Whether you need a Halloween costume for 8-year-olds, a dinosaur costume or maybe you just want to know what the popular Halloween costumes are this year, there’s no better place to start than Amazon. You’ll find tons of costume ideas and any accessories you might need as well. Plus, if your kids are anything like ours and decide at the last minute he or she wants to be a ninja, not a firefighter, those quick shipping and free returns perks will be game-changers. Scroll down to see the best kids’ Halloween costumes on Amazon. 


The ever-popular skeleton can be scary or it can be sweet and we like the latter. This cozy shirt and pant set is perfect for a Halloween at home. 

Sizes: 5Y-12Y

Buy it here, $8.99 & up. 

Peppa Pig

Your toddler or preschool kid will love dressing up as Peppa Pig. We just love those striped stockings! 

Size: 2T-4T

Buy it here and here, $24.28 & up.

Unicorn Costume

Unicorn's are still a favorite with little kids, and this adorable costume comes in six different color combos! The horn headband is included. 

Sizes: 1Y-6Y

Buy it here, $21.95 & up. 


Even the youngest person in your family can get in on the action with this classic pumpkin Halloween costume. 

Sizes: 12 months-7Y

Buy it here, $16.99.


Would it be Halloween without seeing a few dozen Elsa’s out and about? We think not. This awesome set comes with everything your Ice Queen will need to look the part, and there’s even a blond ponytail included. 

Sizes: 2T-11Y

Buy it here, $26.89.

Dressing up as a first responder is always a big hit with young kids. This Melissa and Doug firefighter costume will stand up to pretend play for months to come.  

Sizes: 36 months-6Y

Buy it here, $25.99.

Wonder Woman

Wonder Woman 1984 is still expected to premiere in October of this year, so it's perfect timing for your own Wonder Woman. She'll get plenty of wear out of this sweet costume that comes with a dress, belt, gauntlets, tiara, and even shin guards. Halloween night may be the first of many times she saves the neighborhood.

Sizes: S, M, L

Buy it here, $20.73n & up.


Super Mario

You've been gaming '90s-style with your kids since March, so how about this spot-on Super Mario costume, complete with hat, mustache, gloves and a one-piece jumpsuit? And, yes, that is an inflatable belly! This makes a great buddy costume, too, if you have a Luigi in the house! Plus, you can’t beat the price.

Sizes: S, M, L

Buy it here, $19.97.


How adorable is this scarecrow costume? All the accessories you see here are included (except the tights and shoes), so you’ll be all set when Halloween night arrives. 

Sizes: 3T-6T

Buy it here, $20.83 & up.


A popular choice for preschool kids, this Gekko costume is listed as an Amazon’s choice and a #1 bestseller, and with over one thousand reviews, we think this is one a winner when it comes to Halloween costumes for kids. 

Sizes: 2T-6T

Buy it here, $21.01

Hermoine Granger

Harry's smart and spunky BFF is a huge hit with girls who are reading the Harry Potter series. This robe is affordable, has the Gryffindor crest on the front and is offered in three sizes. You'll need to buy the accessories to complete the look, like this tie and this wand

Sizes: S, M, L

Buy it here,  $11.78.

Popular Poppy

Trolls World Tour was a huge hit this year, which means Poppy, Branch, Bridget, and DJ Suki will be trending this Halloween. This darling Poppy dress may get some wear all on its own, and she’ll definitely want to put her hair up for fright night!

Sizes: 3T-12Y

Buy it here, starting at $21.32.


Dressing up like a martial arts master is always a big hit on Halloween. This costume comes with the black jumpsuit and hood, ninja star and belt. 

Sizes: S, M, L (ages 4-9)

Buy it here, $23.34.


Descendants 3 fans will love this Mal costume! While the wig is not included, you’ll get the gloves, the moto jacket, the jumpsuit and a vest. Will your kid defeat the Queen of Mean this Halloween? 

Sizes: 4T-12Y

Buy it here, $30.23.


Do you have a kid that’s obsessed with outer space? Then this Astronaut suit is just the thing! Choose from three different colors (orange, white and pink) and each suit comes with authentic NASA patches, a cap, and ankle cuffs with adjustable velcro straps. 

Sizes: 6 months-14Y

Buy it here, $29.99.

Baby Owl

Whooo will be the cutest baby on Halloween night? Yours, if you order this adorable owl costume. Not only do the colors pop, but it’s comfy, cozy, and has leg snaps to make diaper changing easy.

Sizes: 6 months-18 months

Buy it here, $30 & up.

Black Panther

This one is bittersweet after the loss of actor Chadwick Boseman, but what better way to pay homage than dressing up as his iconic character Black Panther? One of the most important and popular superhero movies ever made, we think this one is going to be a popular choice this year. 

Sizes: S, M, L

Buy it here, $28.99.



Another very popular choice when it comes to costume ideas is a dinosaur. This fun version is bright and cheerful and looks super warm for a cold Halloween night. It even comes with the plush egg. 

Sizes: 12-18 months, 18-24 months, 3T, S, M

Buy it here and here, $23.99 & up.

—Gabby Cullen

All images courtesy Amazon

Editor’s note: At the time of publication, all items were available for purchase. 



20 Halloween Costumes for Twins (Older Siblings & Parents too!)

The Most Popular Halloween Costumes for Kids in 2020

First-Ever Adaptive Disney Halloween Costumes Now Available on shopDisney.com

20 Halloween Costumes from the ’70s, ’80s, & ’90s That We Miss … Kinda