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40+ Cute Halloween Costume Ideas for a Newborn Baby

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Just because your newborn won’t be walking around and chewing on sugary treats doesn’t mean they’re too young to dress up for Halloween!



Dressing up is a treat for the parents, especially. There’s nothing cuter than a Halloween photo shoot to send out to your family and friends. Well, we’re here to help! Here’s a list of Halloween costume ideas for a newborn baby.

We’re sure you’ll find at least one that is just irresistible!

HALLOWEEN ONESIES AND SLEEPERS

Boy or a girl, nothing will make your baby’s first Halloween more comfortable than these super-comfortable and uber-cute onesies.

#1 – Pumpkin

GET THE BABY PUMPKIN COSTUME HERE

All time favourite Halloween costume idea for a newborn babyThis little nerdy pumpkin is ready to rock her first Halloween!

#2 – Candy corn

GET THE BABY CANDY CORN COSTUME HERE

Another pumpkin-coloured outfit that just never gets old. Cute candy corn ready to be eaten away!

#3 – Baby Unicorn costume

GET THE BABY UNICORN COSTUME HERE

Loads of cuteness and rainbow magic in this Unicorn onesie!

#4 – Magic onesie

GET THE SPELL ON YOU ONESIE HERE

This simply sweet bodysuit will cast a tiny bit of magic on everybody.

#5 – Peas bunting costume

GET THE BABY PEA COSTUME HERE

Now here’s an easy answer for “Who’s the cutest pea in the pod?” This fuzzy costume will keep baby nice and cozy into the cool Halloween night.

#6 – Little fox newborn costume

GET THE BABY FOX COSTUME HERE

This fox onesie is not only an extremely cute Halloween costume, it can be used as a year-round warmer.

ADORABLE HALLOWEEN COSTUMES

Take a look at these adorable costumes available online. Some of them are hand-made and customised for your baby to make this Haloween a great one.

#7 – Halloween witch costume idea for a newborn

GET THE BABY WITCH COSTUME HERE

This dress up so darling it is hard to call her a witch!

#8 – Star Wars costume – Princess Leia

GET THE PRINCESS LEIA COSTUME HERE

Here’s a treat for Star Wars fans of any age. This Princess Leia costume is a good reason for intergalactic celebration.

#9 – Pink Flamingo Halloween costume

GET THE BABY FLAMINGO COSTUME HERE

This pretty flamingo sure isn’t a regular animal costume! It’s perfect for your girl and cozy enough for her to relax (and sleep!) in.

#10 – Sweet Corn infant costume

GET THE BABY CORN COSTUME HERE

Sweet corn in this adorable costume? Pop right up!

#11 – Shark knitted newborn costume

GET THE BABY SHARK COSTUME HERE

There is nothing to fear when this shark is around.

#12 – Lion King costume

GET THE BABY LION COSTUME HERE

This hat makes a great option for kids who are not too excited to wear a costume. Pair with some basic pants and he is good to go!

#13 – Pumpkin Lady Halloween costume

GET THE BABY PUMPKIN COSTUME HERE

This baby pumpkin takes this Halloween classic to a whole new level!

#14 – Lobster costume

GET THE LOBSTER COSTUME HERE

Nothing can go wrong with this little lobster. You just want to eat it all up.

#15 – Witch-inspired costume

GET THE BABY WITCH HAT HERE

This load of sweetness comes with matching leg warmers and a diaper cover.

#16 – Baby golfer costume

GET THE BABY GOLFER COSTUME HERE

Gettin’ all preppy like this little golfer right here.

#17 – Gnome bunting costume

GET THE NEWBORN GNOME COSTUME HERE

Wrapped up in this gnome costume is a perfect outfit for 0-3 months old.

#18 – Pokemon costume – Pikachu

GET THE NEWBORN POKEMON COSTUME HERE

You got one, too! Now you will not want to let it go. We are counting on this one to be the next big hit as a Halloween costume idea for a newborn.

#19 – Werewolf costume

GET THE BABY WEREWOLF COSTUME HERE

This baby Wolfman looks seriously cute in this “scary” costume. He is about to howl!

#20 – Strawberry girl

GET THE STRAWBERRY GIRL COSTUME HERE

Another food-inspired Halloween costume – a delicious strawberry.

COSTUMES FOR TWINS 

Check out this variety of matching twin costumes for your babies’ first Halloween!

#21 – Sushi twin set

GET THE SUSHI ONESIES HERE

These two are an absolute hit! You cannot have sushi without this adorable sauce, right?

