20 Best 2 Girls Halloween Costumes for Friends & Sisters

This DIY Tic Tac costume is such a fun idea for two girls because each one can dress as a different Tic Tac flavor while still matching as a pair.

I have free printables plus a full step-by-step tutorial to help you put the costumes together without having to figure it all out yourself.

Strawberry Shortcake and Lemon Meringue make an adorable best friend Halloween costume for two girls.

Most of the look can be put together with regular clothing in their signature colors, making this a cute duo costume that doesn't require a ton of DIY.

Elmo and Cookie Monster make an easy matching Halloween costume for two girls who grew up loving Sesame Street.

Start with character T-shirts, then add colorful tutus, leggings, or accessories to turn everyday clothes into a simple duo costume.

Bluey and Bingo may be one of the cutest sister Halloween costume ideas around.

Since they're sisters on the show, the pairing is perfect for siblings, but it works just as well for best friends who want matching costumes.

Thing 1 and Thing 2 are classic matching Halloween costumes for sisters, twins, or best friends who are always getting into trouble together.

Red outfits, blue hair, and Thing 1 and Thing 2 signs make the pair instantly recognizable.

Woody and Buzz make a fun Toy Story duo costume for two girls who would rather be cowboys and space rangers than princesses.

You can buy the costumes or DIY the look by adding recognizable details to clothes you already have.

Anyone who has seen the movie knows that wherever Cinderella goes, her fairy godmother isn’t far away.

This is the perfect pairing for a younger and older duo, so there’s no argument over who gets to be Cinderella.

Keep things simple with a couple of onesies this year.

Care bears are an adorable option, and there are so many choices based on the girls’ personalities.

Glinda and Elphaba make one seriously recognizable best friend Halloween costume, especially for girls who love Wicked.

The pink-and-black contrast makes the duo easy to spot, and each girl gets a completely different look while still coordinating.

Taco and Belle—get it? Taco Bell!

This funny duo Halloween costume is perfect for two girls who would much rather get laughs than wear matching princess dresses.

One dresses as a taco and the other as Belle from Beauty and the Beast.

For girls who want creepy instead of cute, the Grady twins from The Shining are an instantly recognizable matching Halloween costume.

The identical blue dresses, white knee socks, and hair clips make this an especially easy costume for twin sisters.

The Olsen twins make a funny throwback Halloween costume for two girls who love all things '90s.

Recreate one of Mary-Kate and Ashley's recognizable matching looks for an easy costume that's especially fun for sisters or twins.

What a great idea for a pair of sisters to wear this Halloween.

To really boost this one up, use a cricut or other machine to make the Camp Walden t-shirts.

Flik and Dot from A Bug's Life make a creative Pixar duo costume you won't see on every other kid at the Halloween party.

Leotards, tights, antennae, and a few homemade details can turn the pair into these colorful little bugs.

Daphne and Velma make a classic best friend Halloween costume that's surprisingly easy to recreate.

Their signature purple and orange outfits can be made mostly from regular clothes—and unlike many Halloween costumes, the pieces can actually be worn again.

Lilo and Stitch make an adorable duo Halloween costume for sisters or best friends with a mischievous streak.

The two characters are instantly recognizable together, and it's a fun choice when the girls don't want to wear matching costumes.

Two Rockford Peaches make a great matching Halloween costume for girls who love sports—or moms who appreciate a good '90s movie reference.

The vintage baseball uniforms make the pair instantly recognizable while still being comfortable enough for trick-or-treating.

Tweedle Dee and Tweedle Dum are the two most confounding characters in Alice in Wonderland and make a funny matching Halloween costume for sisters, twins, or best friends.

Their bright colors and coordinating outfits make the duo easy to recognize, and you can recreate much of the look with everyday clothing.

M&M’s revolutionized costumes forever when they added in their mascot characters.

As a bonus, each girl can pick her favorite color for her costume.

Mike and Sully from Monsters, Inc. make a fun best friend Halloween costume with two very different looks.

Green and blue character shirts, colorful accessories, and a few monster details make this an easy duo costume to put together without sewing an entire furry Sully suit.