The Bitch Kitty
- Meghann
- Megs
- Mehitabel
- Mehkt Hakkikt
- Mei Ling Shan
- Mei Sin
- Meisha
- Meisie
- Meissa (after Lambda Orionis, one of the stars in the Orion constellation)
- Meistoe
- Meiya Harley
- Mejo (Spanish for "black")
- Meko
- Mel
- Mel Gibson
- Melabie
- Melan
- Melange
- Melanie
- Melanippos
- Melanistic
- Melas (Biblical Greek word for black)
- Melbourne
- Mele
- Meli (Greek for "honey")
- Meliot (after Arthurian literary character "Sir Meliot de Logres")
- Melissa
- Melitrissa
- Mello
- Mellon (Means "Friend")
- Mellow
- Melodie
- Melody
- Melon
- Melon-Head
- Meluseth (she who loves the moon)
- Melville
- Melvin
- Melvis
- Mem
- Meme
- Memmy
- Memmycat
- Memnoch (after the character in Anne Rice's 'Vampire Chronicles')
- Memoir
- Memphis
- Menage
- Menchi
- Mendle
- Mendlesohn
- Meneau
- Meneki Nikko
- Menelao
- Mennis
- Menolly Jazz
- Mental
- Mental Case
- Meo
- Meo Hao
- Meouwz
- Meow
- Meow Meow
- Meow Meow Girl
- Meow Tse Tounge
- Meow Tse-Tung
- Meow-mee
- Meower
- Meowie
- Meowie Face
- Meowkis
- Meowmer
- Meowser
- Meowshroom
- Meowski
- Meowsta
- Meowwow
- Meowzabeth
- Meowzer
- Meowzers
- Meowzie
- Meph
- Mephisto
- Mephistopheles
- Mercedes
- Mercer
- Mercury
- Mercutio (character in Romeo and Juliet)
- Mercy
- Meredith
- Meri-Mehkmet (after an Egyptian queen)
- Meriadoc
- Meringue
- Merissa
- Merle
- Merlin
- Merlin Mc.Cuddle Loaf
- Merlino
- Merlkins
- Merlot
- Merly
- Merlyn
- Merry
- Merry Christmas
- Merry Mews
- Mervyn
- Mery
- Meryl
- Meryl Peep
- Mesa
- Mesha
- Meshak
- Mesquite
- Messy
- Messyfase
- Meta
- Meta Mae
- Metallica (after the rock/metal band)
- Metaphor
- Metaxa
- Methos (an enigmatic TV show character with many cat characteristics)
- Methyl
- Metis
- Metoo
- Metric
- Metricat
- Metrick
- Metrik
- Metro
- Metztli (Aztec mythology: the moon god)
- Meuser
- Mew
- Mewbles
- Mewlan
- Mewler (after the Irish tenor)
- Mewy
- Mewymew
- Meyer
- Mi Nyo (Burmese for "Miss Brown")
- Mi Tu
- Mi-kay Seven (Japanese for "tricolor-feline-unit-seven")
- Mi-Ke
- Mia
- Miacis (50 million year old ancestor of the cat)
- Miaow-Miaow
- Miasma
- Miata
- Miauert
- Miaumoto (Japanese swordsman/strategist)
- Miav (Danish for "meow")
- Mic Mac
- Mica Mutza (Romanian for "little cat")
- Micaela
- Micah
- Micari
- Mice Master
- Micester
- Michael
- Michael Jordan
- Michael Patrick O'Kittycat
- Michael Thomas
- Michaela
- Michaelangelo
- Michant
- Micheal
- Michel
- Michelangelo
- Michelle
- Michi
- Michief
- Michine (Mi-cheen)
- Michkin
- Micia
- Micio
- Mick
- Mick Jagger
- Mick St. Charles
- Mickey
- Mickey And Minnie
- Mickey Blue
- Mickey Mouser
- Micki
- Mickin
- Mico
- Mico (Spanish for "little monkey")
- Micro
- Microbes
- Mictlan (Aztec mythology: the underworld)
- Mictlantecuhtli (Aztec mythology: the god of Mictlan and the dead)
