Looking for the perfect Halloween costume for your little guy this spooky season?
Whether you want something adorably spooky or straight-up charming, I’ve got you covered with 25 super cute Halloween costume ideas for baby boys!
And, because we all know the ‘gram is life, I’ve even included some Insta-worthy captions to go along with each one. Let’s get into it!
1. Baby Batman
You don’t have to be a billionaire to suit up your little one as Gotham’s tiniest hero!
Dress him up as Baby Batman, and get ready for some serious cuteness.
- With Rubies baby costumes, even the youngest member of the family can join the fun
- Officially licensed by DC Comics
- Officially licensed DC Comics Justice League newborn and infant cute and stylish short sleeve bodysuit and cute and stylish cape
- Featuring the Dark Knight superhero Batman iconic symbol on the adorable caped bodysuit with utility belt art and piping details
Insta Captions:
“This city needs a hero, and I found one! 🦇 #BabyBatman”
“Na na na na na na na na… BAT-BABY! 🖤”
“The caped crusader in a diaper. 💥”
2. Baby Frankenstein
Spooky season means monsters galore, but your little Frankenstein will be more cute than creepy in this classic costume!
- Hood with plush tuft, graphic scar and attached vinyl bolts, jumpsuit with attached tattered vest and snaps for easy diaper change
- Hood with plush tuft, graphic scar and attached vinyl bolts, jumpsuit with attached tattered vest and snaps for easy diaper change
- Exquisite Workmanship and Soft Fabric, Perfect Combination and Quality Assurance.
- Great Idea to Give As a Gift or Suitable for Halloween Party, Photography Shoots, Outdoor Activities.
Insta Captions:
“He’s got the cutest monster moves! 🧟♂️ #BabyFrankenstein”
“This little monster’s electricity bill is off the charts! ⚡️”
“Tiny, spooky, and oh-so-sweet!”
3. Pumpkin Patch Cutie
If you’re into keeping things simple yet festive, you can’t go wrong with a pumpkin costume.
Plus, is there anything cuter than a baby dressed as a pumpkin?
- Pumpkin Babys Costume Deluxe Costume Set, Material: 100% Polyester
- Super cute halloween pumpkin costume, dress up your little baby like a pumpkin
- 🎃【Package】: 1*Baby pumpkin with clothes.
- 🎃【Hign Quality Materials】: Unisex Orange. The Halloween Costume is made of high quality cotton materials, super light, breathable, comfortable, soft and easy to dry, Super Durable, Superior Quality. well fits for kids.
Insta Captions:
“Picked this little pumpkin straight from the patch! 🎃”
“Ready to light up your Halloween with cuteness! 🌟”
“Officially the cutest pumpkin in the patch. #LittlePumpkin”
4. Mini Mummy
For a fun DIY option, wrap your baby up like the cutest mummy ever! Just don’t forget to leave plenty of space for snacks and giggles.
Insta Captions:
“Wrapped up in love and ready to spook! 👻”
“This little mummy steals hearts, not souls! 💀”
“Who knew mummies could be this cute?!”
5. Tiny T-Rex
Rawr! Unleash your baby’s inner dinosaur with a T-Rex costume. The fiercer the roar, the cuter they look!
- COSTUME INCLUDES: This T-Rex dinosaur costume for toddlers features an amazing corduroy T-Rex bodysuit! The suit features a plush dinosaur tail and fleece spikes on the back and attached dinosaur mitts. The matching T-Rex headpiece has a plush dinosaur snout complete with teeth, eyes, and more spikes. The outfit also includes matching dinosaur booties.
- FROM FUN COSTUMES: Dinosaur costumes are always a popular kids costume choice for Halloween, so we were sure to craft this cozy T-Rex kid’s costume with special care and extra attention to detail. We’re dedicated to the best costume experience, and we’re sure your infant will be the comfiest dinosaur ever to roar with this outfit!
Insta Captions:
“Rawr! 🦖 This T-Rex is ready for his Halloween debut!”
“Don’t let the roar fool you, he’s a sweetheart inside! 🦕”
“Tiny arms, big heart. 💚 #DinoBaby”
6. Little Lion
Turn your baby into the king of the jungle with a lion costume that’s equal parts cozy and adorable.
- COSTUME INCLUDES: This lion costume for infants includes a hooded lion onesie with attached mitts and booties.
