Skip to main content
Accessories
Apparel
Clearance
Collectibles
Costumes
Exclusive
Gifts for Kids
Gifts for Men
Gifts for Women
Home & Office
Movies
Toys
TV
Video Games
Sale!
.COM (US)
.CA (CA)
.CO.UK (UK)
.COM.AU (AU)
.COM.MX (MX)
.EU (EU)
The biggest selection of costumes in the world!
(507) 386-8388
Contact Us
Live Chat
Help
My Account
My Account
My Orders
Saved For Later
Sign Out
Sign In
Sign Up
Shopping Cart
Pre-Order Cart
Adult Costumes
View All Adult Costumes
Men's Costumes
Women's Costumes
Plus Size Costumes
Plus Size Men's Costumes
Plus Size Women's Costumes
Sexy Costumes
Kids Costumes
View All Kids Costumes
Adaptive Costumes
Baby Costumes
Boy Costumes
Girl Costumes
Teen Costumes
Toddler Costumes
Exclusive
View All Exclusives
A League of Their Own Costumes
Ace Ventura Costumes
Back to the Future Costumes
Care Bears Costumes
Carmen Sandiego Costumes
Clueless Costumes
Coming to America Costumes
Coraline Costumes
Dragon Ball Z Costumes
Edward Scissorhands Costumes
ET Costumes
Forrest Gump Costumes
Garfield Costumes
Ghostbusters Costumes
Grease Costumes
Hocus Pocus Costumes
Hotel Transylvania Costumes
Jurassic Park Costumes
Karate Kid Costumes
KISS Costumes
Labyrinth Costumes
Lilo & Stitch Costumes
Mean Girls Costumes
Monsters Inc. Costumes
Munsters Costumes
My Little Pony Costumes
Nacho Libre Costumes
Pete the Cat Costumes
Plants vs Zombies Costumes
Princess Bride Costumes
Raggedy Ann Costumes
Rainbow Brite Costumes
Richard Simmons Costumes
Sailor Moon Costumes
Sesame Street Costumes
Sharkboy & Lavagirl Costumes
Shrek Costumes
Smurfs Costumes
Teletubbies Costumes
The Handmaid's Tale Costumes
Top Gun Costumes
Trolls Costumes
WWE Costumes
Costume Ideas
View All Costume Ideas
New 2026 Costumes
Costume Apparel
20s Costumes
50s Costumes
70s Costumes
80s Costumes
90s Costumes
Alice in Wonderland Costumes
Alien Costumes
Animal Costumes
Anime Costumes
Avatar the Last Airbender Costumes
Avengers Costumes
Batman Costumes
Beetlejuice Costumes
Bluey Costumes
Chucky Costumes
Cowboy Costumes
Dinosaur Costumes
Disco Costumes
Disney Costumes
Flapper Costumes
Food Costumes
Fortnite Costumes
Funny Costumes
Game of Thrones Costumes
Harry Potter Costumes
Historical Costumes
Inflatable Costumes
Inside Out Costumes
Little Red Riding Hood Costumes
Minecraft Costumes
Minions Costumes
Mortal Kombat Costumes
Music Festival Costumes
Patriotic Costumes
Pet Costumes
Pirate Costumes
Pokémon Costumes
Religion Costumes
Renaissance Costumes
Roman & Greek Costumes
Scary Costumes
Snow White Costumes
Sports Costumes
Storybook & Fairytale Costumes
Stranger Things Costumes
Superhero Costumes
TV / Movie Costumes
Uniform Costumes
Video Game Costumes
Wicked Costumes
Wizard of Oz Costumes
Zombie Costumes
Couples Costumes
Group Costumes
Accessories
Accessory Kits
Backpacks
Belts
Boots/Shoes
Capes
Costume Jewelry
Face Masks
Fishnet Stockings
Glasses / Sunglasses
Gloves
Halloween Clothes
Hats
Headbands
Leggings
Makeup
Fake Blood
Masks
Mustaches / Beards
Petticoats
Purses
Scarves
Socks / Slippers
Toy Weapons
Trick Or Treat Bags / Pails
Wigs
Wings
Decorations
View All Decorations
Design Program
Animatronics
Door Decorations
Fog Machines
Giant Halloween Decor
Giant Halloween Inflatables
Halloween Archways
Halloween Graveyard
Halloween Lights
Halloween Props
Indoor Decorations
Inflatable Decorations
Kid Friendly Decor
Outdoor Decorations
Pumpkin Décor
Scary Decorations
Skeletons & Skulls
Spiders & Spider Webs
Thanksgiving Decorations
Trunk or Treat
Sale!
Sale
Clearance
My Account
My Account
My Orders
Saved For Later
Sign Out
Sign In
Sign Up
Contact Us
Live Chat
Help
Our Other Site
FUN.com
In Other Countries
HalloweenCostumes.ca
HalloweenCostumes.co.uk
HalloweenCostumes.com.au
HalloweenCostumes.com.mx
HalloweenCostumes.eu
Main Menu
Home
Scary Costumes
See
Mad Scientist Costumes
Kid's Mad Scientist Costumes
Kid's Mad Scientist Costumes
1 - 4
of 4
Filter (4)
Sort By
Popular
Price (low to high)
Price (high to low)
Savings
New
1 - 4
of 4
Sort By
Popular
Price (low to high)
Price (high to low)
Savings
New
Main Content
Sale - 77%
Made By Us
Kid's Mad Scientist Costume
$34.99
$7.99
-
$9.99
Sale - 43%
Kid's Scary Mad Scientist Costume
$39.99
$22.99
-
$24.99
Clearance
Made By Us
Kid's Raving Mad Scientist Costume
$29.99
$19.99
-
$29.99
*
Out of Stock
Made By Us
Exclusive
ODD SQUAD Child Scientist Costume
$39.99
Filter
