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Best Costumes Starting With M

Looking for some super fun and unique ideas for costumes starting with M? I have compiled some great ideas and lists for all different types of costumes that start with M, that are great for Halloween and other fancy dress parties and events.

There are fun costumes beginning with M for guys and girls of all ages and even some great M costumes for kids. There are also some fun letter M costumes for couples, babies and pets.

Costumes Starting with M

Costumes Starting with M

Some costumes here are available to purchase and others are for inspiration. I hope you love these M party costumes and that they inspire an amazing dress up.

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Letter M Halloween Costumes T-Shirt Tutu Skirts, Team Group T-Shirt, Funny Costumes for Halloween Christmas Party Costume Red
M&M’s Costume for Group

There are heaps of options here for fancy dress beginning with M for all different types of categories, including objects, celebrities / famous figures, characters, cartoon characters, food, occupations/uniforms, sports, colors, animals and countries.

Things Starting with M

Check out the fun dress up starting with M that are things! Anyone will be the hit of the party in any fun of these outfits.

  • Magnet
Rasta Imposta Chick Magnet, Red, One Size
Magnet Costume
  • Mirror – wear lots of reflective and silver items to make this costume a reality – pair the mask with a silver cape for a fun idea.
Disguise Costumes No Face Chrome Mask, Adult
Mirror Costume
  • Mouth
Rasta Imposta Lips and Tongue Costume, Multi-Colored, One Size
Mouth Costume
  • Money – great costume for men and you’ll love the money boa for women paired with a green dress.
Rasta Imposta Dollar 100 Bill Costume, Green/White, One Size
Money Costume
  • Mix Tape
My Fire Mixtape 80s Halloween Costume - Funny Cassette Tape Adult Music Costumes
Mix Tape Costume
  • Missing Milk Carton
Rasta Imposta Milk Carton Hood, White, One Size
Missing Milk Carton
  • Mona Lisa
Rasta Imposta Mona Lisa, Multi, One Size
Mona Lisa Costume
  • Mobile Phone 
Rasta Imposta 2000's Cell Phone Costume Retro Cellular Wireless Mobile Digital Telephone Dress Up Cosplay Party Costumes, Adult One Size
Mobile Phone Costume

Celebrities Starting with M

Dressing up as a celebrity can be a fun option for costume ideas starting with M. There are lots to choose from starting with this letter.

  • Madonna – recreate this music icon’s early 80’s to mid 90’s looks with lots of accessories.
Party King 80s Pop Diva Women's Costume Set, Gold, Small
Madonna Costume
  • Marilyn Monroe
Marilyn Monroe Costume Dress Medium
Marilyn Monroe Costume
  • Margot Robbie – perhaps you could dress up as Harley Quinn.
  • Macaulay Culkin
  • Michael Jordan – why not wear a MJ basketball jersey
  • Michael Jackson – it’s hard to go past a Thriller outfit.
Charades mens Michael Jackson Thriller Jacket Adult Sized Costume, Red, Small US
Michael Jackson Costume
  • Mariah Carey
  • Miley Cyrus
  • Mark Wahlberg – recreate his early look with the baggy jeans and Calvin Kleins.
  • Michael Douglas
  • Marlon Brando
  • MC Hammer – those hammer pants though – so fun!
California Costumes Old School Rapper Costume Large/X-Large Black
MC Hammer Costume
  • Matt Damon
  • Melania Trump
  • Meryl Streep
  • Magic Johnson
  • Michael Hutchence
  • Michael J. Fox
  • Marilyn Manson
  • Monica Lewinsky
  • Michael Schumacher
  • Morgan Freeman
  • Michelle Pfeiffer
  • Michelle Obama
  • Michael Buble
  • Mick Jagger
  • Meghan Markle
  • Milla Jovovich
  • Mr T – wear lots of chunky chains and a mohawk wig to help you with this fun costume.
  • Mike Myers

Famous Figures Starting with M

  • Martin Luther King
  • Malcolm X
  • Mary
Adult Virgin Mary Costume X-Large
Mary Costume
  • Mother Teresa
  • Margaret Thatcher
  • Mahatma Gandhi
  • Mozart
Classical Composer Costume Kids Medium
Mozart Costume
  • Marc Antony
  • Mussolini
  • Mark Zuckerberg
  • Mikhail Gorbachev
  • Marie Curie
Fun Costumes Women's Marie Curie, Black, Small
Marie Curie Costume
  • Moses
California Costumes Adult Moses Costume Large/X-Large Red
Moses Costume
  • Muhammad Ali
  • Michelangelo
  • Mark Twain
  • Marcus Aurelius
  • Marco Polo

Character Costumes

There are so many characters that start with M. Take a look at some of the fun suggestions below.

