My baby niece's first Halloween is coming up, so I went looking for baby Halloween costumes that are cute but also easy to deal with. My goal was simple: keep my baby niece warm, cozy, and comfortable, because a costume only works if your baby is happy wearing it.
These are my favorite first Halloween costume ideas, from animal costumes and fruit costumes to ghosts and favorite movie characters. I looked for soft fabrics and comfortable fits that are easy to layer over a long sleeve shirt. A lot of them have snaps or easy closures for quick diaper changes, and there are sizes for newborns and infants. Everything below is available on Prime with quick delivery, so you can get your costume fast.
Whether you want a warm flannel costume for a chilly night or a simple romper for a quick photo, you will find a cute first Halloween outfit below.
Cute Animal Costumes
Animal costumes are the classic first Halloween choice. They are soft, easy to spot in photos, and most have hoods or hats that add to the look. And the flannel and fleece options are warm enough for a chilly October night.
Giraffe Costume
Every baby looks adorable as a little giraffe. This soft flannel costume is perfect for trick-or-treating and photos, and it keeps your baby warm on a chilly night.
Baby Fox Costume
This baby fox costume is as cute as it gets, with a fluffy tail and a sweet embroidered face. The soft romper makes your baby look like a little woodland creature, and it is one of the most affordable picks in the guide.
Baby Bee Costume
Cute wings on the back, little antennae, and black and yellow stripes make this baby bee the most eye catching costume in the guide, so it is a great choice for photos.
Baby Mouse Costume
A plush gray mouse with little ears on the hood and a tail on the back. It is one of those costumes that makes everyone say aww, and it is roomy enough to wear over warm clothes on a chilly night.
Baby Rooster Costume
The hood is the best part of this fluffy white and yellow romper. It has a little chick face, a crown, and a beak, and it looks adorable from every angle. It is warm and cozy too, so your baby stays comfy while everyone takes pictures.
Baby Elephant Costume
A cuddly flannel costume with a hood and sweet little ears that make your baby look like a tiny animal. It is soft, warm, and made for snuggling up on a chilly night, and it looks so cute in photos.
Baby Frog Costume
A fun hood turns your baby into a little frog. This baby frog costume is made from soft flannel, so it is cozy too, and it looks great over a long sleeve shirt on a cold night.
Baby Shark Costume
Nothing says first Halloween like a baby shark. This hooded flannel costume has a tail on the back that makes it extra cute in photos, and the hood makes your baby look like a tiny shark.
Baby Dinosaur Costume
A tiny dinosaur with a hat and a tail is hard to resist. This sleeveless costume is great for photos and works for boys or girls, and you can add a long sleeve shirt underneath if it is chilly.
Fruit and Bug Costumes
Fruit and bug costumes are a fun twist on the classic first Halloween choice. They are soft, colorful, easy to spot in photos, and most have hoods that add to the look. And the fleece and bubble romper options are warm enough for a chilly October night.
Baby Avocado Costume
This green hooded romper has a brown pit, a zip front, and striped leg warmers that turn your baby into a little avocado. Everyone will want a picture, and it is a great idea for a food theme family costume.
Baby Strawberry Costume
Your baby girl will look like the sweetest little strawberry in this bright red bubble romper with a hood. The round, puffy shape is so cute in photos, and it is a favorite for a first Halloween.
Baby Caterpillar Costume
This baby caterpillar costume is so cute. A bright red hood with little antennae and embroidered eyes sits on a soft fleece body with green stripes. It is comfy for crawling around, and it works for boys or girls.
Ghosts and Fun Characters
Ghost and character costumes are a fun way to lean into classic Halloween. They are soft, easy to spot in photos, and a favorite for movie fans. And the footed and long sleeve options are warm enough for a chilly October night.
Ghost Overalls Halloween Outfit
Not into full costumes? These ghost overalls are a subtle way to celebrate, with a little embroidered ghost and buttoned shoulder straps. Wear them over a simple shirt, and they work as a newborn coming home outfit too.
Baby Sully Costume
A fuzzy, soft monster onesie for fans of Monsters, Inc. The 3D details and zipper front make it look just like the movie character, and it keeps your baby warm. Check the size chart before ordering, since sizes start at 9 months.
Baby Jack-Jack Costume
If you are dressing the baby of the family, Jack-Jack from The Incredibles is a fun choice. The cozy red footed outfit with a matching red cap looks just like the character, and the feet keep little toes warm.
First Halloween Tips
A few simple things make the night easier for you and your baby.
- Try the costume on a few days early so your baby gets used to it
- Choose soft fabrics with snaps or zippers for quick diaper changes
- Layer a long sleeve shirt underneath if the night is chilly
- Skip anything with small pieces that could come loose, and check hats and hoods for fit
- Pick a size up if you are between sizes
- Pack a backup outfit and wipes, just in case
- Take photos first, then head out for a short walk
Baby First Halloween FAQ
Can I get a baby Halloween costume delivered quickly?
Yes. Every costume in this guide is available on Prime with quick delivery. Check the delivery date on the listing for your address before you order, especially if Halloween is close.
What should my baby wear for a first Halloween?
Choose something soft, roomy, and easy to change. Cotton rompers, flannel animal costumes, and bubble rompers are comfortable for babies and still look great in photos.
Are baby Halloween costumes safe?
They can be, with a few checks. Look for soft fabrics, skip costumes with small pieces that could come loose, and make sure hats and hoods do not cover your baby's face. Always watch your baby while they are wearing a costume, and take hats and hoods off before naps or sleep.
How do I keep my baby warm in a costume?
Dress your baby in a long sleeve layer underneath, and add socks or leg warmers if the night is cool. Flannel and bubble style costumes are warmer, while sleeveless ones are better for mild weather or layering.
What size costume should I buy?
Check the size chart on the listing and compare it to your baby's current size. If your baby is between sizes, go up, since babies grow fast and a roomy costume is more comfortable.
When is the best time to take first Halloween photos?
Take photos first, while your baby is fed, rested, and happy, and save any outing for after. Babies have short patience in costumes, so a quick photo session before the evening gets the best results.
What should the parents wear for baby's first Halloween?
If you want to dress up too, browse our funny couples Halloween costumes for ideas for you and your partner.
Shop All the Costumes
Every costume from this guide in one place, all available on Prime with quick delivery. Tap any item to see it on Amazon.