- FROM FUN COSTUMES: We’re big into Halloween costumes and we just love crafting cute animal costumes for kids of all ages! If you want to dress your little one up as an adorable little lion for Halloween you will love our lion onesie infant costume.
- SOFT FLEECE: Made from 100% polyester microfiber fleece for a feathery look
- HOODED JUMPSUIT: Features a sculpted bill and embroidered eyes on the hood
Insta Captions:
“Hear me roar! 🦁 King of the playroom.”
“This little lion has my heart. 💛 #BabyLion”
“Paws-itively adorable in his Halloween costume!”
7. Superman
Every baby boy has the superpower of cuteness!
Dress yours as Superman and watch him “fly” into everyone’s hearts.
- With Rubies baby costumes, even the youngest member of the family can join the fun
- Officially licensed by DC Comics
Insta Captions:
“Not all heroes wear capes… but this one does! 🦸♂️”
“Up, up, and away! #SuperBaby 🦸♂️”
“Superpowers: Maximum Cuteness and Drool Control!”
8. Baby Pirate
Ahoy, matey! Your little pirate is ready to sail the high seas in search of Halloween candy and smiles. Arrrgh!
- 100% polyester
- Shirt/vest combo fastens w/ Hook and Loop fastener at back of neck
- Swashbuckling Charm: Your infant will radiate swashbuckling charm in this adorable Pirate Costume, perfect for Halloween adventures and imaginative play. Transform them into the cutest pirate on the high seas with authentic peg-legged detailing and a headscarf fit for a little captain of the neighborhood.
- Cozy Pirate Comfort: Crafted with infant-friendly comfort in mind, this Halloween costume ensures your little buccaneer can conquer the living room seas with unrestricted freedom. Let them explore boundless imagination in soft, breathable materials designed for cozy and seamless playtime adventures.
Insta Captions:
“Aye aye, captain! 🏴☠️ Ready for Halloween adventures!”
“This little pirate’s treasure is endless cuddles. 💰”
“Argghh you ready for some cuteness overload?!”
9. Tiny Dragon
Who says dragons have to be fierce? Your little one will be a fire-breathing ball of love in this adorable dragon costume!
- Lined zippered jumpsuit with snap leg closures for easy diaper change
- Slip-on booties with skid resistant bottoms (booties for indoor use only), character hood with snap/velcro closure.
- Hood with horns and snout; Detachable wings; Detachable tail; Jumpsuit with snaps for easy diaper change; Skid resistant feet
- Small (6-12)
Insta Captions:
“This dragon might breathe fire, but it’s all love in here! 🐉”
“Fierce, but in the most adorable way possible! 🐲”
“Ready to fly into your heart this Halloween! 💚”
10. Baby Shark
You didn’t think we’d forget Baby Shark, did you? Do-do-do your way to Halloween greatness with this fin-tastic costume.
- ⚠ CAUTION: Not to be used as sleepwear. Booties are for indoor use only.
- 【Unique Design】Cartoon shark patterns with pockets,shark printing pattern on hoodies,with big tail on backside,front full zip closure. Super cute and funny cartoon 3D shark design,will make your babies be super adorable
- 【Special Care】Zipper up, elastic cuffs and leg openings,easy for dressing and changing a diaper, small cloths on top of neckline, protect babies’ sensitive skin from hurting by zipper
Insta Captions:
“Do-do-do, Baby Shark coming through! 🦈”
“Fin-tastic costume for a fin-tastic baby! 💙”
“This little shark is swimming in cuteness.”
11. Astronaut
Got a baby who’s destined for the stars? This astronaut costume will send your little one into outer space—well, at least in the imagination!
- Blast off into outer space with this adorable Infant Space Astronaut Costume!
- Explore the galaxy with confidence in this high-quality, officially licensed costume.
Insta Captions:
“Houston, we have a cutie! 👨🚀 #BabyAstronaut”
“Exploring galaxies of giggles this Halloween. 🌌”
“This little space explorer is out of this world! 🌠”
12. Mickey Mouse
Oh boy! It’s time for your baby to dress as everyone’s favorite mouse. Whether your baby loves to crawl or toddle, they’ll look absolutely magical as Mickey!
- SOCKS NOT INCLUDED – Includes onesie and ears only.
- OFFICIALLY LICENSED MICKEY BABY COSTUME – Baby costume outfit so your little one can be the cutest mouse in the house!