- Midas
- MiddieMeow
- Middles
- Midge
- Midget
- Midi
- Midnight
- Midnight Amber Foxy Kamber
- Midnight Blue
- Midnight Mariah (from the song "They Call The Wind Mariah")
- Midnight Rider (after the song by the Allman Brothers Band)
- Midnight Shadow
- Midnight Smedley
- Midnight Special
- Midnite
- Midori
- Midrange
- Mie
- Mie Mie (pronounced "My My)
- Mie moe moe
- Mieko
- Miele
- Miemur
- Mies
- Miescat
- Mieschen
- Miezer
- Miffer
- MiG
- Mighty
- Mighty Hunter
- Mighty Mouth
- Mighty Thor
- Mignon
- Mija (Spanisch for "little girl")
- Mika
- Mikail
- Mikaso
- Mike
- Mike Hammer
- Mike Malone
- Mike Malone Of Suzeran
- Mike P. Hoover
- Mikey
- Mikey Jordan
- Mikhail
- Miki
- Mikie
- Mikkar
- Mikkel
- Mikki
- Mikko
- Miklo
- Miko
- Mila
- Milady
- Milagros (Spanish for "miracles")
- Milano
- Mildew
- Mile High
- Milea
- Milennium
- Miles
- Miles (of smiles)
- Milhouse
- Milk
- Milk Misty
- Milk Monster
- Milkdud
- Milkshake
- Milky
- Milky Way
- Milla
- Milla-Magia
- Mille
- Miller
- Milli
- Milli Vanilli
- Millicent
- Millicent (after the character in D.C. Simpson's online comic "Ozy and Millie")
- Millie
- Millie T. Cat
- Millwood
- Milly
- Milly and Millford
- Milly Molly Mandy
- Milmil
- Milo
- Miloe
- Milou
- Milton
- Mima
- Mimas Maxamillian
- Mime
- Mimi
- Mimi - Ow!
- Mimine
- Mimmi
- Mimo
- Mimosa
- Mimsy
- Min
- Min-min
- Mina
- Mincer (catname in Struwwelpeter)
- Mindinao
- Mindy
- Mindy Rae
- Mine
- Mineau
- Minerva (after the Roman goddess of the hunt)
- Minet
- Minette
- Ming
- Ming Foo
- Ming Li
- Ming Ming the Circus Monkey
- Ming Sue
- Ming-Ling
- Minga
- Mingo
- Mingus
- Mini
- Mini Gray
- Mini Me
- Mini Min
- Mini Panther
- Mini Pearl
- Minica
- Minie
- Minilotto
- Minime
- Minimum
- Minimum-cat
- Minipuss
- Minis
- Mink
- Minka
- Minkatze
- Minke
- Minki Man
- Minkin
- Minko
- Minky
- Minky Sue
- Minneapolis
- Minneapurrlis
- Minnerva
- Minnesota
- Minni
- Minnie
- Minnie Mitchell
- Minnie Moo
- Minnie Moo Lazy
- Minnie Mouse
- Minnie Pearl
- Minnow
- Minny
- Mino (French for "Puss")
- Minoe
- Minoes
- Minon (from the poem "Prince Dorus" by Charles Lamb, 1811)
- Minor
- Minou
- Minou Noir
- Minouche
- Minow
- Minsky
- Minster
- Minstrel
- Mint (after the herb)
- Mintaka
- Mintie
- Mintnight
- Minue
- Minuet
- Minuette
- Minuish
- Minute Maid
- MinWee
- Minx
- Minyen
- Minz (catname in Struwwelpeter)
- Mip
- Mira
- Mirabell
- Miracle
- Miracle Cat
- Mirage
- Miranda
- Miranda Mabel
- Mirci
- Miri
- Miriam
- Miribu
- Mirka
- Miró
- Mirru
- Misantrop
- Mischa
- Mischevious
- Mischief
- Mise
- Misery
- Misfit
- Mish
- Mish Mosh
- Misha
- Mishimi
- Mishka
- Mishmash
- Mishnoodle
- Mishra
- Mishy
- Misk
- Miso
- Misquita
- Miss Abigail Buttonwood
- Miss Angelica Pureheart
- Miss Ashley
- Miss Buffy
- Miss Cleo
- Miss E.