#22 – Salt and pepper

GET THE SALT AND PEPPER BABY COSTUMES HERE

Another twin’s classic. Simple yet adorable.

#23 – Dr. Seuss costumes – Thing #1 and Thing #2

GET THE THING 1 AND 2 BABY COSTUMES HERE

This is a bingo for a choice of Halloween costume for best buddies or twins. Any doctor would be proud.

#24 – Cookie and milk twin costume

GET THE COOKIE AND MILK COSTUME HERE

Milk goes well with lots of things. It apparently cannot resist being matched with this delicious cookie.

#25 – Top Gun costumes

GET THE TOP GUN PILOTS COSTUME HERE

Twin Top Gun pilots. This might be the best twin costume on the Internet. Get ready to score prizes for this one in a Halloween best costume competition. Via Jessyo77.

#26 – Grandmas costume idea

Dressing up your little girls like two lil ol’ ladies? Why not! Find more here.

#27 – Game of Thrones costumes

Mother of all dragons! This Halloween costume idea works for a newborn, their siblings, and the parent!

DIY COSTUMES

There are tonnes of DIY ideas out there. We have chosen the cutest DIY Halloween costume ideas for a newborn baby. Some of them are really easy. Other require more effort but it sure is worth the trouble!

#28 – Star Wars – Yoda

YOU CAN GET THE STAR WARS YODA COSTUME HERE

Let’s hope you know how to knit. This newborn Yoda is waiting for his next revelation.

#29 – Bjork swan costume

Who doesn’t want to dress up as a stylish lady like Icelandic singer Bjork? Or an adorable swan if you don’t know who she is. Via Etsy.

#30 – Penguin

YOU CAN GET THE PENGUIN COSTUME ON HERE

This extremely soft penguin costume will make every cosplay/ photoshoot exciting both for parents and their kids.

#31 – Little Lamb

OR GET THE LAMB COSTUME ON HERE

This little lamb just screams both innocence and huge doses of cuteness.

#32 – An Owl

OR YOU CAN GET THE OWL COSTUME ON HERE

This minimalist owl astonishes with its simplicity and finesse.

#33 – A Cow

OR YOU CAN GET THE COW COSTUME HERE

Cow costume with an udder? It is easier to make than you think.

#34 – Spaghetti and meatballs

Apparently, it is also cool to dress up your tiny baby as a bowl of spaghetti and meatballs.

#35 – Cookie monster

OR YOU CAN GET THE COOKIE MONSTER COSTUME ON HERE

Every Milk Mum’s dream is to have a cookie monster attached to her? You tell me.

#36 – Harry Potter

OR YOU CAN GET THE HARRY POTTER COSTUME HERE

Harry Potter. This one has it all figured out. Straight to Hogwarts, of course! This Halloween costume does not miss a thing. Works for every age.

#37 – Flower

Little Flower Blooming. For this DIY, all you need is some felt, a headband, some faux flower, and a white onesie.

PHOTO SESSION IDEAS

Make every moment count. Snap some gorgeous pictures with these props and make your baby’s first Halloween pure magic.

#38 – Very hungry caterpillar

GET THE CATERPILLAR COSTUME HERE

Your caterpillar is not only going to look lovely. He or she will also feel comfortable in this soft crochet costume.

#39 – Honeybee

GET THE HONEYBEE COSTUME HERE

This must be the world’s most comfortable bee costume. Make your baby’s first Halloween special with this amazing photoshoot.

#40 – Halloween Kitten

GET THE KITTEN COSTUME HERE

This simple pattern can turn your little kitten into a star. This hat is just a perfection.

#41 – Candy corn bunting

GET THE CANDY CORN COSTUME HERE

Candy corn baby. This soft hat can be used in the wintertime.

#42 – Simple Caterpillar

Baby Halloween Costumes, Costumes, Holidays, Trick or Treat

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Another caterpillar infant bunting idea for a memorable photo shoot.

#43 – Football bunting

GET THE FOOTBALL BUNTING HERE

Football bunting. Make dads proud with this one.

#44 – Ice cream

Ice cream cone in a beanie. Behold, the sweetest Halloween costume idea for a newborn baby of them all.

#45 – Little Mermaid

GET THE LITTLE MERMAID COSTUME HERE

Little Mermaid. Tail and tiara included in the set.

#46 – Bookworm

This sleeping baby transforming into a bookworm. So simple and yet brilliant.

Regardless of the costume you choose, make this Halloween a memorable one! Enjoy the memories you’re making with your family. These baby years don’t last long.

If you have any other cute Halloween costume ideas for a newborn baby make sure to leave us a comment in the section below!

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