  • Maid – some of these costumes are a little extra so take care if looking when the kids are around.
Forum Novelties womens French Maid Accessory Kit Costume Accessories, Black/White, One Size US
Maid Costume
  • Monk – think Medieval monk with the crucifix and long brown robe or a Buddhist monk wearing an orange robe.

GOLDSTITCH Friar Medieval Hooded Monk Renaissance Priest Robe Costume Cosplay

  • Minecraft – create a costume out of boxes for kids who love this game.
Armor Deluxe Minecraft Costume, Blue, Medium (7-8)
Minecraft Costume
  • Mafia – this is a great fun costume for both men and women. Add toy guns, garters for women, ganster hat and pinstripes and you’re ready.
Mens Mob Boss Costume Large
Mafia Costume
  • Mad Hatter
Disney Disguise Men's Alice Mad Hatter Deluxe Costume, Multi, Medium
Mad Hatter Costume
  • Medicine Man
  • Medicine Woman
Fun World Costumes Medicine Woman, Brown, 2-8 Small
Medicine Woman Costume
  • Mia Wallace from Pulp Fiction
Women's Pulp Fiction Mia Wallace Costume Pulp Fiction Costume for Women Small
Mia Wallace Costume
  • Mummy
Teen Mysterious Mummy Costume - L
Mummy Costume
  • Medieval Mercenary
Forum Medieval Mercenary Deluxe Costume, Multi Color, Standard
Medieval Mercenary Costume
  • The Mask – just add green facepaint or the actual green mask.
fun shack Adult Yellow Man Costume, Mens Zoot Suit Costume, Movie Character Costumes For Men, 90s Halloween Costumes For Men, Large
The Mask Costume
  • Mermaid
Party King Women's Under The Sea Mermaid Costume, Turquoise/White, X-Large
Mermaid Costume
  • Merman – pair this with a Mermaid outfit and you have a hilariously cute couples costume.
Fun Costumes Salty Merman Men's Costume | Large
Merman Costume
  • Maid Marian
Smiffys womens Maid Marion Adult Sized Costumes, Red, M - US Size 10-12
Maid Marion Costume
  • Mary Poppins
California Costumes Women's English Nanny - Adult Costume Adult Costume, -Gray/Navy, Medium
Mary Poppins Costume
  • Moulin Rouge – dress up in amazing bodices, corsets, feathers and lacy skirts to make this outfit amazing.
  • Middle Ages
Medieval Princess Costume for Girls X-Large
Middle Ages Costume
  • Miss Piggy
  • Medieval Knight
California Costumes Men's Medieval Knight Costume Large/X-Large
Medieval Knight Costume
  • Mad Max – so many unique post-apocalyptic accessories here for this costume.
  • Medieval Princess
  • Millionaire
  • Macbeth
  • Medusa – You’ll need an awesome snake headpiece for this outfit.
Womens-Sexy Medusa Costume X-Large
Medusa Costume
  • Max Payne
  • Magnum P.I. – grab a Hawaiian shirt, baseball cap and bushy mustache for maximum effect.
Magnum Jungle Bird PI Tom Selleck Red Costume Shirt and Hat
Magnum PI Costume
  • Morticia Addams – from the Addams Family
Rubie's Addams Family Morticia Addams Costume for Women - XS
Morticia Addams Costume
  • Morpheus from The Matrix – Great long capes and clip on black glasses to complete this look.
  • Mystique from X-Men – Just add blue facepaint and you’re ready.
  • Maximus – dress up in an amazing Gladiator costumes and BYO sword.
California Costumes Roman Gladiator Costume X-Large Multi
Maximus Costume
  • Musketeer
Smiffys Men's M-US Size 38"-40" Musketeer Male Costume, with Top, Hat, Navy
Musketeer Costume
  • Magic Carpet from Aladdin – attach one of these towels to your front and back and you’re ready!
MAHENSHANGM Costume Magic Inspired Carpet Hooded Cape for Halloween Cosplay Men's Women's Jafar Cloak with Hood for Party Costumes
Magic Carpet Costume