- Miss Ee
- Miss Gabby
- Miss Kaya
- Miss Kitty
- Miss Lily
- Miss Limpfooty
- Miss Lucy
- Miss Maple
- Miss Marple
- Miss Meow
- Miss Modest
- Miss Molly
- Miss Moonstone
- Miss Muffett
- Miss Muffin
- Miss Nellie Smellie Yellow-bellie
- Miss Paws
- Miss Penny
- Miss Piggy
- Miss Pittypat
- Miss Pretty Princess Abigail Smooch Face
- Miss Priss
- Miss Prissy
- Miss Purrrfect
- Miss Puss
- Miss Rae
- Miss Relaxation
- Miss Sarah
- Miss Sarah Vaughan
- Miss Strangelove
- Miss T. Bell
- Miss Tizz
- Miss Wiggles
- Miss-Queue
- Missan
- Misser (Danish for kitty)
- Missie
- Missing Link
- Missle
- Misst
- Missy
- Missy Kitty
- Missy Tardee
- Missycat
- Mist
- Mistee
- Mister
- Mister Brother
- Mister Demonico
- Mister Fuzzy Rubberlips
- Mister MaGoo
- Mister Mister
- Mister Patootie Head
- Mister Perkins
- Mister Puddycat
- Mister Something erother
- Mister Thumbs
- Misti
- Mistiblue Mischief
- Mistifur Mountain Kitty Kat
- Mistifur Mountain Meadow Muffin
- Mistique
- Mistletoe
- Mistoffeles
- Mistress
- Mistress Buffington
- Mistress Of Fridge
- Mistress Quickly
- Misty
- Mit Bo
- Mit-tee
- Mitaine
- Mitch
- Mitchell
- Mithcah
- Mithra
- Mithra Cat
- Mithra Louise
- Mithril
- Mitja
- Mitka
- Mitnal (Maya mythology: the underworld hell)
- Mito
- Mitou
- Mitsi
- Mitsou
- Mitsy
- Mitten
- Mittens
- Mitts
- Mitz
- Mitza
- Mitzarena
- Mitzi
- Mitzvah
- Mitzy
- Mitzy Mew
- Mix
- Mixed Up
- Miz Lucy
- Miz Piggy
- Mizzy
- Mlle Butterfly
- Mme Hochi Min
- Mo
- Mo Cuirdh (Gaelic for "beloved")
- Mo Vaugh
- Mo-fo
- Mo-i-Rana
- Mo-Jo
- Mo-Mo
- Mobius (after the mathematician)
- Moby
- Mocha
- Mocha AKA PussyBoots
- Mocha Manx
- Mocha Mix
- Mochi
- Mocka
- Moco
- Mod
- Modem
- Modena
- Modest
- Moe
- Moe Ellen Jeanmarie
- Moe Moe
- Moe-Monster
- Moet
- Moffitt
- Mogadishu
- Mogadon
- Mogadonna
- Mogget (after the character in the fantasy novels by Garth Nix)
- Moggie
- Moglet
- Mogra
- Mogsie
- Mogul
- Mogwai
- Mogwyre
- Mohave
- Mohawk
- Mohican
- Mohrle
- Moira
- Moira Coon
- Mojave
- Moji
- Mojo
- Mojosito
- Mojothunder
- Moka
- Mokey
- Moki
- Mokie
- Mokin
- Moku
- Mold
- Mole
- Moll Flanders
- Molley
- Molli
- Mollicoddle
- Mollie
- Molly
- Molly Lou
- Molly May Marie
- Molly McButter
- Molly Meganne Noelle
- Molly Molla
- Molly Silverpaws
- Molly Sue
- Mollye
- Molson Moo Cat
- Mom
- Mom Kitty
- Mom-Cat
- Moma Puss
- Momcat
- Momma
- Momma Cat
- Momma Mutz
- Mommy Kitty
- Mommy-Kiddy
- Mommycat
- Momo (gangster from the movie "Get Shorty")
- Momotaro
- Mon Ami
- Mon Cher Or Ma Cherie
- Mona
- Mona Lisa
- Mondavi (from the californian winery)
- Monday
- Monet
- Money
- Money Honey
- Monger
- Mongo
- Mongo (after a character in the movie Blazing Saddles)
- Mongoose
- Monica
- Monica Kat
- Monica Lewensky
- Monika
- Monique
- Monk
- Monkey
- Monkey Face
- Monkeybutt
- Mono
- Monochrome
- Monroe
- Monsanto
- Monsieur
- Monster
- Monster Kitty
- Monstrance
- Montague
- Montana
- Monte
- Monte Carlo
- Montego
- Monteque
