You know what’s better than rocking a great Halloween costume? Rocking a group costume with your besties. Seriously, when the three of you walk in sync into a party, heads turn, jaws drop, and people whisper, “Wow… they understood the assignment.” :)
I’ve done trio costumes a few times—some were epic wins (like when my friends and I nailed the Sanderson Sisters), and some were questionable at best (looking at you, poorly executed Powerpuff Girls with last-minute Walmart wigs). But hey, that’s part of the fun, right?
So, if you and your two ride-or-die partners are looking for 12 trendy trio costume ideas inspired by pop culture, I’ve got you covered. These ideas are fun, recognizable, and guaranteed to make you the stars of the night. Let’s jump in.
1. The Sanderson Sisters (Hocus Pocus)
Classic? Yes. Overdone? Maybe. But let’s be real—it never fails.
- Winifred: Rock the iconic fiery red hair and green dress.
- Mary: Don’t forget the sideways lip smirk.
- Sarah: Blonde wig, flowy purple dress, and lots of dramatic twirling.
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Ever noticed how everyone at the party instantly yells “Amok! Amok! Amok!” when they see this trio? Yeah… expect that.
2. Harry, Ron, and Hermione (Harry Potter)
Want an easy but effective costume? Boom.
- Grab robes, ties, and wands—done.
- Bonus points if one of you carries a stuffed owl or rat.
- Even better if someone really commits and shows up with a time-turner or a broken wand.
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FYI: If you’re the Hermione of your group, you’re automatically in charge of organizing the costumes… because obviously.
3. The Powerpuff Girls
Sugar, spice, and everything nice… plus a lot of eyeliner.
- Blossom: Pink dress + big red bow.
- Bubbles: Light blue dress + pigtails.
- Buttercup: Green dress + sass for days.
Honestly, these costumes are easy DIY projects. Just grab solid-color dresses, black belts, and knee-high socks. IMO, it’s one of the cutest group looks ever.
4. Alvin and the Chipmunks
This one’s criminally underrated.
- Alvin: Red sweater with a big “A”.
- Simon: Blue hoodie + nerd glasses.
- Theodore: Green hoodie and snacks in hand (because food is a personality trait).
Trust me, everyone loves the snack guy.
5. The Plastics (Mean Girls)
On Wednesdays, we wear pink. Enough said.
- Regina George: Queen bee vibes, white tank, and that infamous “cut out” shirt if you’re bold.
- Gretchen Wieners: Plaid skirt and desperate-to-please energy.
- Karen Smith: Bunny ears or just clueless charm.
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Just remember: Don’t sit with anyone else.
6. The Golden Trio (Star Wars: Luke, Leia, Han Solo)
Star Wars fans will worship you.
- Leia: Iconic white dress and side buns.
- Luke: Jedi tunic and lightsaber.
- Han Solo: Vest, boots, and roguish smirk required.
Ever noticed how Han always steals the spotlight? Yeah, prepare for that friend to eat up all the compliments.
7. Shrek, Donkey, and Fiona
Unhinged? Absolutely. Hilarious? Even more so.
- Shrek: Big green ears, beige tunic, Scottish accent optional but encouraged.
- Donkey: Grey onesie and a LOT of enthusiasm.
- Fiona: Pick your version—classic princess or fierce ogre.
If you pull this off, you’ll own the party. Like, no competition.
8. The Hex Girls (Scooby-Doo)
Calling all 90s kids who had a crush on a cartoon band. Don’t lie—we all did.
- Thorn: Gothic redhead with vampire aesthetic.
- Dusk: Drummer chic with short blonde hair.
- Luna: Purple hair and the most mystical vibes.
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This trio is edgy, nostalgic, and still trendy.
9. The Kardashians (Pick Any Three)
Hear me out: this one’s hilarious if you play it up.
- Kim: Bodycon dress, contour for days.
- Khloé: Tall glam queen energy.
- Kourtney: The monotone, deadpan delivery sells it.
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Just walk around saying “literally” a lot, and you’ve nailed it.
10. The Mystery Inc. Crew (Pick Any 3 from Scooby-Doo)
Everyone knows this crew, so mix and match:
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Velma: Orange sweater, red skirt, glasses.
- Daphne: Purple dress, green scarf, long lashes.
- Fred: White sweater with blue neckerchief.
- Or swap in Scooby—brown onesie FTW.
Pro tip: Have Velma drop her glasses at least once for authenticity.
11. Stranger Things Trio (Pick a Season, Any Season)
This one’s super flexible.
- Season 1: Mike, Dustin, Lucas in 80s kid gear.
- Later seasons: Eleven, Max, and Will work great.
- Even better: Dress as Eddie, Steve, and Robin—arguably the best trio.
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And yes, someone has to carry a box of Eggos. It’s the law.
12. Mario, Luigi, and Princess Peach
Honestly? Always a crowd-pleaser.
- Mario: Red hat, mustache, overalls.
- Luigi: Same, but green.
- Peach: Puffy pink dress and a tiara.
If you’re extra, bring bananas or fake turtle shells. People love interactive props.
Tips for Making Trio Costumes Even Better
Okay, you’ve got the ideas. But here’s how to make them pop:
- Commit to the bit: It’s not just the outfit—it’s the attitude. (Your Donkey better be singing “I’m All Alone” at least once.)
- DIY vs. Store-Bought: IMO, DIY versions usually look more fun and personalized. Plus, you’ll save some cash.
- Props matter: Wands, wigs, snacks, whatever—it’s the little details that get you compliments.
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Stay comfortable: If your shoes hurt or your wig is itchy, you’ll regret it halfway through the night.
Final Thoughts
At the end of the day, the best trio costume isn’t about being the most original or the most glamorous—it’s about having fun with your friends. Costumes are just an excuse to be extra for a night, so lean into it, laugh when things fall apart, and own whatever look you choose.
So, what’s it gonna be? The witchy chaos of the Sanderson Sisters? The nostalgia of the Powerpuff Girls? Or the chaotic hilarity of Shrek, Donkey, and Fiona?
Whatever you pick, just remember: the trio that costumes together, stays together. ;)