Insta Captions:
“Oh boy! It’s Mickey Mouse time! 🐭”
“Ready for some magical moments this Halloween! ✨”
“Ears, smiles, and Halloween vibes! 🎃”
13. Baby Ghost
Simple yet classic, a baby ghost costume is equal parts spooky and sweet.
- Material:High quality cotton blend.baby halloween costumes,baby ghost costumes,baby halloween outfit,soft and breathable,warm,skin-friendly,comfortable to wear,so cute!
- Design:One-piece Halloween romper baby outfits, long sleeve romper fall winter plush jumpsuit, ghost bodysuit hoodie jumpsuit, plush design, ghost romper super perfect for this Halloween.baby girl boy halloween jumpsuit,fall winter outfits,one piece baby halloween bodysuit hoodie,baby will love it.
- Material: Made of high quality 95% Cotton, 5% Elastane. Soft and breathable. comfortable to wear, harmless and tender to babies skin
- Features: Cutest design ” Hey Boo/ Pumpkin ” embroidery long sleeve jumpsuit rompers halloween baby clothes, adorable halloween baby outfit, halloween baby boy girl outfit, newborn boy girl halloween outfit, infant halloween outfit, unisex newborn baby boy girl clothes fall halloween outfit, my first halloween baby boy girl outfit
Insta Captions:
“Boo! 👻 Or should I say boo-tiful?!”
“Casper, but cuter! #LittleGhost”
“The cutest little spook in town! 👻”
14. Baby Bee
Your little one will be buzzing with excitement in this adorable bee costume! It’s a great option for staying cozy and cute while trick-or-treating.
- Buzz, Buzz, Busy Bee – The bee costume set comes with a tunic and hood. The adorable set is perfect for your baby’s dress ups, parties, and Halloween costume. (The tights is not included in the set.)
- Honey Bee – The bee outfit comes with black and yellow stripes and adorable yellow mesh wings are attached to the back of the costume. A hook and loop closure is on the back for easy on and off. The costume features snaps for easy diaper change.
- Super cute honey bee onesie romper costume dress up for newborn or infant baby! An easy one piece bodysuit for all-day cozy and comfy wear!
- Short sleeve cotton bumble bee outfit in contrasting black and yellow color. Featuring an adorable cute wings with velcro tape stick at back. Comes with a pair of socks, and a bonnet hat with lovely bee tentacles for a cute look!
- Material: This baby Halloween bee costume is crafted in soft flannel material,well made great quality and super cute. It would definitely help keep your little one warm on a chilly night.
- Design:Features zipper closure and 3D hood design, double zipper from top and bottom, it goes all the way to the back for easy diaper changing.The hat is not only cute,soft and warm,but also protects the baby’s head.
Insta Captions:
“Buzzing around in my Halloween best! 🐝”
“The sweetest bee in the whole hive. 🍯”
“Bee-lieve it or not, I’m this cute! 💛”
15. Football Star
Got a little sports fan on your hands? A football costume is a touchdown of cuteness, especially for families who love the game.
- Material— Baby football sweatshirt romper made of high-quality cotton fabric, super soft and breathable, friendly to your baby’s skin, cute baby boy football outfit
- Features— Baby girl bubble romper, on sundays we watch football with daddy, sweatshirt romper baby girl, pearl snap onesie, baby girl long sleeve onesie, oversized sweater, baby football clothes
- Material: Cotton Blend, Soft and Comfortable
- Crew Neck, Long Sleeve Football Print Rompers Bodysuits Tops, Elastic Waistband, Brown and White Striped Pants, Infant Newborn Baby Boys Fashion Football Outfits with Hat 3 Piece Fall Winter Clothes
Insta Captions:
“Ready for the touchdown… of cuteness! 🏈”
“Game face on, diapers ready! #BabyFootball”
“Football’s tiniest and most adorable player. 🏈”
16. Baby Skeleton
Perfect for a spooky but fun look, this baby skeleton costume will rattle everyone’s bones with cuteness.
- CUTE AND CREEPY COSTUME. Our Kids Skeleton Sweatsuit includes 3 pieces costume set with a skeleton beanie, a skeleton suit and a pair of booties.
- SUPER REALISTIC AND DETAILED DESIGN. This Skeleton jumpsuit for Kids will give your kids that awesome cute and creepy vibes this Halloween with its extremely detailed design and superb quality that is super easy for diaper change.
