If you’re searching for baby girl Halloween costume ideas while feeding your child with one hand and scrolling with the other, welcome, you’re in the right place.
The truth is most “cute baby halloween costume” ideas you’ll find online were clearly written by people who either 1) don’t have kids or 2) have never tried to dress a baby in a costume that doesn’t cause a meltdown within six minutes. The real goal? Something adorable, yes but also soft, breathable, baby-proof and ideally washable.
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This list? It’s parent-tested, baby-approved and broken down by effort level. From Amazon and Etsy costumes you can order today, to last-minute DIY baby costume ideas you can pull together with stuff you already own, it’s all here.
Most of these are infant costume ideas that work from newborn stage to 18 months. A few are best for babies who can sit or stand.
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The Best Baby girl Halloween costume ideas
Quick picks: Best Baby Halloween costume buys you can order today
For when you need it shipped, not sewn.
1. Soft Pumpkin romper
Pumpkins are a classic for a reason. Gender-neutral, instantly recognizable and impossible to mess up. Go for a romper-style one with soft fleece and no weird stiff neck ruffles.
2. Custom Strawberry baby costume
This is handmade, ships fast and includes a bonnet with little green leaves. Simple but very photographable.
3. Baby ghost PJs
A soft footie sleeper with ghost eyes on the chest. Add a white beanie and call it done.
4. Bunny bonnet and tail set
You can pair this with a white onesie and leggings for a quick bunny look. Includes soft crochet ears and a little puff tail.
5. Baby bat wings with hood
Velcro wings and soft hoodie = zero struggle and a very cute social media moment.
Clever, easy DIY Baby girl Halloween costume ideas (with things you already own)
No glue gun needed. Just a little creativity, a onesie and maybe some felt.
6. Bubble tea baby
Light tan onesie and black felt “boba” circles and headband with a straw-shaped pipe cleaner.
Perfect if you’re slightly overcaffeinated and proud of it.
7. Laundry basket baby
Place baby in a soft, shallow laundry basket with dryer sheets and baby socks clipped to the edges.
Important: Photo op only. Don’t transport your baby this way.
8. “Baby on board” sign
Yellow onesie and black cardboard sign (worn like a sandwich board). That’s it. 3-minute DIY.
People will laugh. You’ll sleep better knowing it took no effort.
9. Weather forecast
Blue onesie with raincloud felt patches. Use ribbon or thread to dangle mini raindrops.
Optional: parent dresses as a thunderstorm.
10. Garden gnome
Pointy red felt hat, blue baby sweater, grey tights. Add a little white beard if your baby will tolerate it for two seconds.
Unexpected and hilarious Baby Halloween costumes
Not “just cute”. These are original enough to stand out at the pumpkin patch.
11. Business baby
Tiny clip-on tie, white onesie and some sort of pretend ID badge (“CEO of Drool Operations”).
Put them in your arms like they’re in a Zoom meeting. Add coffee cup prop for full effect.
12. Grandma on her walk
Cardigan, faux glasses (soft plastic only), pearls and if you’re feeling committed, make a baby walker from pool noodles and a box.
Will go viral in your neighborhood.
13. Baby plant lady
Onesie with leafy decals, a little watering can prop and a wide-brimmed hat.
Great for babies who love being outside and getting dirty anyway.
14. Pasta baby
White or tan onesie with glued-on yarn “spaghetti,” red felt sauce splashes and a giant felt meatball on a headband.
Only do this if you’re okay with strangers saying “Mangia!” at you repeatedly.
15. Retro diner waitress
Little apron, pastel dress or onesie, fake order pad.
Add a tiny tray if they’re sitting up in a high chair or stroller.
Halloween costume ideas for the truly last-minute parent
You’ve got 12 hours and zero desire to make a thing. These are your go-to last-minute diy baby costume options.
16. “This is my costume” baby
White onesie and permanent marker. Done.
Optional: add fake name tag like “Hi, I’m Over It.”
17. Bag of popcorn
White onesie and tape on red vertical stripes and yellow pom-poms as “butter.”
Put them in a big popcorn bowl for photos.
18. Cloudy with a chance of baby
Cloud tulle draped around shoulders and small fabric “raindrops” on strings.
Stroller can be the “sky.”
19. Cactus baby
Green outfit with white felt “spines,” flower headband on top.
Good if your baby is naturally prickly when tired.
20. Baby burrito
Swaddle blanket, foil around the bottom like Chipotle wrapper.
Bonus if you add felt lettuce or tomato.
Seasonal or pop culture baby costume ideas
These are a little more involved but worth it for the photos (and future blackmail).
21. Baby Taylor Swift “Era” Look
Pick any era (Lover = pastels, Reputation = black hoodie, Folklore = boho dress). Add small prop like a microphone or friendship bracelet.
Works best if the parents match.
22. Baby Harry Potter
Gryffindor onesie, soft round glasses, lightning bolt drawn with baby-safe makeup.
Bonus: Use a scarf as stroller wrap.
23. Paddington baby
Blue coat (or hoodie), red hat and a plush marmalade sandwich.
Also: you’ll want this photo framed forever.
24. Baby Yoda
There are loads of pre-made Etsy sets for this. Look for robe-style swaddles and ear hats.