Cartoon Character Costumes

  • Mickey Mouse – a fun yet obvious choice for a M theme.
Fun Costumes Deluxe Disney Adult Mickey Mouse Dress (S)
Mickey Mouse Costume
  • Minnie Mouse
Disney Disguise Women's Red Minnie Mouse Classic Costume, Red/Black/White, Large
Minnie Mouse Costume
  • Mufasa from the Lion King
Dreamgirl Adult Mens Lion Costume, King of the Jungle Lion Halloween Costume - X-Large
Mufasa Costume
  • Michelangelo Ninja Turtles
Teenage Mutant Ninja Turtles Long Sleeve Michelangelo Costume Adult Green T-Shirt & Eye Mask (Adult Medium)
Michelangelo Costume
  • Minions – fantastic outfits for both kids and adults with some great plus size options too.
Rubie's womens Despicable 2 Minion Adult Sized Costumes, As Shown, Extra-Small US
Minion Costume
  • Mulan
Disguise Women's Disney Mulan Hero Dress Deluxe Adult Costume, Red, Small (4-6)
Mulan Costume
  • Marge Simpson – you definitely need that blue hair for this costume
Cartoon Blue for Marge Simpson Wig for Fancy Dress Costumes & Outfits Accessory
Marge Simpson Costume
  • Marvin the Martian
Sun-Staches Looney Tunes Official Marvin The Martian Sunglasses | Costume Accessory Party Favor | UV400 | One Size Fits Most
Marvin the Martian Costume
  • Merida from Brave
miccostumes Women's Princess Brave Adult Cosplay Costume with Belt Scabbard (Women M)
Merida Costume
  • Mowgli from The Jungle Book
  • Mr & Mrs Incredible – dress up the whole family including baby with these awesome matching outfits.
Disguise Mr. Incredible Deluxe Muscle Plus Size Costume 3X
Mr and Mrs Incredible Costume
  • Mack from Cars
  • Mater from Cars
Tow Mater Classic Muscle Costume - Medium (7-8)
Mater Costume
  • Megamind
  • Mr Potato Head
Disguise mens Mr Potato Head Adult Sized Costumes, Multi, XL 42-46 US
Mr Potato Head Costume

Food Costumes

  • Mountain Dew
Beverage Can Costume | Slip On Halloween Costume for Women and Men| One Size Fits All |Mtn. Dude Soda Can
Mountain Dew Costume
  • Maple Syrup
Mr. Maple Syrup Bottle Halloween Costume - Funny Adult Breakfast Food Body Suit
Maple Syrup Costume
  • M&M’s – a great group costume idea if you all go as different colors.

M&M M&M's Candy Red Silly Character Face Adult T-Shirt (Adult Small)

  • Mushroom
Spooktacular Creations Adult Inflatable Costume Full Body Mushroom Air Blow-up Deluxe Halloween Costume
Mushroom Costume
  • Mustard

Single Condiment Food Costume | Slip On Halloween Costume for Women and Men| One Size Fits All | Mustard Bottle

  • Macaron
Rasta Imposta Macaron Dress Costume Beret Choker Adult Womens Size 4-8 Macaroon Multicolored
Macaron Costume
  • Macaroni and Cheese
FUN Costumes Mac and Cheese Costume | Mac And Cheese Cup Costume, Cheese Cup Halloween Costume for Kids X-Large
Macaroni and Cheese Costume
  • Milk
Wholesome Milk Carton One-Size Halloween Costume - Funny Food Adult Unisex Suit
Milk Costume
  • Milkshake

