25 Trio Halloween Costumes Everyone Will Obsess Over

Halloween is officially around the corner, and if you and your two besties still haven’t figured out your costumes, don’t panic. We’ve got you covered!

Whether you’re looking for cute trio Halloween costumes, funny group outfits, or iconic characters everyone will recognize, these ideas are seriously too good to pass up.

From nostalgic childhood favorites to trendy pop culture looks, we’ve rounded up 25 of the best trio Halloween costume ideas for 2026. Some are super easy to DIY, while others are worth going all out for.

Ready to be the best-dressed trio at the Halloween party? Let’s get into it!

1. The Powerpuff Girls

Three women dressed in colorful dresses, in blue, pink, and green, standing together with playful poses, wearing white tights and black shoes. — Credit: Pinterest

Sugar, spice, and everything nice! Blossom, Bubbles, and Buttercup are the ultimate cute trio Halloween costume. Grab pink, blue, and green dresses, add white knee-high socks or tights, and you’re ready to save the world. Bonus points for matching hairstyles!

2. The Sanderson Sisters

Three women dressed in colorful costumes, portraying characters with distinct hairstyles and capes, striking a playful pose indoors. — Credit: Pinterest

It’s just a bunch of hocus pocus! Winifred, Sarah, and Mary are Halloween royalty for a reason. Think dramatic witch dresses, messy hair, and a little spooky makeup. Perfect for three besties who want to fully embrace the Halloween spirit.

3. Alvin and the Chipmunks

Three women dressed in matching themed costumes standing on a balcony, wearing colorful crop tops with letters S, T, and A, and denim jeans. — Credit: Pinterest

This one is ridiculously easy and guaranteed to get compliments. All you need are red, blue, and green oversized hoodies or t-shirts. Add initials and some cute chipmunk ears. One of the best last-minute trio Halloween costumes!

4. The Plastics From Mean Girls

Three young women posing together in stylish outfits with a backdrop of fabric and floral decorations. — Credit: Pinterest

On Halloween, we wear pink! Regina, Gretchen, and Karen make the perfect iconic trio. Think mini skirts, pink cardigans, and major Y2K energy. If you’re looking for girly Halloween costumes for three best friends, this is the one.

5. Charlie’s Angels

Three women posing together in stylish black outfits, each holding a toy gun, in a well-lit indoor setting. — Credit: Pinterest

Three girls, one iconic costume. Matching black outfits, sleek sunglasses, and a little attitude are all you need to become Charlie’s Angels. It’s effortlessly cool, super easy to recreate, and perfect for anyone who loves a chic Halloween look.

6. HUNTR/X From KPop Demon Hunters

Three women posing in front of a golden backdrop, wearing colorful outfits and styled hair. The woman on the left has dark hair in a bob, the middle woman has long purple braids, and the right woman has long pink hair. — Credit: Pinterest

Rumi, Mira, and Zoey are such a fun choice for a 2026 trio Halloween costume. Recreate their colorful performance outfits with bold accessories, statement boots, and dramatic hairstyles. Perfect for three best friends who love K-pop and want to make an entrance.

7. Totally Spies

Three women in colorful superhero costumes striking dynamic poses in a modern kitchen setting. — Credit: Pinterest

Tell us this isn’t the cutest throwback costume ever! Sam, Clover, and Alex in their iconic green, red, and yellow spy outfits are a guaranteed hit. Grab matching jumpsuits, white boots, and some spy-inspired accessories for the ultimate nostalgic Halloween look.

8. The Three Blind Mice

Three women dressed in black outfits with mouse ears and sunglasses, posing playfully while holding canes in a cozy indoor setting. — Credit: Pinterest

Cute, funny, and so easy to DIY! Wear matching gray or black outfits with mouse ears, sunglasses, and little tails. This is one of those clever trio Halloween costumes that requires almost zero effort but still looks adorable in photos.

9. Clueless Girls

Three women dressed in stylish outfits posing on a staircase. The woman in front wears a yellow plaid mini skirt and top, holding a phone. The second woman in a red outfit stands behind her, while the third woman in a black hat and checkered outfit is also on the staircase. — Credit: Pinterest

As if! Cher, Dionne, and Tai are the ultimate 90s fashion icons. Think plaid mini skirts, cropped blazers, knee-high socks, and platform shoes. This is the perfect aesthetic trio Halloween costume for besties who love a preppy, vintage-inspired look.

10. Three Disney Princesses

Three women in colorful corsets and skirts pose together. One holds a red rose. A disco ball and string lights are visible in the background. — Credit: Pinterest

Why settle for one princess when you can have three? Choose your favorite Disney characters and coordinate your outfits for a magical Halloween trio. Cinderella, Belle, and Aurora would make an especially dreamy combination. Cute, feminine, and perfect for group photos!

11. The Three Little Pigs

Three young women wearing matching outfits with bunny ears, smiling and posing together in a playful manner. — Credit: Pinterest

This costume is almost too cute! Matching pink outfits, pig ears, curly tails, and little snouts are all you need. It’s a funny trio Halloween costume that’s easy to put together, especially if you’re looking for something comfortable and budget-friendly.

12. Sun, Moon, and Stars

Three women posing together, wearing festive outfits with glittery accessories and decorative headbands. The background features hanging stars. — Credit: Pinterest

For the girls who love a dreamy, celestial aesthetic! One of you dresses in gold as the sun, another in silver as the moon, and the third in sparkly navy blue as the stars. Add glittery makeup and celestial accessories for the prettiest Halloween trio.

13. Bratz Dolls

Three individuals posing together in trendy outfits with leopard prints, showcasing bold fashion styles. They are surrounded by a casual indoor setting. — Credit: Pinterest

If you love Y2K fashion, this one’s calling your name. Dress as Cloe, Yasmin, and Sasha with mini skirts, platform boots, tiny handbags, and glossy lips. These girly trio Halloween costumes are all about bold outfits, dramatic makeup, and main-character energy.

