"Some of my fondest childhood memories stem from my sibling costumes on Halloween. Sure, the mountains of candy were pretty special, but what really filled me with delight was the chance to partner on a Halloween costume with my siblings.
If you have a couple of siblings to outfit this Halloween, keep scrolling for dozens of coordinating costumes to help take the guesswork out of the upcoming holiday. This list of Halloween costumes for sibling costumes includes options from pop culture, nostalgic movies, kid-favorite shows, storybooks, nursery rhymes, nature, and more!
We’ve broken some of the list down to sibling costumes for boys and girls, but, of course, any child can dress in their favorite costume on Halloween, no matter their gender. Read on for over 50 of our favorite Halloween costume ideas for siblings—plus some of the cutest inspiration photos and where to shop to recreate the look for your littles.
Boy and Girl Sibling Costumes
1. ‘The Wizard of Oz’
The Wizard of Oz is full of kids’ costume possibilities, from the story’s four heroes to the witches to just about anyone in Munchkin Land. With one sister as Dorothy, any combination of characters will be instantly recognizable and make for one of the sweetest trick-or-treating crews around.
2. Cruella de Vil and a Dalmatian
One of the most recognized Disney movies of all time also happens to make an incredible Halloween costume for siblings.
3. Bluey and Bingo
While Bluey and Bingo are sisters, we think any sibling duo can dress up as the most lovable Heeler pups— Bluey, Bingo, or cousin Muffin (a new costume this year!). And they likely won’t want to take off their costumes until Thanksgiving (or later).
4. Ariel and Flounder from ‘The Little Mermaid’
Ariel needs her friend and sidekick, Flounder, to make this movie-inspired costume extra special. Add more Disney Halloween costumes to the mix with Sebastian, Ursula, or other sea creature costumes, too!
5. Woody and Jessie from ‘Toy Story’
Jessie and Woody make an adorable pair for a Toy Story-themed sibling costume for a brother and sister. Have more than two kids? Add Buzz, Bo Beep, Rex, or any others!
6. Little Red Riding Hood and the Big Bad Wolf
This classic duo is a cute costume option for brothers and sisters. Not to mention a fuzzy wolf costume is cozy for a colder night of trick-or-treating.
7. Pebbles and Bamm-Bamm from ‘The Flintstones’
Having a sibling is like having a built-in best friend, so what’s a better brother-sister costume than this timeless bestie couple? It’s also easy to make it a creative family costume with parents as Fred and Wilma.
8. Poppy and Branch from ‘Trolls’
For kids who’d love a creative hair moment, consider dressing sibs as this memorable musical pair from the Trolls movies.
9. Annie and Sandy from ‘Annie’
For a nostalgic sibling costume idea, dress big sis as Annie and little bro as a puppy—or get the familiy dog in on the costume—so they’ll never be fully dressed without a smile.
10. Alice in Wonderland and The Queen of Hearts
Send your little ones off on an adventure to Wonderland with this whimsical duo in an Alice in Wonderland and Queen of Hearts costume. More siblings? No problem. Choose from a host of characters, from the White Rabbit to the Mad Hatter, to round out the group.
11. Mickey and Minnie Mouse
Speaking of iconic duos, Mickey and Minnie are the ultimate pair perfect for a brother and sister sibling costume. If you have more kids or want to make it a family costume, the OG characters Goofy, Daisy, and Donald are easy Disney costumes. Plus, you can get the family pet included as Pluto.
12. Wednesday and Pugsley
Even though we have to wait until 2025 for Season 2 of Wednesday, this older sister and little brother pair epitomize Halloween vibes any year.
13. Miles Morales and Gwen Stacy from ‘Into the Spiderverse’
Superhero vibes abound in this timely sibling costume from the popular movie franchise Into the Spiderverse.
14. Jane Goodall and a Chimp
A simple safari outfit can transform into a sibling costume honoring the renowned primatologist Jane Goodall. Anyone who knows a thing about her knows wherever she was, a chimpanzee wasn’t far away!
Costumes for Sisters
15. The Sanderson Sisters from ‘Hocus Pocus’
Another perfect pick for sister siblings (or a group or family costume), the Sanderson Sisters from hit Halloween flicks Hocus Pocus and Hocus Pocus 2.
add a coordinating tutu for this cute sibling costume
16. Elsa and Anna from ‘Frozen’
We love this sibling costume idea because there are so many ways to make it your own. We love combinations like Elsa and Anna, Anna and Olaf, Sven and Kristoff, and more! Or, if your girls BOTH want to be Elsa, that’s OK, too!