Strawberry Milkshake Dessert Halloween Costume - Fun Food Unisex One-Size Outfit

  • Meat – a fun costume and you just have to see the meat dress!
Steak Food Costume Funny Realistic Meat Beef Outfit Adult Unisex Food Cosplay Suit Novelty Gifts for Halloween
Meat Costume
BAIKUTOUAN Beef Texture Meat Women's Sling Dress Sexy Deep V Design Tank-Dress with Adjustable Suspenders M
Meat Dress
  • Meatballs
Rasta Imposta Get Real-Spaghetti&Meatballs Red
Meatballs Costume
  • Martini
Rasta Imposta Cosmopolitan Dress Girl's Night Out Cocktail Drink Halloween Costume, Women's Size 2-8
Martini Costume
  • Muffin
Rasta Imposta Blue Cupcake Hat Costume Accessory Muffin Cake Cup Cake Accessories Hats Headwear Costumes, Adult One Size
Muffin Hat Costume
  • Margarita
elope Margarita Fiesta Party Costume Sunglasses | Standard, Yellow
Margarita Costume
  • ‘Moscow Mule
Rasta Imposta Moscow Mule with Mint and Lime Halloween Costume Vodka Ginger Beer Adult One Size
Moscow Mule Costume
  • Melon
  • Mango
  • Mousse
  • Mandarin
  • Meatloaf
  • Muesli

I’ve added some drinks in there too as the costume ideas were too fun not to include.

Animal Costumes

  • Monkey – an easy costume for adults and kids – don’t forget your bananas.
Leg Avenue Women's Cozy Monkey Adult Sized Costumes, Brown, Medium US
Monkey Costume
  • Moose – choose from moose or even a moose trophy outfit.
Rasta Imposta Loose Moose Adult Trophy Head,Multi,One Size
Moose Trophy Costume
  • Mouse
Leg Avenue Costume, Multi, O/S
Mouse Costume
  • Mule
  • Mole
  • Magpie
L'VOW Black Feather Shrug Cape Shawl Collar Halloween Costumes for Women (Black-004)
Magpie Costume
  • Manta Ray
DarkCom Onesie Christmas Pajamas Adult Animal Halloween Costume Manta Ray Cosplay One Piece Unisex Homewear Polar Fleece Sleepwear Small
Manta Ray Costume
  • Meerkat
Meerkat Costume for Adults, Soft Meerkat Onesie with Tail, Headpiece, Hand Covers and Foot Covers Medium
Meerkat Costume
  • Mockingbird
  • Mountain Lion
  • Mammoth
FUN Costumes - Woolly Mammoth Mens Costume X-Large
Mammoth Costume

Job and Uniform Costumes

  • Make-Up Artist – offer to do free makeup touch ups for ladies at the party and you’ll be popular.
  • Marine Biologist
  • Monk
ZooBoo Shaolin Unisex Monk Kung fu Robe Costume Long Gown Suit (L/175, Yellow)
Monk Costume
  • Meteorologist
  • Magician
Fun Costumes Adult Magician Costume with Top Hat X-Large
Magician Costume
  • Mime Artist – don’t forget the black and white facepaint to complete the look.
Smiffys womens Lady Mime Artist Adult Sized Costume, Black, M - US Size 10-12
Mime Artist
  • Marketing Manager
  • Mechanic – grab some overalls, wrenches, spanners and a bit of grease for an easy costume.
  • Massage Therapist
  • Media Presenter
  • Merchant Banker
  • Midwife
  • Milkman – (50’s costume)
Forum Novelties Men's 50's Milkman Costume, White, Standard
Milkman Costume
  • Mercenary
  • Minister
  • Marine
  • Matador – great options for men, women and children and fun couples costume too.
Forum Novelties Men's Matador Costume, Black, Standard
Matador Costume
  • Miner
  • Model
  • Magistrate – wear a white judges wig and long robe and you’re ready to pass judgement all night at the party.
  • Musician
  • Marching Band
Fun Costumes Drum Major Costume for Men Large
Marching Band Costume

Sport Costumes

  • Marathon
Running Runner Half Marathon Halloween Costume T-Shirt
Marathon Runner Shirt
  • Mini Golf
  • Martial Arts
Takuvan Karate Costume for Men Deluxe Plus Size Halloween Karate Gi Uniform Set with Black Belt Headband Adult Unisex
Martial Arts Costume
  • Motocross
Dreamgirl Adult Sexy Racer Costume for Women, Race Car Driver Jumpsuit, Star Your Engines Halloween Costume - Small
Motocross Costume
  • Motorcycle Racing
  • Mountain Biking

