18 Cute Sister Halloween Costumes That Are Perfect for Any Inseparable Duo or Trio
One thing you can both agree on? Matching costumes are the way to go.
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If there's anyone you can convince to show up to a Halloween party in matching costumes, it's your sister. After all, she's the person you can always count on to make you laugh, dry your tears, and in this case, make your Halloween dreams come true. While you can certainly take the easy route and pick a head-to-toe matching look, there are so many other sister Halloween costumes made with you and your built-in BFF in mind. Take a look at the following ideas to find a costume for sisters of varying ages, from toddlers to adults.
Even the most dynamic duo (or terrific trio) may have a hard time agreeing on their 2021 look: One may want to go with something inspired by her favorite book characters or pop culture icons, while the other may prefer a scary costume that taps into the frights of the holiday. First, settle on a theme, then consider if you'd rather buy ready-made costumes or make homemade Halloween costumes. But it doesn't have to stop there: If you really want to make it a family affair, convince your other brothers and sisters to get involved for an epic siblings costume.
Instagram Filter Halloween Costume
You have two options: Pick filters that match your personalities or go for ones that let you play pretend (the dog filter, for example). To make, you should each select your favorite filter on Instagram and point your phones at a blank surface to take a screenshot. Print the screenshot on a thick board and cut a circle or square in the middle to fit your faces. To really commit, add accessories and makeup that resemble the filter.
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'Grace and Frankie' Halloween Costume
Your sisterhood motto: "Everything's better when there's wine involved." Not to mention, this costume is a sweet way to send off such an iconic show. Cheers!
Dancing Girl Emoji Halloween Costume
Show everyone that you take your role as dancing buddies very seriously. You'll each need a black tee, shorts, socks and bunny ears to create this look.
Carpool Karaoke Halloween Costume
If anyone's ever questioned your karaoke skills, let this clever costume showcase just how talented you two are. Add silver and black paint to a yellow presentation board to resemble a taxi, then attach velcro straps. Loop the straps over your shoulders, grab your mics and work your way through your playlist.
'Troop Beverly Hills' Halloween Costume
In the wilderness of life, you'll be fine as long as you have your sister by your side! Your old Girl Scout uniforms may be long gone, but you can replicate the look with khaki dresses, green scarves and leather belts. Add jewelry and sunglasses for a touch of Beverly Hills glam.
Get the tutorial at Living After Midnite »
RELATED: Best Movie and TV Character Costumes
'Hamilton' Schuyler Sisters Halloween Costume
Once you decide who's who (Elizabeth, Angelica or Peggy), start warming up your voices, so you can hit the stage — we mean, streets. Work!
The female leads in Black Panther were absolutely legendary, which is why this Marvel-inspired costume is perfect for any super sister duo.
Beach Ball and Palm Tree Halloween Costume
You and your sister go together like peanut butter and jelly, pencils and paper, beach balls and palm trees. This adorable costume proves that point.
'The Parent Trap' Twins Halloween Costume
It doesn't get any easier than this The Parent Trap costume. All you need are matching T-shirt sets and a printout of the infamous ripped photograph.
SilverThreadsbyRonda 'A League of Their Own' Halloween Costume
Your relationship is really in a league of its own, which makes this Halloween costume all too appropriate. Throw on your pinkest baseball gear for a Halloween home run.
Witch and Black Cat Halloween Costume
One sister goes as a cat, the other goes as a witch, but together, you'll steal the show. If you're similar sizes, you can even switch it up for school events, trick-or-treating and other parties.
'The Powerpuff Girls' Halloween Costume
If you and your sisters are '90s kids at heart, then you know there's no better costume for three than Bubbles, Blossom and Buttercup. The only thing left to do is decide who's who.
Ketchup and Mustard Halloween Costume
This is yet another costume that can be pulled together with clothes you already have in your closet and a few craft supplies (the hats are made of pie tins and colored cardstock).
AllDressedUpCouture The Sanderson Sisters Halloween Costume
On Halloween night, the Sanderson Sisters are the spookiest siblings in town. Imitate their likeness for a costume that will put a spell on everyone you meet.
Chewbacca and Rey Halloween Costume
For an out-of-this-world look, dress as your favorite characters from Star Wars. Choose whichever leads you like (although we think this Chewbacca and Rey costume is super cute).
'The Flintstones' Halloween Costume
Become Wilma and Pebbles by adding a few Flintstones-friendly accessories to white and green dresses, respectively.
Elsa and Anna Halloween Costume
Elsa and Anna are #sistergoals, which makes dressing as them for Halloween an absolute must. You can even DIY your own princess outfits to put a personal spin on the Disney dresses.
Juliana is a writer, editor and SEO strategist with over six years' of experience on the editorial staffs of publications including Reader's Digest, Best Life and Good Housekeeping. She covers everything from holiday and home to travel and food, and lives in New York City, where she can often be found at hot yoga or raiding the candy aisle at CVS.
Amanda Garrity is a lifestyle writer and editor with over seven years of experience, including five years on staff at Good Housekeeping, where she covered all things home and holiday, including the latest interior design trends, inspiring DIY ideas and gift guides for any (and every) occasion. She also has a soft spot for feel-good TV, so you can catch her writing about popular shows like Virgin River, Sweet Magnolias, Hallmark Channel’s When Calls the Heart and more.
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