17. Bo Peep and a Sheep
Whether she’s Bo Peep with her sheep or Mary with her little lamb, this costume is too sweet—especially for a little sibling who already follows their older sister around.
18. Cher and Dee from ‘Clueless’
Your kids might still be too young to see the movie, but this cute sister costume featuring fashionista besties Cher and Dionne from Clueless will be a hit with fellow parents.
19. Dottie and Kit from ‘A League of Their Own’
Channel this classic ’90s film with costumes that celebrate the professional female baseball league of the 1940s. We dug up uniforms for the Rockford Peaches and the Racine Belles to make a throwback costume for real-life sisters playing onscreen siblings, Dottie and Kit.
20. ‘Troop Beverly Hills’ Costume
“Beverly Hills, what a thrill!” This cute costume for sisters honors another throwback movie, 1989’s Troop Beverly Hills.
21. The Barbies Sister Costume
While The Barbie Movie dominated headlines and award shows last year and was a top 2023 Halloween costume, The Barbies are still a cute pick for a group of friends or sisters this year. And, of course, any male buddies or brothers can go as the Kens—or Alan.
22. Cute Witch Costumes
Witches were essentially a sisterhood. So if you’re looking for a classic Halloween costume for sisters, consider a pair of adorable witches. Have more siblings? One can be a black cat.
Costumes for Brothers
23. ‘Where the Wild Things Are’
Perfect for your wild little ones on the most fun night of the year! With this costume, they can have a blast bringing their favorite children’s book to life.
24. Dinosaur Brothers
For little dudes in their dinosaur era, this Halloween costume will be a hit on its own—or as a family costume with Jurassic Park movie vibes.
25. ‘Ratatouille’
Chef costumes are a classic choice. But this creative costume for brothers adds a little something special by pairing Alfredo Linguini and his secret sauce, kitchen helper Remy from Ratatouille.
for a special prop, grab a light-up chef’s hat with Remy inside
26. Super Mario Bros.
Kiddos have always been fans of brothers Mario, Luigi, and their gang, but with the release of the new movie in 2023, Super Mario Bros. made a comeback in a big way.
27. ‘Napoleon Dynamite’
Every Napoleon Dynamite sibling costume needs a Napoleon, but brothers can choose from any one of the memorable cast characters from this 2004 cult classic—like Pedro, Kip, or Rex.
28. Maverick and Goose from ‘Top Gun’
The sequel to Top Gun, Top Gun Maverick, brought this iconic duo back to the forefront in 2022. Little bros can become each other’s wingmen in matching navy pilot jumpsuits—or a cute costume combo with Goose in a Hawaiian shirt and Mav in a bomber jacket (and don’t forget the aviators!)
29. Marty McFly and Doc Brown from ‘Back to the Future’
This throwback costume for brothers will delight fellow parents raised in the ’80s and ’90s. Dress a little Marty in the iconic red puffer vest and Doc Brown in a white lab coat. For extra Halloween DIY points, outfit a wagon as the DeLorean time machine to take them trick-or-treating.
30. Sully and Mike from ‘Monsters Inc.’
Buddies Mike and Sully from Disney Pixar’s Monsters Inc. and Monsters University are a funny pair in their own right. But they’d also make a fun combo for a sibling costume.
3+ Sibling Halloween Costume Ideas
31. Winnie the Pooh & The Hundred Acre Wood Crew
So many sweet characters can be found in The Hundred Acre Wood between Pooh, Piglet, Tigger, Eeyore, and Roo. You can even get pets in on the costume action with this sweet group costume.
32. From the Garden Group Siblings Costume
Whimsical garden creatures can be cute sibling costumes to DIY. Think snails, mushrooms, butterflies, gnomes, fairies, and more!
33. ‘Star Wars’ Siblings
Whether you and your little ones are fans of the original movies or the new releases, with so many characters, your whole family can get into the fun of a Star Wars-themed costume.
34. ‘Peter Pan’
The Neverland crew has so many members that siblings can create the ultimate Peter Pan group costume with Tinker Bell, Captain Hook, Wendy, Michael, and, of course, Peter Pan!