- Printed with interesting colorful skull bones, funny and adorable romper for baby boy or girls, It will be the Most special costume in Halloween
- Suitable for halloween costume party, daily life wear and playing outside,perfect for memorable photography shoots
- [Material]: newborn Baby Halloween romper jumpsuit,made of cotton fabric,softy and comfortable,skin-friendly and cozy.Halloween one piece clothes unisex baby.
- [Design]: Cute unisex baby girl boy Halloween jumpsuit. long sleeve one piece pants romper overalls with funny skeleton print. Full of Halloween element!your little one will be more adorable and unique in Halloween day.
Insta Captions:
“Creepin’ it real this Halloween! 💀”
“Just a lil’ bag of bones and cuteness! #BabySkeleton”
“This tiny skeleton is all smiles. 🦴”
17. Buzz Lightyear
“To infinity and beyond!” Your baby can dress up as Buzz Lightyear and become the tiniest space ranger ready to save the galaxy—or at least get a few extra cuddles.
No products found.
- Officially licensed Disney Pixar Toy Story newborn and infant short sleeve bodysuit and cute and stylish cap
- Lap shoulders for easy dressing and quick diaper changes; 3-snap closure for quick and easy diaper changes; Dress-up cosplay design; Awesome screen print design; Bodysuit with rib knit binding
Insta Captions:
“To infinity, and beyond! 🚀 #BuzzBaby”
“This little space ranger is ready for action! 👾”
“Buzzing into your hearts this Halloween!”
18. Cowboy
Saddle up, partner! Whether you’re heading to the wild west or just a Halloween party, a cowboy costume will make your little one the cutest wrangler in town.
- Jumpsuit with snaps for easy diaper change
- Booties with skid resistant feet
- Unique Design: Soft Sole Western Cowboy Bootie Crib Shoes for Newborns and Infants, cute booties with Western pattern, ensuring a touch of western charm for the little ones
- Easy ON & OFF: Lightweight leather keeps baby’s feet breathable and comfortable,Velcro closure makes the boot easy to put on
Insta Captions:
“Yeehaw! This cowboy’s ready for a wild Halloween! 🤠”
“Riding into town on a horse named Cuteness! 🐴”
“This town ain’t big enough for this much adorable!”
19. Baby Olaf
If your baby loves “Frozen,” dressing them up as Olaf the snowman will melt hearts this Halloween. Plus, it’s a cozy costume for chilly weather!
- Size: 12 Months
- 100% polyester, sherpa fleece costume
- ❄High grade velvet fabric, soft and delicate touching, super warm. Keep your little one warm all winter long.
- ❄We hope that your little ones will be happy every day wearing this snowman jumpsuit.This long sleeve christmas romper with snowman face hat is really cute and you can touch the vivid 3D carrot nose on the hat.There are some snaps from the neckline to the crotch, which are convenient for parents to help your little snowman put on and take off.
Insta Captions:
“Do you wanna build a snowman? ☃️”
“Chillin’ with Olaf this Halloween! ❄️”
“Cool as ice, sweet as sugar! #BabyOlaf”
20. Baby Dinosaur
Who doesn’t love a little roar in their life? Your baby can become a mini dinosaur this Halloween, stomping around in prehistoric levels of cuteness.
- Dinosaur Onesie Baby Design:Cute Cartoon Dinosaur Design,Hoodie,Long Sleeve,One-piece. Make Your Little Baby So Adorable Newborn baby boy girl dinosaur hoodie romper outfit,Our infant halloween costume protective zipper panel and this dino onesie pocket keeps zipper away from baby’s skin, This dinosaur costume infant zipper was extended to the leg opening for easier diapering and wearing. Newborn baby dinosaur outfit, Infant baby dinosaur outfit baby boy girl dinosaur jumpsuit outfits
- Material: Dinosaur baby girl boy clothes made of Cotton Blend, soft and skin-friendly, warm and cute baby sweatshirt halloween onesie make your little one have a fun Halloween Day!
- 100% polyester velour fabric
- Jumpsuit has back zipper
Insta Captions:
“Dino-mite and ready for Halloween fun! 🦕”
“Rawring into your hearts with cuteness! 🦖”
“Prehistoric levels of adorable! #LittleDino”
21. Harry Potter
Wingardium Leviosa! For all the Harry Potter fans out there, this baby Harry Potter costume is pure magic. Don’t forget the tiny glasses and lightning bolt scar!
