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The best ideas for your Baby BOO this Halloween!

45 Of The Best Baby Costume Ideas For Halloween

45 baby costume ideas
Brit + Co

This Halloween might be your infant’s first, so why not go all out when it comes to their baby costumes? Maybe he or she’s a wee bit young for candy recipes and gummies, but that doesn’t mean you have to sidestep dressing up your kiddo to show ’em off during trick-or-treat time. And, let’s face it: Anything miniaturized is freakin’ adorable. Here are some of the sweetest and most creative infant Halloween costumes to either DIY or buy for your baby this spooky season.


Popcorn Bucket

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Popcorn Bucket + Usher Costume

Grab your baby carrier and get ready to hack this on-the-go popcorn bucket. The best part? The ensemble is totally temporary, so you can transition from daytime to trick-or-treating in a snap.

Khaleesi1 Costume

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"Game of Thrones" DIY Khaleesi Costume

Before she was the Mother of Dragons, she was just a ‘lil BB of dragons.

Jurrassic World Costume

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Baby Dino From "Jurassic World" Costume

No scary T. Rex here. In that plush spiked onesie, this baby dino is the only Jurassic World reptile we’ll be running toward. (via Brit + Co)

Sunshine Costume

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Baby Sunshine + Rainbow Costume

No rainy days here! Complement your ray of sunshine in a technicolored rainbow ensemble for the perfect mommy and me getup.

DIY Malala Yousafzai Costume

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DIY Malala Yousafzai Costume

At 25 years old, Pakistani activist Malala Yousafzai is a widely loved and globally respected activist, focused specifically on the right to education. Honor her work by outfitting your tiny one in her likeness.

Princess Peach Toadstool Costume

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Princess + Toad Costume

This mom and baby costume is a video game combo that will make any Mario-lover happy. Coordinate your costume with your kiddo as Princess and Toad to take your Halloween game a level up.

DIY Handmaid\u2019s Tale Costume

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DIY "Handmaid’s Tale" Costume

Hailed as a feminist work since its publication in 1985, Margaret Atwood’s novel The Handmaid’s Tale makes for a slightly dark, dystopian costume option for your feminist tot.

DIY Suffragette Costume

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DIY Suffragette Costume

These OG feminists fought for our right to vote. Hell to the YES. To recreate this late 19th-century look, you’ll need a bonnet, a simple white dress, and a DIY “Votes for Women” sash.

Where the Wild Things Are Costume

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"Where the Wild Things Are" Costume

This costume set is a DIY + buy combo. You can purchase your baby’s Max costume and DIY your own with some distressed leggings, a striped tee, a homemade tail, and horns.

hillary clinton Baby Costume Ideas

Brit + Co

DIY Hillary Clinton Costume

A rabble-rouser from the start, Clinton has first lady, senator, secretary of state, *and* first female presidential candidate on her resume.

DIY Yayoi Kusama Costume

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DIY Yayoi Kusama Costume

Avant-garde artist Yayoi Kusama is a personal hero of ours, and it goes beyond a love of patterns and polka dots.

Siracha and Taco Costume

Brit + Co

Sriracha + Taco Costume

Hot sauce and Mexican food are a match made in heaven, and so is this costume duo for you and your youngster.

Sesame Street Baby Costume Ideas

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Elmo Costume

Elmo is an obvious choice for your child. Just add in Big Bird and you have the ultimate Sesame Street duo.

Curious George baby costume

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DIY "Curious George" and The Woman in the Yellow Hat Costume

That monkey suit? It’s too good.

Rosie the Riveter Costume

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Rosie the Riveter Costume

Rosie the Riveter may just be the most iconic symbol of the women’s movement, so why not give your little one a jump-start on creative female empowerment?

DIY star wars BB8 Costume Baby Costume Ideas

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DIY BB8 Costume

For all the Star Wars fans, with love.

Baby Dori Halloween Costume

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DIY Finding Dory Costume

Baby Dory has huge pink-colored eyes, so this is a must for her costume. Use felt to create the eyes and hot-glue them onto the front of the onesie.

RBG Costume Baby Costume Ideas

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Ruth Bader Ginsburg Costume

Baby RBG is giggly, smiley, and a Supreme Court #girlboss.

Ewok Costume Baby Costume Ideas

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"Star Wars" Ewok Costume

We didn’t think Ewoks could get any cuter… until we laid eyes on this guy! All those furry accents will make you ready for a cuddle sesh in no time.

Top Gun Family Costume

Brit + Co

"Top Gun" Costume

Who doesn’t love the ’80s classic Top Gun? Complete your trio with a pint-sized Goose getup designed for maximum cuteness.

Darth Vader Bodysuit

Amazon

Batman Baby Costume

If you're a fan of the winged crusader, you'll love dressing your little one up in this cute baby costume!

The Incredibles

Walmart

Disguise "The Incredibles" Costume

Don’t let the mini getup fool you — this little guy has some incredible superpowers.

