Trick or Treat: The Best Halloween Costumes for Babies

From skeletons to avocados, these costumes are adorable with a dash of spooky

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Verywell Family / Danie Drankwalter

As a parent, dressing your baby up for Halloween is so much fun because no matter the costume, little ones always look downright adorable. From simple costumes to dressing up in several pieces, there are plenty of Halloween costumes your little one can rock on the spooky night.

Reviewed & Approved

The Carter's Little Avocado Halloween Costume features three pieces to keep your baby the warmest (and cutest) avocado on the street. For twins, we recommend Pottery Barn Kids Thing 1 & Thing 2.

Even though your baby would look cute in just about anything, it is fun to put some thought into a baby Halloween costume. You'll want to consider sizing, comfort, and trendiness before making a final decision. We carefully considered design, material, ease of cleaning, maintenance, additional features, sizing, and value when reviewing products.

Here are the best Halloween costumes for babies to make their first Halloween a memorable one. 

Carter's Little Avocado Halloween Costume

Carter's Little Avocado Halloween Costume

Courtesy of Carter's

The Carter's Little Avocado Halloween Costume ranks high on our list because it includes all the pieces you need for dressing up. The set includes a white long-sleeved shirt, green and white striped high socks, and a zip-up onesie with a hood designed to look like an avocado.

The shirt and socks are lightweight and breathable while the onesie is thick, and made from fleece to keep your little one warm on Halloween night. This costume is available for babies between 3 and 24 months old and is washing machine safe. 

Pottery Barn Kids Thing 1 & Thing 2

Baby Dr. Seuss’s™ Thing 1 and Thing 2 Baby Costume

Courtesy of Pottery Barn Kids

There are lots of fun twin costumes out there, but Dr. Seuss’ Thing 1 and Thing 2 will forever be among the best. These costumes come with mittens, a onesie with side snaps for easy diaper changes, and a hat for blue hair.

Costume size ranges from 0-6M to 12-24M, with the smaller sizes having a footie design and the larger size having a pants design for safe running while trick or treating.

Singcoco Skeleton Halloween Costume

Singcoco Skeleton Halloween Costume

Courtesy of Singcoco

You can’t go wrong with a skeleton costume, whether you’re a baby or a festive adult. Sizes for this costume range from 0-3 months to 18-24 months and there are four similar styles available, either as a onesie with a hood or a onesie with a hat.

These costumes are made from breathable cotton but are still pretty thin, so if temps drop in your area around Halloween, you'll want to layer up your little one to help them stay warm.

HalloweenCostumes Peacock

HalloweenCostumes Peacock

Courtesy of HalloweenCostumes

What’s more stunning than a peacock’s feathers? A baby dressed up like a peacock. This costume is over the top in all of the best ways. It comes with four pieces: a jumpsuit, tail, booties, and a hood with a beak. The costume is made from 100% polyester and has a zipper up the back as well as buttons on the legs for easy diaper changes.

The only thing that’s tricky about it is the sizing, so you’ll want to have your measuring tape handy to make sure you order the correct size for your baby bird.

Disney Toy Story Woody Costume

Disney Woody Costume

Courtesy of Disney

This Woody costume is absolutely adorable, but the best part about it is that it has a simple, comfortable design that won’t irritate your baby. It comes with a long sleeve onesie designed to look like Sheriff Woody’s outfit and a little cowboy hat to complete the look.

You can either let your baby rock the costume as is or add a pair of jeans and boots to complete the look. It’s available in a variety of sizes for babies as young as newborns and up to 24 months old. 

Pottery Barn Kids Baby Pumpkin Halloween Costume

Pottery Barn Kids Baby Pumpkin Halloween Costume

Courtesy of Pottery Barn Kids

There really isn't a more classic, timeless Halloween costume than a jack-o'-lantern. You can find jack-o'-lantern costumes pretty much anywhere, but we especially love this one because it isn’t bulky. It’s made from super soft fleece material, making it very comfortable for babies.

It’s available in sizes ranging from 0-6M to 12-24M, and it comes with the little pumpkin-top hat and the jumper, which can be worn over a shirt and pants of your choosing.

MICHLEY Unisex Baby Animal Costume

MICHLEY Unisex Baby Animal Costume


Parents looking for a costume that is sure to be cozy will love this little panda jumper that zips up the front and features an adorable hood. It has soft elastic cuffs along the wrists and ankles, a safety tab over the zipper, and is made from soft, warm flannel.

While the costume itself is easy to put on and take off, it’s not meant to be worn by babies under 2 months old, and parents should pay attention to the sizing chart before ordering to ensure they get the correct size.