Couple Costumes that Start with M

  • Mix Tape & Boom Box
Rasta Imposta Couples Retro Mix Tape & Boom Box Costume Set Multi
Mix Tape and Boom Box Couple Costume
  • Milk and Cookies
Megartico Halloween Cookie and Milk Carton Box Costume for Couple Adult Funny Costumes
Milk and Cookies Costume
  • Mr & Mrs Potato Head
Disguise Women's Hasbro Game Mr. Mrs. Potato Head Costume Kit, White/Pink/Red/Grey, One Size
Mr and Mrs Potato Head
  • Milkman and Housewife
Milkman & 50s Housewife Halloween Couples Costume - Funny Adult One-Size Outfits
Milkman and Housewife Costume
  • Maple Syrup and Pancakes
Maple Syrup & Waffles Halloween Couples Costume - Funny Food Outfits
Maple Syrup and Pancakes Couple Costume
  • Marching Band
  • Matador and Bull
Forum Novelties Women's Totally Twosomes Lady Matador Costume, Multi, Standard
Matador and Bull Couple Costume

Or for a group costume starting with M, I am loving this M&M’s costume.


M&Ms Group Costume Set
M&Ms Group Costume

Pet Costumes Starting with M

  • Mermaid
Rubie's Mermaid Dog Costume, Large, Multicolor
Mermaid Dog Costume
  • Mickey Mouse
Rubie's Costume Co Mickey Mouse Step In Pet Costume
Mickey Mouse Pet Costume
  • Minnie Mouse
Rubie's Disney: Mickey & Friends Pet Costume, Minnie Mouse, Large (200164LXL_L)
Minnie Mouse Dog Costume
  • Mexican
Dog Clothes - Handmade Dog Poncho from Authentic Mexican Blanket (Blue, XXS)
Mexican Dog Costume
  • Minion
Rubies Minion Bob Arms Pet Suit
Minion Dog Costume

Baby Costumes Starting with M

  • Mickey Mouse
Fun Costumes Infant Snuggly Mickey Mouse Costume 0/3 Months
Mickey Mouse Baby Costume
  • Minnie Mouse
FUN Costumes Infant Sweet Minnie Mouse Costume 12/18 Months
Minnie Mouse Baby Costume
  • Monster
Rubie's Noah's Ark Pinky Winky Monster Romper Costume, Pink, 6-12 Months
Monster Baby Costume
  • Mustard
AOUYOA Baby Twins Bodysuits Yummz Ketchup Mustard Boy Clothing Baby Girl Romper Sushi Popcorn Long Sleeve Set (KM twins long 3m)
Mustard Baby Costume
  • Monkey
Brown Monkey Around Costume - 3-6 Months (1 Pc) | Outfit for Toddlers - Perfect for Dress-Up, Parties & Playtime
Monkey Baby Costume
  • Mouse
Rubie's Child's Mouse Costume Jumpsuit and Headpiece, As Shown, 6-12 Months
Mouse Costume

Pregnancy Costumes

It can be hard to find something to wear as a costume during pregnancy. Here are two easy ideas or why not go as a mama to be!

  • Monster eye
Crazy Dog Womens Maternity Monster Halloween Novelty T Shirts Soft Comfortable Funny Shirts for Mothers to be Cute Pregnancy Announcement Halloween Costume Heather Green L
Monster Eye Costume


Our Little Minion Maternity Soft T Shirt Black MD
Maternity Minion Costume

International Costumes

  • Malaysia
  • Madagascar
  • Maldives
  • Malawi
  • Mauritius
  • Mexico
  • Micronesia
  • Monaco
  • Malta
  • Mongolia
  • Morocco
  • Montenegro
  • Mozambique

Dup in the national dress of one of the M countries above or even their national sporting colors. 

Rubie's costumes Heroes and Hombres, Hombre Poncho Sombrero adult sized costumes, Red, Extra-Large US
Mexican Costume

Costumes in Colors Starting with M

  • Magenta
  • Magnolia
  • Maroon
  • Mauve
  • Mustard

The letter M is not a easy one for a color dress up but there are some options above. If you get really stuck for a color to wear, why not consider wearing a miniskirt in one of the colors above if you really get stuck for a M costume idea.

Find all the costumes featured in this article in the one place: right here.

I sincerely hope that you have found something awesome to wear to your next special event from our costumes beginning with M. 

Don’t miss our full list of the best dress up party themes for adults.

Check out our ultimate guide to the best big guy Halloween costume ideas.

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Costumes That Start With M

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