Rubie's Wonder Woman Costume

Amazon

Rubie's Wonder Woman Costume

She’s strong. She’s confident. She’s fierce… And she’s not yet one! Here comes your little Wonder Woman!

Baby Penguin Costume

Amazon

Baby Penguin Costume

If your little one can't stop moving whenever you put on Happy Feet then you should get this cute baby penguin costume for them to wear for Halloween! (via Amazon)

monkey costume

Amazon

Baby Monkey Costume

This little baby monkey costume is too adorable!

Corn Hat Baby Costume

Etsy

Candy Corn Hat Baby Costume

Don’t miss out on the photo-op of the year by dressing your newborn as this perfectly themed Halloween treat. It’s the sweetest costume out there.

Infant T-Rex Costume

Halloween Costumes

Infant T-Rex Costume

RAWR - the infant T-Rex is coming through! Make a statement with this green dino costume for Halloween.

The Cat in the Hat Costume

Halloween Costumes

The Cat in the Hat Infant Costume

The Cat in the Hat is a classic Dr. Suess book that's stood the test of the time. Buy this costume so your baby can become our favorite kooky titular character for Halloween!

Infant Bumble Bee Costume

Halloween Costumes

Infant Bumble Bee Costume

Have you ever noticed how precious bumble bees really are? If you'd care not to get close to them, you'll find it hard to stop hugging your baby when you see them in this costume.

Infant Care Bears Cheer Bear Costume

Halloween Costumes

Infant Care Bears Cheer Bear Costume

Babies are super sweet so it makes sense to dress your infant as Cheer Bear from the Care Bears franchise.

Baby Lion Cub Costume

Halloween Costumes

Baby Lion Cub Costume

This baby lion cub costume reminds us ofThe Lion King. To have your own little Simba right at home, be sure to get this costume in time for Halloween!

Avocuddles Infant Costume

Halloween Costumes

Avocuddles Infant Costume

It may be slightly corny but this avocuddles infant costume is too cute to leave off our list!

Clueless Cher Infant Costume

Halloween Costumes

Clueless Cher Infant Costume

Your baby probably can't say "As if" yet but you've probably caught an eye roll here and there. Dress her in Cher's stylish outfit for Halloween to match her energy.

Wonderland Alice Infant Costume

Halloween Costumes

Wonderland Alice Infant Costume

Chances are your baby is crawling around the house and finding ways to get into things you thought were out of reach. Encourage her curious nature by dressing her as Alice from Alice In Wonderland.

Sweet Chef Infant Costume

Halloween Costumes

Sweet Chef Infant Costume

Give yourself a break from the kitchen by letting this costume transform your baby into a Michelin-star rated chef.

Spider-Man Infant Costume

Halloween Costumes

Spider-Man Infant Costume

We don't need another Spider-Man unless they look like your sweet baby for Halloween.

Exclusive Disney Up Russell Costume For Infants

Halloween Costumes

Exclusive Disney Up Russell Costume For Infants

Little Russell stole our hearts in Pixar's Up so we know your baby is about to do the same once people see them in this costume!

Humpty Dumpty Infant Costume

Halloween Costumes

Humpty Dumpty Infant Costume

Okay, be honest - you'd love to see your baby rolling around in this Humpty Dumpty costume.

Infant Cinderella Prestige Costume

Halloween Costumes

Infant Cinderella Prestige Costume

Cinderella is the perfect Halloween costume for anyone - including your baby!

SpongeBob SquarePants Infant Costume

Halloween Costumes

Spongebob Squarepants Infant Costume

Your baby will be ready in no time once you dress them as Spongebob Squarepants for Halloween!

Infant Baby Shark costume

Halloween Costumes

Infant Baby Shark Costume

Baby Shark's legacy lives on with this darling costume!

Loaf of Bread Infant Costume

Halloween Costumes

Loaf of Bread Infant Costume

If you think your baby is the best thing since sliced bread, you need to buy this loaf of bread infant costume for them.

Santa Baby Costume

Halloween Costumes

Santa Baby Costume

Santa Claus never looked cuter than this baby costume!

Bunny Infant Costume

Halloween Costumes

Bunny Infant Costume

Easter may be long-gone but that doesn't mean your baby can't dress as a cute bunny for Halloween!

beetlejuice baby costumes

Hello Bello

Hello Bello Beetlejuice Diapers

Have a little that just won't dress up — or doesn't even fit in a costume yet? These Beetlejuice themed diapers are an adorable way to keep baby on-theme this Halloween!

Loving these baby costume ideas? Check out our Halloween page for more BOO-zy Cocktail Recipes, Couples' Costumes, and Tasteful Halloween Decor that will make this Halloween the best yet!

Brit + Co may at times use affiliate links to promote products sold by others, but always offers genuine editorial recommendations.

This post has been updated.