14. Men in Black

Three women dressed in black suits and sunglasses pose with toy guns in front of a mirror, showcasing a playful spy theme. — Credit: Pinterest

Possibly the easiest iconic trio Halloween costume ever. Three black suits, white shirts, black ties, and sunglasses. That’s literally it! This costume works for any group of three and is perfect if you want something recognizable without spending hours getting ready.

15. Strawberry Shortcake and Friends

Three women dressed in colorful fruit-themed costumes holding fruit-shaped accessories, standing in a garden with greenery in the background. — Credit: Pinterest

Strawberry Shortcake, Orange Blossom, and Blueberry Muffin make the sweetest Halloween trio. Think colorful dresses, cute hats, and fruit-inspired accessories. If your Pinterest board is full of adorable, nostalgic Halloween costumes, you’ll absolutely love this one.

16. The Three Good Fairies

Three women dressed in colorful, light dresses and flower crowns, posing playfully outdoors at night with a city skyline in the background. — Credit: Pinterest

Flora, Fauna, and Merryweather from Sleeping Beauty are such an underrated trio costume idea. Their pink, green, and blue outfits are instantly recognizable. Add fairy wings, pointed hats, and magical wands for a whimsical Halloween look straight out of a fairy tale.

17. Salt, Tequila, and Lime

Three women in themed costumes posing together. One is dressed as salt, one as a tequila bottle with a sparkly dress, and the third as a lime slice. — Credit: Pinterest

Looking for funny trio Halloween costumes for adults? This one is hilarious. Dress as salt, tequila, and lime using matching themed outfits or simple DIY signs. It’s clever, easy to recognize, and perfect for a Halloween party with your two favorite people.

18. Scooby-Doo Characters

Three young women posing together outdoors at night, dressed in colorful costumes. The woman in the center has cat ears and a brown dress, while the others wear orange and blue dresses, with one featuring a purple skirt. — Credit: Pinterest

Jinkies! A Scooby-Doo trio is always a good idea. Choose Daphne, Velma, and Shaggy, or mix and match your favorite Mystery Inc. characters. The best part? Most of these outfits can be recreated with clothes you already have in your closet.

19. Three Glamorous Vampires

Three women dressed in red and black gothic outfits with capes, standing under a vine-covered structure. The setting is illuminated with warm lighting, enhancing a festive atmosphere. — Credit: Pinterest

Who says vampires can’t be stylish? Coordinate three glamorous vampire looks with black lace, burgundy velvet, dark lipstick, and dramatic eye makeup. This is perfect for anyone who loves gothic Halloween costumes with a sophisticated, slightly spooky twist.

20. The Pink Ladies From Grease

Three young women sitting on the grass, wearing matching pink jackets and black outfits, smiling together outdoors. — Credit: Pinterest

Matching pink satin jackets? Yes, please! Channel the iconic Pink Ladies from Grease with retro hairstyles, black pants, and cute 1950s-inspired accessories. This costume is effortlessly cool and works perfectly for three best friends who want matching Halloween outfits.

21. Three Different Barbies

Three women dressed in pink outfits, posing together for a photo at a celebration, with decorations in the background. — Credit: Pinterest

Come on, Barbie, let’s go party! Choose three different Barbie aesthetics, like Cowgirl Barbie, Rollerblade Barbie, and Classic Pink Barbie. Think pink outfits, fun accessories, and lots of confidence. Such a cute option for a coordinated but not identical Halloween trio!

22. The Three Musketeers

Three young women wearing colorful capes and cowboy hats, standing back to back against a plain wall. — Credit: Pinterest

All for one and one for all! The Three Musketeers make a fun and slightly unexpected Halloween trio. Wear matching capes, tall boots, feathered hats, and carry costume swords. You can make the outfits as classic or as fashionable as you want.

23. Three Race Car Drivers

Three young women posing together in stylish outfits, wearing sunglasses and jackets, standing in front of a window with checkered banners. — Credit: Pinterest

This one is for the cool girls! Matching racing jumpsuits in different colors, sporty sunglasses, and sneakers make an effortlessly stylish trio costume. Add racing-inspired patches or checkered accessories for an extra touch. Comfortable, recognizable, and super fun for Halloween night.

24. Three Different Witches

Three women dressed as witches, wearing black dresses, feather boas, and pointed hats, posing playfully outdoors with autumn foliage in the background. — Credit: Pinterest

A classic Halloween costume with a twist! Instead of matching, each friend chooses a different witch aesthetic. Think a black gothic witch, a pink glamorous witch, and a green woodland witch. It’s the perfect mix of coordinated, creative, and easy to DIY.

25. Angel, Devil, and Cupid

Three women in costumes posing together: one dressed as an angel with a glass of wine, another in a black witch outfit, and the third as a devil in a red dress holding a pitchfork. — Credit: Pinterest

Saving one of the cutest for last! An angel, devil, and Cupid make such an adorable trio. White wings, red devil horns, and pink heart accessories create the perfect combination. This is one of the best cute trio Halloween costumes for three girls who love a girly look.

Which Trio Halloween Costume Will You Choose?

Whether you’re going for cute, funny, nostalgic, or totally iconic, the best trio Halloween costumes are the ones you and your besties have fun putting together.

From the Powerpuff Girls and Totally Spies to glamorous vampires and the Sanderson sisters, there’s something here for every kind of friend group.

The best part? You don’t need a huge budget or complicated DIY skills to create an amazing group costume.

So send this post to your group chat, pick your favorite look, and get ready to turn heads this Halloween!