10 Most Popular Kids Halloween Costumes

Halloween is here are you’ll want to make sure you have the most popular kids Halloween costumes of 2021!

 

Whether you’re looking for a princess costume, a superhero costume, a baby costume, or the cutest unicorn costume, I’ve done the work for you!

 

Here are the most popular kid’s Halloween costumes of 2021! Superhero costumes, princess costumes, baby costumes, and more!

 

*This post may contain affiliate links, which means I receive a small commission, at no extra cost to you, if you make a purchase using this link. I only recommend products I love or would personally use.

 

 

Baby Halloween Costumes

Cute Monkey Costume

How adorable is this baby monkey costume? Don’t you just want to squeeze him? This unisex Halloween costume for babies is 100% polyester and comes in sizes XS (0-6 months), S (6-12 months), M (12-18 months), and L (18 months-2T).

 

 

Dumbo Elephant Costume

Ok, so there is baby elephant cute, and then there is baby Dumbo the Elephant costume cute! I LOVE this baby costume! This infant Halloween costume comes in 2 sizes: 6-12 months and 12-18 months and is 100% polyester. It does need to be hand-washed as well.

 

 

Fireman Costume

This fireman costume for toddlers is absolutely adorable! The costume comes with everything this little guy is wearing with the exception of the socks. You can choose from sizes 6-12 months and 12-18 months.

 

 

 

 

Infant Costumes for Disney Lovers

If you love all things Disney, you’re going to love these costumes. You can choose between Red from the Incredibles, Woody from Toy Story, Winnie the Pooh, Tigger, Monsters Inc, Jack Skellington, and Mickey Mouse. For sizes, you can choose from 0-3 months, 3-6 months, 6-9 months, 9-12 months, 18 months, and 24 months. The costumes are made from a cotton/polyester blend and they’re machine washable.

 

 

 

 

 

 

Toddler Halloween Costumes

Astronaut Costume

For the cute little astronaut in your life, this astronaut costume is sure to please! This Halloween costume comes in sizes 3T, S (5-7 years), M (8-10 years), and L (10-12 years). The fabric part of the costume is made of 100% polyester.

 

 

Unicorn Costume

Unicorns are all the rage right now! This adorable unicorn Halloween costume will be the hit of any Halloween Costume Party! This unicorn costume comes in sizes 1-2T, 3T-4T, 5-6 years, 7-8 years, and 9-10 years. The costume is made of 100% polyester and will need to be hand-washed. One thing I love about this costume if that your kiddo can play with just the unicorn headband after Halloween if they want.

 

 

Police Officer Costume

This Police Officer costume is not only great for Halloween, but also for everyday dress-up! This Halloween costume is made of 100% polyester and is machine washable. This costume is great for both boys and girls. You can choose from the following sizes: 2T (1-2 years), 4T (2-3 years), S (4-6 years), M (7-10 years), L (11-14 years), XL (14+).

 

 

 

Gekko Costume from PJ Masks

PJ Masks is not a popular show in our house, but I know for some, it’s a favorite. Check out this adorable Gekko costume from PJ Masks! This costume is 100% polyester and comes in sizes 2T, 3T-4T, and size 4-6. You can also get a Catboy costume as well!

 

 

 

Witch Costume

And then there is the infamous witch costume! This cute little witch costume is purple and black, the perfect Halloween colors! This costume is made of 100% polyester and comes in sizes toddler (3-4), small (5-7), medium (8-10), and large (10-12). Just to note- the costume does not include the broom.

 

 

Princess Costume

Almost every little girl dreams of being a princess. This pink princess costume will make her dreams of being a princess come true! This set comes in 4 different colors and includes different accessories with each set. You can choose from sizes 2-3T, 3-4T, 4-5T, 5-6 years, 7-8 years, 9-10 years. 

 

 

The Flash Superhero Costume 

For the superhero in your life, check out this awesome The Flash Superhero costume. The costume is made of 100% polyester and comes in sizes toddler, small, medium, and large (check the sizing chart for details). This superhero costume is a licensed DC Comics costume.

 

 

Marshall from Paw Patrol

This Marshall costume is perfect for any Paw Patrol fan. It comes in two sizes: toddler and XS. 

 

 

 

 

 

 

 

 

Kids Halloween Costumes

Astronaut Costume

For the cute little astronaut in your life, this astronaut costume is sure to please! This Halloween costume comes in sizes 3T, S (5-7 years), M (8-10 years), and L (10-12 years). The fabric part of the costume is made of 100% polyester.

 

 

Unicorn Costume

Unicorns are all the rage right now! This adorable unicorn Halloween costume will be the hit of any Halloween Costume Party! This unicorn costume comes in sizes 1-2T, 3T-4T, 5-6 years, 7-8 years, and 9-10 years. The costume is made of 100% polyester and will need to be hand-washed. One thing I love about this costume if that your kiddo can play with just the unicorn headband after Halloween if they want.

 

Police Officer Costume

This Police Officer costume is not only great for Halloween, but also for everyday dress-up! This Halloween costume is made of 100% polyester and is machine washable. This costume is great for both boys and girls. You can choose from the following sizes: 2T (1-2 years), 4T (2-3 years), S (4-6 years), M (7-10 years), L (11-14 years), XL (14+).

 

 

T-REX Dinosaur Costume

These T-REX Dinosaur Costumes make me laugh every single year at Halloween.  You need to know that this costume does have a fan inside that runs continuously to keep it inflated. This dinosaur Halloween costume is made of 100% nylon and fits kids up to 54″ in height.


 

 

Gekko Costume from PJ Masks

PJ Masks is not a popular show in our house, but I know for some, it’s a favorite. Check out this adorable Gekko costume from PJ Masks! This costume is 100% polyester and comes in sizes 2T, 3T-4T, and size 4-6. You can also get a Catboy costume as well!

 

 

 

Witch Costume

And then there is the infamous witch costume! This cute little witch costume is purple and black, the perfect Halloween colors! This costume is made of 100% polyester and comes in sizes toddler (3-4), small (5-7), medium (8-10), and large (10-12). Just to note- the costume does not include the broom.

 

 

Princess Costume

Almost every little girl dreams of being a princess. This pink princess costume will make her dreams of being a princess come true! This set comes in 4 different colors and includes different accessories with each set. You can choose from sizes 2-3T, 3-4T, 4-5T, 5-6 years, 7-8 years, 9-10 years. 

 

 

The Flash Superhero Costume 

For the superhero in your life, check out this awesome The Flash Superhero costume. The costume is made of 100% polyester and comes in sizes toddler, small, medium, and large (check the sizing chart for details). This superhero costume is a licensed DC Comics costume.

 

 

 

Butterfly Costume

This butterfly kids costume is beautiful! This costume is designed for kids from ages 3-15. That means it’s an incredibly versatile Halloween costume that could be used for more than one kiddo through the years. The costume is made of polyester.

 

 

 

 

Even if you’re going to skip trick or treat and do some other fun Halloween activities with your kids, these Halloween costumes are super cute and fun! Which popular kids Halloween costume will your kiddo be wearing for Halloween this year?

 

MORE Halloween Fun!

Halloween Trick-or-Treat Alternatives

Super-Cute Halloween Costumes

Fun Fall Activities for Families

Fun Halloween Books for Kids

 

 

 

 

 

 

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