- Montezuma (after the Aztec god-king)
- Montgomery
- Montgomery Clift
- Monther
- Monty
- Monty Python
- Moo
- Moo Moo Cat
- Moo Moo Cow
- Moo-Moo
- Mooby
- Mooch
- Moocher
- Moochka
- Moochmeister
- Moochy
- Moody
- Moody Blue
- Mooer
- Moofik
- Moofy
- Mooggie
- Moogie
- Mookey Bear
- Mookie
- Mookie-Pookie
- Mookitty
- Moolie-moos
- Moomoo
- MooMoo
- Moon
- Moon Light
- Moon Maiden
- Moon Pie
- Moon Unit
- Moona
- Moonbeam
- Moonbean Or Moonmist
- Mooncat
- Moonchaser
- Mooncritter
- Moondance
- Moondust
- Moonflower
- Moongoddess
- Moonie (after the late drummer/hotel-room-wrecker Keith Moon)
- Moonlight
- Moonraker
- Moonshadow
- Moonshine
- Moonstruck
- Moonunit
- Moorea (island in Tahiti)
- Moose
- Mopar
- Moped
- Mopet
- Mophead
- Mophy
- Moppet
- Moppie Sloef
- Mopsy
- Moptop
- Moqui
- Morag
- Mordacious
- Mordecai
- Mordicai
- Mordillo
- Mordred
- Morey
- Morgaine
- Morgan
- Morgan Fairkitty
- Morgan LeFey
- Morgana
- Morgen
- Mori
- Moriah
- Moriarity
- Moritz
- Mork
- Mork And Mindy
- Morley
- Morning Glory
- Morocco
- Morpheus
- Morris
- Morris Lynn
- Morris Minor
- Morrisey
- Morrison
- Morriz
- Morse (after Inspector Morse)
- Morsel
- Mort
- Mortcake
- Morticia (Addams family)
- Morticia Morena
- Mortimer
- Mortimore B. Zuckkerman
- Mortina
- Mortisha
- Morton
- Morty
- Mosa
- Mosby
- Mose
- Moselle
- Moses
- Mosey
- Moshe
- Moshto
- Mosi (Navajo for "cat")
- Mosis
- Most
- Most Handsome
- Mother
- Mother Lode
- Mother Teresa
- Motley
- Motley Crue
- Motley Tue
- Moto
- Motor
- Motor Boat
- Motor Man
- Motor Unit
- Motorino
- Mottebal
- Mouauia ibn Abihi (Arabic for "wailing bitch bastard")
- Moufette
- Mough
- Mountainlion
- Mouse
- Mouse Doggie
- Mouse McNasty
- Mousekewitz
- Mouseman
- Mouser
- Mouser Pounce-Fast
- Mouseripper
- Mousetrap
- Mousie
- Moussaka
- Mousse
- Moussette
- Moussine
- Moustache
- Moustic
- Moustick
- Mousy
- Mouth
- Mouton
- Movado
- Movie Star
- Movie Star Cat
- Mow
- Mow Mow
- Mowcha
- Mowgli
- Mowp
- Mowpurrs
- Mowse
- Moxi
- Moxie
- Moxy
- Moya
- Moyshi
- Mozart
- Mozez
- Mozzerella
- Mr Monster
- Mr. "B" ("Mr. Bastard")
- Mr. A. Gray
- Mr. Alfred
- Mr. Anderson
- Mr. Apricot
- Mr. Bean
- Mr. Beans
- Mr. Beast
- Mr. Bentley
- Mr. Big
- Mr. Big Stuff
- Mr. Biggles Worth
- Mr. Bigglesworth
- Mr. Bill
- Mr. Blue
- Mr. Bojangles
- Mr. Bonkers (from "That 70's Show")
- Mr. Boots
- Mr. Bowles
- Mr. Brown
- Mr. Bubbles
- Mr. Bunny
- Mr. C
- Mr. Cat
- Mr. Chips
- Mr. Choo
- Mr. Clovis Grimm
- Mr. Cold Paws
- Mr. Cotton
- Mr. Dainty Paws
- Mr. Dogfood
- Mr. Fatcat
- Mr. Fi Fi
- Mr. Fish
- Mr. Flatley
- Mr. Fluff
- Mr. Fur
- Mr. Furrbody
- Mr. Fuzz Butt
- Mr. Fuzzy Nose and Toes
- Mr. Fuzzybuns
- Mr. Gingipuss
- Mr. Goober
- Mr. Goodkitty
- Mr. Gotti
- Mr. Happy
- Mr. Hudson
- Mr. Jade
- Mr. Jenkins
- Mr. Jones
- Mr. K
- Mr. Katt
- Mr. Kitty
- Mr. Kitty to You
- Mr. Krabbs
- Mr. Krinkle
- Mr. LittleHead
- Mr. Lucky
- Mr. Lucy
- Mr. Lurch
- Mr. M.
- Mr. MacGeezer
- Mr. Macgeezer
- Mr. Magoo
- Mr. Magoo.
