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Baby Halloween Costumes

These costumes aren’t just for one night. They’re perfect for milestone photo shoots, themed birthday parties, preschool parades, and everyday imaginative play. Accessories like capes, hats, or wings add the finishing touch, making it simple to create an unforgettable look. Pair with sibling styles from our Toddler Girl Halloween Costumes or Toddler Boy Halloween Costumes collections, or go big with coordinated Family Halloween Costumes.

With sizes designed for newborns through toddlers, these costumes grow with your little pumpkin patch. Expect soft linings, breathable layers, and secure closures for stress-free wear. Easy-care fabrics make cleanup simple, so every piece is ready for more dress-up adventures.

At Chasing Fireflies, we believe even the tiniest costumes should create the biggest memories. Our Baby & Toddler Halloween Costumes capture the joy of the season with heirloom-quality designs meant to be cherished.

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65 products

Greek Goddess Costume For Girls-Chasing Fireflies
Greek Goddess Costume For Girls Sale price$79.00
Silver Ninja Costume For Boys-Chasing Fireflies
Silver Ninja Costume For Boys Sale price$79.99
Golden Angel Costume for Girls-Chasing Fireflies
Golden Angel Costume for Girls Sale price$69.99
Punk Devil Costume For Girls-Chasing Fireflies
Punk Devil Costume For Girls Sale price$89.00
Archer Costume For Girls-Chasing Fireflies
Archer Costume For Girls Sale price$82.99
Sold outRetro Baseball Player Costume For Girls-Chasing Fireflies
Retro Baseball Player Costume For Girls Sale price$56.00
Zombie Bride Costume For Girls-Chasing Fireflies
Zombie Bride Costume For Girls Sale price$79.99
Pretty Bluebird Costume For Girls-Chasing Fireflies
Pretty Bluebird Costume For Girls Sale price$98.00
Pirate Blue Brocade Costume for Girls-Chasing Fireflies
Pirate Blue Brocade Costume for Girls Sale price$99.00
Pirate Blue Brocade Costume for Boys-Chasing Fireflies
Pirate Blue Brocade Costume for Boys Sale price$89.00
Red Ninja Costume For Girls-Chasing Fireflies
Red Ninja Costume For Girls Sale price$59.00
Great White Shark Costume for Kids-Chasing Fireflies
Great White Shark Costume for Kids Sale price$69.99
Skeleton Knight Costume For Boys - Chasing Fireflies
Skeleton Knight Costume For Boys Sale price$89.00
Fab '50s Costume For Girls-Chasing Fireflies
Fab '50s Costume For Girls Sale price$54.99
Candy Fairy Costume for Girls-Chasing Fireflies
Candy Fairy Costume for Girls Sale price$92.00
Snow Warrior Costume for Girls-Chasing Fireflies
Snow Warrior Costume for Girls Sale price$89.00
Ballroom Dancer Costume For Girls-Chasing Fireflies
Ballroom Dancer Costume For Girls Sale price$79.00

Start Halloween magic early with our Baby & Toddler Halloween Costumes - adorable, comfy designs that are made to delight little ones (and their parents!). Whether it’s baby’s very first Halloween or a toddler’s trick-or-treat debut, these costumes combine softness, play-ready comfort, and Chasing Fireflies’ signature storybook detail.

Crafted with premium fabrics and thoughtful design, each costume is gentle on sensitive skin and easy to slip on and off because dressing up should be fun, not fussy. Look for cozy bodysuits, plush capes, and twirl-worthy dresses sized perfectly for infants and growing toddlers.

What could be better than perfectly coordinated family costumes for Halloween? If your family dresses in themed costumes, you can easily coordinate your baby’s costume right into it! We offer lots of Halloween costumes for babies that match ones worn by big brother or big sister, or your entire family. Our baby pirate would be perfect addition to your family’s pirate-themed costumes. Or maybe big sisters dress as Anna and Elsa from Disney’s Frozen, and your littlest one becomes the most adorable Olaf ever. Outer space theme? Check out our alien baby costume. If your family prefers spooky costumes, why not dress your baby as the cutest ghost this side of the grave?

Of course, baby costumes should feel as cuddly as they look, and we strive to offer pieces that will keep little ones smiling. Soft fabrics, full-length zippers and leg snaps are details you’ll appreciate, too.

At Chasing Fireflies, we believe you’re never too young to have fun with dress-up. That’s why we offer a selection of adorable baby Halloween costumes—so you can start making memories from your little one’s earliest days.