- ADORABLE BABY HARRY POTTER COSTUME – Dress your little one as the boy who lived with this charming Harry Potter infant costume, perfect for Halloween or playtime
- INFANT HARRY POTTER COSTUME FOR YOUR TINY WIZARD – Give your baby the gift of magic with this officially licensed Harry Potter outfit, featuring a soft robe and Gryffindor tie
- Officially licensed Harry Potter Warner Bros. newborn and infant cute and stylish long sleeve one-piece coverall
- Dress-up costume design; Sleeve cuffs for a better fit; Zip up front for easy dressing; Ankle cuffs for a better fit
Insta Captions:
“Accio cuteness! 🧙♂️ #BabyHarryPotter”
“Wingardium Leviosa-ing my heart! ❤️”
“A little magic goes a long way this Halloween!”
22. Baby Spiderman
Your baby will be the cutest web-slinger on the block in a mini Spiderman costume. Bonus points if they love crawling—just like Spidey!
- 100% Cotton
- Officially licensed Marvel Comics infant boys 3 piece mix n’ match clothing set: cute and stylish short sleeve bodysuit, pants, and cap
Insta Captions:
“Just your friendly neighborhood Spidey baby! 🕷”
“Crawling into your heart, one web at a time! 🕸️”
“Spider-baby, spider-baby, does whatever a spider can!”
23. Firefighter
Put out the cuteness alarm! Your little one will be ready to save the day in a firefighter costume, complete with a tiny helmet and jacket.
- SUPER VALUE PACK. Our firemen costume for kids is suitable for children to make fun, crazy, and unique Halloween role-playing games. Presenting the Spooktacular Mini Firefighter Costume Deluxe Set for Infant. Includes a Red Fire Hat and a Blue and Khaki Firefighter Jumpsuit.
- PREMIUM QUALITY. Our baby fireman costume is Super Durable and made with Higher Quality. The material is made out of 100% Polyester. This is very comfortable to wear and very easy for a diaper change. Your baby will surely love wearing this Colorful set. Let your baby wear this Mini Firefighter costume set and have a party with cuteness overload!
- Baby firefighter outfit is made of cotton, soft and comfortable
- Cute pattern of fireman elements adds charm to the baby. It comes with a matching hat to complete the look that can be a firefighter baby
Insta Captions:
“Sound the alarm! This baby’s too cute to handle! 🚒”
“Rescuing Halloween one cuddle at a time! 🔥”
“This tiny firefighter’s here to save the day! 🚨”
24. Baby Chef
This little chef is cooking up something adorable this Halloween. With a chef hat and apron, your baby will be ready to whip up some smiles.
- Shirt: 99% polyester, 1% cotton, pants: 100% polyester
- White poplin shirt has gingham cuffs, black piping on front edge
- A perfect birthday gift for your baby ever
- Includes a funny bodysuit and a cute hat
Insta Captions:
“Whipping up some cuteness in the kitchen this Halloween! 🍳”
“This little chef’s recipe is 100% adorable! 👨🍳”
“Serving up sweet looks and baby giggles! 👩🍳”
25. Baby Monster
He may be dressed like a monster, but your baby will still be the sweetest creature at the party! Fangs, fur, and all the feels.
- This silly plush Infant Blue Monster Halloween Costume jumpsuit and headpiece is loaded with details that will make your little one stand out from the crowd. Rich vibrant colors, 3 dimensional eyes and horns as well as felt fangs and toenails, no detail is spared.
- Great for Halloween, parties, dressing up, or a very adorable baby photoshoot!
- 100% same as image.
- Halloween & Party gift
Insta Captions:
“Our little monster is cuter than spooky! 👻💚“
“Warning: Cuteness overload! This monster is here to steal hearts, not screams! 🐾“
“Rawr means ‘I love you’ in monster! 🧡💚 #LittleMonster”
Have Fun Choosing Your Baby Boy Halloween Costume!
These baby boy Halloween costume ideas are all about turning your little man into the star of Halloween.
Whether he’s saving the day as Batman, stealing hearts as a pirate, or giving you dino-mite smiles as a T-Rex, the most important thing is he’ll be having the time of his life in his adorable little outfit.
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