Halloween is always an exciting time, especially when it comes to dressing up little girls for their very first costume experience. Parents often want something that feels cute, fun, and memorable while also being comfortable for their child to wear.
From adorable princess outfits to charming animal costumes, there are so many options that bring joy to both kids and parents.
A first Halloween costume is more than just an outfit, it is a keepsake moment that often ends up in family photos and cherished memories.
In this article, we will explore the most popular ideas for little girls.
1. Pumpkin Baby Costume

The pumpkin baby costume is one of the most timeless first Halloween looks for little girls. Its bright orange color and round, cheerful design capture the spirit of fall perfectly.
These costumes are often made from soft, plush material, making them both comfortable and cozy for babies.
The smiling pumpkin face adds extra cuteness, making it an unforgettable first Halloween outfit that also looks amazing in family photos.
2. Little Witch Costume

A little witch costume is a fun and playful choice that brings out the magical side of Halloween. Instead of looking spooky, these baby versions are often made in vibrant shades of purple, green, or pink with glittery details.
The tiny pointy hat completes the look and adds an extra layer of charm. With or without a small broom accessory, this costume makes your baby girl look absolutely enchanting.
3. Baby Princess Costume

Every parent loves the idea of dressing their baby girl like royalty for her first Halloween, and a princess costume makes that dream come true.
These costumes usually come with a flowing gown, a sparkling tiara, and sometimes even a wand. The soft fabrics ensure comfort while the glamorous style makes her shine.
Whether inspired by classic fairy tales or Disney princesses, this outfit is a magical favorite.
4. Cute Cat Costume

A cute cat costume is both simple and adorable, making it a very popular first Halloween choice.
These outfits usually include a black or pink jumpsuit, cat ears on a headband, and a soft little tail. Add a touch of whiskers with safe face paint, and the look is complete.
It is easy to wear, comfortable for your baby girl, and always a hit with family and friends.
5. Ladybug Costume

A ladybug costume is a sweet and colorful idea that instantly makes your baby girl stand out. With its bright red outfit decorated with black spots and little wings, it is cheerful and eye-catching.
Many versions also come with a hood that has antennae, adding to the charm. This costume is lightweight, soft, and perfect for keeping your baby comfortable while looking picture-perfect.
6. Fairy Costume

A fairy costume adds a touch of magic and sparkle to your baby girl’s first Halloween. These outfits usually come with a pastel-colored dress, glittery wings, and sometimes even a tiny wand.
The soft fabrics make it comfortable, while the sparkly details give it a dreamy, whimsical look. Your little one will look like she just fluttered out of a storybook.
7. Unicorn Costume

Unicorn costumes are incredibly popular because they bring fantasy and cuteness together. Usually featuring a pastel-colored bodysuit with a rainbow mane and a shiny horn on the hood, this look is pure magic.
The playful design makes it both cozy and adorable, ensuring your baby girl steals the show wherever she goes.
8. Minnie Mouse Costume

A Minnie Mouse costume is a classic and loved choice for baby girls. With its red and white polka-dotted dress, matching bow, and mouse ears headband, it is instantly recognizable.
This Disney-inspired outfit is sweet, cheerful, and perfect for both Halloween parties and photo sessions. It is a timeless pick that never goes out of style.
9. Butterfly Costume

A butterfly costume adds a colorful and graceful touch to your baby’s first Halloween. The costumes usually come with a soft jumpsuit or dress paired with lightweight wings in bright shades.
The delicate and pretty look makes your baby girl appear like a little fluttering angel, creating a beautiful memory for her first spooky season.
10. Bumblebee Costume

A bumblebee costume is another cheerful and crowd-pleasing choice. With its black-and-yellow stripes, tiny wings, and antennae headband, it creates an irresistibly cute appearance.
These costumes are often designed to be soft and comfortable, making it easy for babies to wear. It is playful, bright, and perfect for a fun first Halloween look.
11. Angel Costume

An angel costume is a beautiful and elegant choice for your baby girl’s first Halloween. It often includes a white dress, fluffy wings, and a soft halo headband.
The look is gentle and pure, making your little one shine with innocence. It is also a great pick for holiday photos, not just Halloween.
12. Mermaid Costume

Mermaid costumes are very popular because they combine fantasy and charm. Typically featuring a sparkly tail design, a pastel top, and sometimes seashell details, this outfit is enchanting.
Your baby girl will look like a tiny princess from under the sea, making it a standout choice for her first Halloween.
13. Bat Costume

A bat costume adds a playful yet slightly spooky vibe that is perfect for Halloween. These outfits usually come in soft black or purple fabric with little wings attached to the arms or back.
The design is cozy and fun, making your baby girl look like the cutest little night flier around.
14. Bunny Costume

A bunny costume is an all-time favorite for its sweet and cuddly look. With floppy ears, a soft jumpsuit, and sometimes a fluffy tail, it makes your little one look extra adorable.
This costume brings a cozy and cheerful vibe, making it perfect for Halloween or even Easter celebrations later.
15. Superhero Baby Girl Costume

Superhero costumes for baby girls are becoming more popular every year. From Wonder Woman to Supergirl, these outfits often include a bright dress or romper with a cape and bold emblems.
They bring both fun and empowerment to your baby’s look, turning her into the star hero of Halloween night.
How to Choose the Perfect First Halloween Costume for Your Baby Girl
When picking the right costume, comfort should always come first. Babies have delicate skin, so choose soft, breathable fabrics that won’t cause irritation. Make sure the costume is easy to put on and take off, especially for quick diaper changes.
Safety is also important, so avoid outfits with small detachable parts that could be a choking hazard.
Lastly, think about the weather if it’s chilly, go for a cozy jumpsuit, and if it’s warm, a lighter outfit will keep your baby happy. The best costume is one that combines cuteness with practicality.
FAQs
Most parents dress their little ones as early as a few months old, but it’s totally fine to wait until your baby can sit comfortably in a costume. The key is choosing an outfit that feels soft, safe, and non-restrictive.
Yes, most costumes are available in multiple infant sizes, usually ranging from newborn to 24 months. Always check the size chart and reviews before buying, as baby clothing can run smaller or larger depending on the brand.
Both can be great choices. Handmade costumes are often more unique and customizable, while store-bought ones are convenient and usually designed with safety in mind. It really depends on your preference and time.
If you live in a cooler area, layering is a great option. You can dress your baby in a thin onesie or leggings underneath the costume. Some parents also add a cozy blanket or stroller cover during trick-or-treating.
Conclusion
Choosing the perfect first Halloween costume for your little girl is all about finding a balance between cuteness, comfort, and safety.
Whether you go for a classic pumpkin look, a magical fairy, or a sparkling princess, the most important part is creating memories that you will cherish forever.
Babies grow so quickly, and celebrating their first Halloween is a milestone worth capturing in photos and videos. No matter which costume you choose, your baby girl is sure to be the star of the night and bring smiles to everyone around.