35. Superheroes
With an endless supply of character options, siblings can create any costume combo they want—like Super Girl and Wonder Woman, Batman and Robin, Black Panther, and many, many more.
36. Harry Potter Siblings Costume
Whether your kids are more Gryffindor or Hufflepuff, Hogwarts School is full of sibling costume options.
37. Scooby Doo & Crew
A sibling group costume can include anyone who can fit in The Mystery Machine—Scooby, Shaggy, Velma, Daphne, and Fred.
38. Goldilocks & the Three Bears
This classic tale can inspire the cutest sibling Halloween costume for 3 or more family members with mom or sister as Goldilocks and the rest of the family dressed as cute and cuddly bears.
Creative Sibling Matching Costumes
39. Lion Tamer and Fierce Lion
A circus ringleader costume can double as a brave lion tamer with the addition of a small hula hoop. There are plenty of lion costumes around, too, but this handmade option is extra sweet for transforming your little one from toddler to fearsome beast.
40. Astronaut and Alien
Your little ones will be ready for blastoff with these sibling costumes that are out of this world.
41. Starbucks Barista and a Frappucino
If your kids always ask for some sweet drink from the back seat while you’re grabbing your morning pick-me-up on the way to school, this one’s for you.
42. Firefighter and Dalmatian
There’s not a duo out there quite as iconic as this one—plus it lends itself to a DIY firetruck with their stroller or wagon. Siblings are sure to feel like heroes all night long in these costumes.
43. Butterfly and Caterpillar
Perfect for sleepy newborns and their rambunctious big siblings, a butterfly and caterpillar duo is part dress-up fun, part science lesson, and 100 percent cuteness overload.
44. Honeybee and Flower
There may be nothing cuter than a baby dressed like a honeybee—except if you include a beautiful bloom for good measure.
45. Farmer and Baby Chicken
There’s a reason baby chicken costumes are a dime a dozen come Halloween: They are undeniably adorable. Make it a coordinating sibling costume by encouraging one child to dress as a farmer.
46. Rabbit and Carrot
What could make for a cuter photo op than your children dressed in these darling ensembles? Or if your kid hates vegetables, you could also pair a magician with this cute rabbit.
Twin Halloween Costumes
47. Thing 1 and Thing 2
There’s nothing quite like a classic. For siblings who go together as well as a cat in a hat, there’s not a better costume out there. Shop costumes here.
48. Ketchup, Mustard, and a Hot Dog
Some other things just go together—like ketchup and mustard. And if you have a third child or pet, a hot dog rounds out this playful costume. Grab these cute condiment costumes on Amazon here.
49. Twinkies Twin Costume
One of America’s most beloved sweet treats always comes in a pack of two. So, who’s better for this costume than siblings that came that way, too?! This option is perfect for very little ones—when comfort and warmth are the top priorities. Shop the sleep sacks here.
50. Buy One, Get One Free Twin Costume
This super easy twin costume is perfect if you’re going for something simple yet witty, funny, and very specific to twins. Shop matching BOGO onesies here.
51. Two Peas in a Pod
A perfect costume for all twins! Given the fact that they quite literally came from the same pod, your cuties will undoubtedly rock this sweet look. Shop a similar peapod costume here.
51. Peanut Butter and Jelly
For a pair that’s just meant to be, consider a peanut butter and jelly twin costume so cute that you’ll want to eat them right up. Shop the costume on Etsy here.
52. Annie & Hallie from ‘The Parent Trap’ Costume for Twins
The Parent Trap is probably the most iconic twin movie of all time, and this super simple sibling costume for Halloween is the perfect way to celebrate little twins of your own. Grab Camp Walden tees and pair them with green shorts plus the torn picture of their parents is just the cutest touch.
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Kathy Sisson, Senior Editor
A Halloween enthusiast and mom of two, Kathy is passionately committed to sharing the honest, helpful—and often humorous—stories of motherhood, as she navigates her own everyday adventures of work, marriage, and parenting. She honed her creative and strategic skills at advertising agencies in Detroit and Chicago, before pivoting from marketing to editorial. Now instead of telling brand stories, she’s sharing her own, with articles published across popular parenting sites—including hundreds of stories on The Everymom.