PatPat Baby 2-piece Bat Halloween Costume

PatPat Baby 2-piece Bat Halloween Costume

Courtesy of PatPat Baby

Bats don’t have to be scary, and this costume is proof of that. It’s available in a range of sizes for babies from newborn to 12 months old, and there are three color options. The two-piece costume includes a long sleeve jumper with little bat wings stitched in under the arms and a hat that features bat ears and ties on under the chin.

Party City Max Costume - Where the Wild Things Are

Party City Max Costume - Where the Wild Things Are

Courtesy of Party City

Let the wild rumpus start! If "Where The Wild Things Are" is a family favorite bedtime story, then this adorable Max costume for Halloween will be an instant hit. It’s available in three sizes for babies, from newborn to 24M, and includes a jumpsuit and hood to match Max’s wild thing pajamas.

All the details are included, too, from the furry tail to the crown, down to the little whiskers. It’s perfect for making Halloween mischief of one kind or another.

Aeromax Jr. Astronaut Romper, White

Aeromax Jr. Astronaut Romper, White

Courtesy of Maisonette

Since space travel is all the rage these days, dress your baby up as a little astronaut with this adorable costume. It’s a one-piece jumper featuring a NASA patch, a little utility belt, and a collar just like a real spacesuit. It has snaps for easy changes and is made from soft, machine-washable fabric.

Final Verdict

You could dress your baby up in a potato sack and they’d be as cute as ever, so any one of these costumes is a great pick. That being said, you can’t go wrong with a jack-o'-lantern costume (view at Pottery Barn Kids), because it’s a classic that will never go out of style.

What to Look for in Halloween Costumes for Babies


Some parents have a “the trendier the better” mentality, some want their kids to stand apart from the trends, and others fall somewhere in between. If you’re looking for something really trendy, consider a character from a recent well-loved movie or a popular object in costume form (like an avocado).

For the caregivers who fall in the middle, go with something timeless like a jack-o'-lantern or a classic character like Mickey Mouse. If you like something totally different, go with an animal or character that wouldn’t normally be so cute if it weren’t for your baby, like a skunk or a spooky character from a movie. 


Unless you want to spend Halloween soothing a fussy baby, you’ll want to make sure the costume you buy is comfortable. Make sure all of the fabric touching your baby’s skin is soft, not scratchy or rough, won’t make them too warm or cold, and doesn’t limit movement at all. 

If it is typically chilly in your part of the world on Halloween, consider sizing up, so your little one has plenty of room for you to comfortably add layers underneath their costume. This way they'll be warm and toasty without imposing on their spooky look.


Clothing sizes are rarely consistent across baby brands, and the same is true of costume brands. Costumes are typically sized in either two-, three-, or six-month increments. It’s especially important to get sizing right for older babies who are walking; you don't want a big, baggy costume to trip them up. Check the manufacturer's sizing guide (and return policy) when purchasing.

Frequently Asked Questions

  • What should you avoid in baby costumes?

    Make sure that your baby's costume won't interfere with their breathing in any way. Don't put a mask or face covering on your baby. Avoid costumes that could cause your baby to overheat. Dress your baby in layers that you can easily add and subtract depending on weather conditions.

  • How do you keep a baby safe while in a costume?

    Buy only flame-resistant costumes and accessories to keep your baby safe. Babies are likely to fall asleep at some point on Halloween, so it's important that their costume is safe for sleep. Avoid accessories like capes or hats that could get tangled or block baby's breathing. Dressing your baby in layers that you can easily remove prevents them from overheating, which can be dangerous.

  • How old should a baby be before you dress them in costume?

    You can dress a baby of any age in a costume. However, it's important that the costume is both safe and comfortable for your baby. A young baby's costume should fit like regular baby clothes and be made of breathable, flame-resistant fabric. It may be wise to bring a back-up costume or an extra outfit in case of accidents like spit-up or diaper blowouts.

  • Should a baby costume be flame-resistant?

    Yes, your baby's Halloween costume should be flame-resistant. It is safest if all parts of the costume are flame-resistant, but also avoid large accessories. These may become entangled and pose a strangulation risk, especially if your little one dozes off.

Why Trust Verywell Family

Ashley Ziegler is a full-time parenting writer and mom to a 2-year-old and a 4-year-old. She has personal experience in researching and purchasing a variety of children’s products and key considerations she used when selecting these recommendations include design, age appropriateness, and user reviews. 

2 Sources
Verywell Family uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Read our editorial process to learn more about how we fact-check and keep our content accurate, reliable, and trustworthy.
  1. American Academy of Pediatrics. Halloween health & safety tips.

  2. American Academy of Pediatrics. How to keep your sleeping baby safe: AAP policy explained.