- Mr. McFluffer
- Mr. Mealy
- Mr. Men
- Mr. Mir
- Mr. Mister
- Mr. Mistoffolees
- Mr. Moe
- Mr. Mouse
- Mr. Moustache (after the song by Nirvana)
- Mr. Neo
- Mr. Nibblesworth
- Mr. O'Mally
- Mr. Peepers
- Mr. Pi
- Mr. Pickles
- Mr. PoPo
- Mr. President
- Mr. Puddy
- Mr. Purrbody
- Mr. Purrfect
- Mr. Pussy
- Mr. Roosevelt
- Mr. Sandman
- Mr. Scarfies
- Mr. Sleepers
- Mr. Sleepy
- Mr. Snickers
- Mr. Snuggle Bum
- Mr. Sonny L. Burke (L. for "louse")
- Mr. Spaz
- Mr. Taz Man
- Mr. Tibbs
- Mr. Tickle Bum
- Mr. Tilly
- Mr. Tinkles
- Mr. Topplemeyer
- Mr. Tubbsaflubbs
- Mr. Uhtman
- Mr. Underfoot
- Mr. Whiskers
- Mr. Winston (Winnie)
- Mr. Wiskers
- Mr. Woo
- Mr. Wooten
- Mr.Cuddly Buns
- Mrackbudha
- Mracks-A-Lot
- Mri'Fa
- Mrrow
- Mrrranda
- Mrs. Naugatuck
- Mrs. Noris (after Filch's cat in the Harry Potter books)
- Mrs. Peel (after the character in the tv-series "The Avengers")
- Mrs. Silverspoon
- Mrs. Tabitha Twitchet (from "The Tale of Tom Kitten" by Beatrix Potter)
- Ms. Agnes Depesto
- Ms. Beach
- Ms. Beasley
- Ms. Bigglesworth
- Ms. Cat
- Ms. Cornwallis
- Ms. Dikky
- Ms. Grey
- Ms. Kitty
- Ms. Lester
- Ms. Meowkins
- Ms. Morgan
- Ms. Piggy
- Ms. President
- Ms. Rascalini
- Ms. Sassy Cat
- Ms. Scott
- Ms. Sweet
- Ms. Terry
- Ms. Woogies
- Mu
- Mu Shu
- Muchpurr
- Muckl
- Mucus
- Mud
- Mud duck
- Mud Pie
- Mud Puddle
- Mudd
- Muddles
- Mudgie
- Mudpie
- Mudslide
- Muenster
- Mufasa (from The Lion King)
- Mufasa (from the movie The Lion King)
- Muff
- Muffassa
- Muffet
- Muffi
- Muffie
- Muffie-Roo
- Muffin
- Muffin Man
- Muffin Muffin
- Muffin-head
- Muffinhead
- Muffinman
- Muffins
- Muffinster
- Muffioso
- Muffster
- Muffy
- Mufti
- Mug
- Mugabe
- Mugatu (after the character in the movie "Zoolander")
- Mugger
- Muggle Bear
- Muggsy
- Mugin
- Mugsy
- Mugwump
- Muhammad Ali
- Muira
- Muk
- Mulberry
- Mulder
- Muldoon
- Mulle
- Mullet
- Mumbles (after the castle in Wales)
- Mumford
- Mumma
- Mummies Little Angel Pie
- Mummu Kitty
- Mumsy
- Muncher
- Munchie
- Munchkin
- Munchykin
- Mundo
- Mungo
- Mungojerrie
- Munk
- Munku
- Munkustrap
- Munster
- Muon
- Mupee
- Muppet
- Mupps
- Murcielago (Lamborghini)
- Murderdoll Mayhem (after the band Murderdolls)
- Murdock
- Murfee
- Muriel
- Murka
- Murph
- Murphy
- Murphy Brown
- Murray
- Murzik
- Muscatelli
- Musch
- Muscrat
- Muse
- Muselix
- Mushi
- Mushka
- Mushroom
- Mushy
- Muskustrap
- Musli
- Mustang
- Mustard
- Mutant
- Mutiny
- Mutt
- Mutt the Bald
- Mutza
- Mutzy
- Muu-Muu
- MVP
- My Girl
- My Lady Sam
- My Little Cat
- My Little Girl
- My Little Girl Girl
- My Little One
- My Little Pumpkin
- My love
- Mya
- Mycroft (named for Sherlock Holmes "smarter" brother)
- Myer
- Mykah
- Myki
- Mykonos
- Myles
- Mylette
- Mymlan
- Myna
- Mynta
- Mynx Poo-gas Pendragon
- Myron Henry Miracle
- Myrtle
- Mysha
- Mysin
- Myska
- Mystaya
- Mystery
- Mystery Girl
- Mysti
- Mystic
- Mystina
- Mystique
- Myth
- Mytsz