Also on Amazon.
25. Baby Barbie
Pink outfit, oversized sunglasses and a stroller sign that says “Dream Car.”
Works for babies who already give diva energy.
Animal-themed infant costume ideas
Let’s go beyond ladybug and duck.
26. Sloth baby
Soft grey or brown outfit, add felt claws (rounded for safety) and a sleepy expression.
Parents can wear leaves to complete the look.
27. Baby Fox in a box
Orange onesie and pointy ear hat and tail. Add cardboard box with “forest delivery” printed on the side.
28. Koala on a tree
Grey onesie, ears and a baby carrier wrap. You dress in brown to be the tree.
Hands-free trick-or-treating. You’re welcome.
29. Hedgehog
Brown onesie with felt triangles down the back.
If your baby is currently in “rolling and squeaking” phase, this one’s especially on brand.
30. Baby snail
Brown or beige base and soft spiral shell backpack (there are some adorable ones on Etsy).
Silly, sweet and surprisingly original.
Even more original infant costume ideas
31. Baby jellyfish
Light blue onesie and an umbrella (held by the parent) with ribbons or streamers hanging down like tentacles.
Bonus: looks amazing in motion and very few babies fight this one.
32. Baby crayon
Solid-colored sleeper or onesie (blue, red, green). Add a paper cone “hat” for the crayon tip and draw the word “CRAYON” down the side with fabric marker.
Fast, clean and striking in photos.
33. Baby artist
Mini beret (search Etsy for “baby artist hat”), paint palette felt cutouts on the front of their shirt.
Give them a paintbrush as a teether. Done.
34. Baby avocado
Green onesie and large oval brown felt “pit” on the front.
There are premade Amazon versions or you can DIY the pit in 10
35. Baby ice cream cone
White onesie (scoop), tan leggings with diamond pattern drawn on (cone) and felt cherries on a headband.
Use pastel colors for a strawberry or mint chip vibe.
Costume ideas that work with the baby carrier or stroller
Because sometimes… the baby just wants to be held and you’re not fighting that today.
36. Popcorn vendor and bag of popcorn
You wear the “vendor” getup (red/white stripes, paper hat) and the baby carrier is decorated like a popcorn bag. Baby wears a white hat with yellow pom-poms.
37. Spider baby
Attach four black felt “legs” to each side of the baby carrier. Dress baby in black and boom. Eight-legged cuteness.
38. Mail carrier and envelope baby
You wear a blue USPS-style outfit. Baby is dressed in a onesie with postage stamps drawn or glued on.
Bonus points if your baby’s name is something like Piper or Miles. Just for the pun.
39. Sushi roll (parent = chopsticks)
Baby in white with orange or green felt, as described earlier. Carrier gets a black wrap to mimic nori. You wear brown gloves and call yourself chopsticks. Done.
40. Baby kangaroo in pouch
Gray wrap carrier or hoodie pouch and baby with ears and tail. Add a sign: “First Halloween, Hop to It.”
Simple and cute especially good for newborns.
Etsy and Amazon favorites worth the click
41. Handmade baby lamb costume
Includes soft bonnet with ears, body suit and tail. Made from organic cotton.
42. Baby lion bodysuit
Zipper front, fleece interior and a hood with a soft mane. Easy to wear and adorable even when they’re crawling.
43. Personalized name skeleton onesie
Your baby’s name is printed in the ribcage. Great for simple costumes that still feel festive.
44. Prehistoric baby dino costume
Green or purple one-piece with tail and hood. Velcro fastening for easy changes.
45. Baby witch
Velvet-style headband/soft pointed hat. Dress it up or down.
FAQs about baby girl Halloween costume ideas
What are the best baby halloween costumes for 6–12 months?
Look for costumes with soft materials, no tags or stiff seams and easy diaper access. Romper-style costumes and footie pajamas with themed prints are ideal for this age group.
How can I make a baby costume at the last minute?
Start with a solid-color onesie and add quick details using felt, ribbon or printed signs. Bunny ears, superhero capes or fake glasses can be added in seconds and make a big visual impact.
Should babies wear a full costume for Halloween?
Not necessarily. Many parents opt for themed onesies, soft hats or costume-style pajamas to keep babies comfortable and avoid meltdowns. It’s more about capturing the moment than going all out.
How do I make sure the costume is safe?
Avoid small detachable parts (choking hazards), loose threads and synthetic materials that don’t breathe. Always test the costume for fit and comfort before Halloween day. Choose outfits you can easily remove in case of spills, blowouts or overheating.
Can a newborn dress up for Halloween?
Absolutely, as long as the costume is soft, breathable and doesn’t interfere with feeding, swaddling or sleep. Many parents dress newborns in simple printed onesies with hats or accessories.
What makes a great baby girl Halloween costume?
It’s not about complexity. It’s about comfort, a little creativity and not crying by 5pm. A great baby halloween costume doesn’t require sewing skills or a $90 Etsy order. It just needs to be something that your baby can exist in for more than 15 minutes while you snap a photo and maybe answer the door once.
Choose one from this list, make it yours and move on with your life because honestly, the best part of the costume will be the baby inside it.
Loved this list? Pick your favorite, grab the link and save yourself from Halloween regret.
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