25 Trio Halloween Costumes
Halloween is one of those magical times when adults get to dress up without judgment, and friend groups get to show off their creative side.
But here’s the thing—finding a costume for three people can feel like trying to share one slice of pizza.
Whether you’re heading to a big party, trick-or-treating with your kids, or just want an excuse to look ridiculous in public with your BFFs, I’ve rounded up 25 trio Halloween costumes that are equal parts funny, clever, and Instagram-worthy.
Ready? Let’s talk trios.
1. The Powerpuff Girls
Classic, colorful, and instantly recognizable.
Blossom, Bubbles, and Buttercup scream nostalgia for every ’90s kid. Bonus points if you make your Mojo Jojo friend jealous.
2. Harry, Ron, and Hermione
Honestly, if you’re a Harry Potter fan, this trio is a no-brainer.
Robes, wands, and a dash of Gryffindor courage—what more do you need? (Except maybe Butterbeer at the party.)
3. Alvin and the Chipmunks
This one’s hilarious because you don’t even need much: oversized sweaters with letters and maybe some DIY ears.
Plus, it’s cozy. And who doesn’t want to belt out “Christmas Don’t Be Late” at a Halloween party?
4. Shrek, Donkey, and Fiona
Couple plus third wheel? Perfect. One of you gets green paint, one gets donkey ears, and the third gets a tiara. Honestly, this trio costume always gets laughs.
5. Rock, Paper, Scissors
Ever argue with your friends over what to wear? This one literally solves it. All three of you win. Or lose. Depends on how committed you are to cardboard.
6. Mario, Luigi, and Princess Peach
Super Mario Bros is always a crowd favorite. Overalls, fake mustaches, and a pink dress—you’re instantly recognizable. And let’s be real, everyone loves Peach.
7. Ghostbusters
Who you gonna call? Exactly. This one’s great because you just need matching jumpsuits and proton pack props (DIY-friendly if you’re crafty).
8. The Sanderson Sisters (Hocus Pocus)
If you and your friends want to go full witchy vibes, the Sanderson sisters are iconic. Big hair, big energy, and the chance to say “Amok! Amok! Amok!” all night.
9. The Three Blind Mice
Easiest. Costume. Ever. Mouse ears, sunglasses, walking sticks. Cute, funny, and low effort.
10. Scooby, Shaggy, and Velma
This is perfect if you’ve got a dog friend (or just someone willing to wear a dog onesie). Velma’s orange sweater alone is worth it. Jinkies!
11. Minions
Yellow shirts, overalls, and goggles—that’s it. Bonus if you all mumble nonsense throughout the night.
12. The Three Musketeers
Foam swords, capes, and hats with feathers. You’ll look noble and slightly ridiculous at the same time. Win-win.
13. Snap, Crackle, and Pop (Rice Krispies)
Who doesn’t love cereal mascots? You’ll be instantly recognizable and maybe inspire people to snack at the party.
14. The Golden Girls
Dorothy, Blanche, and Rose (sorry, Sophia fans). Add wigs, pearls, and sass. Honestly, this one steals the show every time.
15. Pac-Man and Ghosts
One of you is Pac-Man, the other two are ghosts. It’s retro and fun. And let’s face it—who doesn’t want to be Blinky or Inky for a night?
16. Hocus Pocus Book, Candle, and Cat
Want a unique twist on the Hocus Pocus craze? Skip the witches and go as the spooky book, black flame candle, and Binx the cat. Creepy, clever, and different.
17. Toy Story’s Woody, Buzz, and Jessie
Cowboy hat? Check. Space ranger wings? Check. Red braid wig? Check. This costume idea is practically made for trios.
18. The Three Little Pigs
Pink ears, pig snouts, and maybe some straw/brick/wood props if you’re extra. Just hope no one shows up as the Big Bad Wolf.
19. SpongeBob, Patrick, and Squidward
Imagine one of you walking around in a boxy SpongeBob outfit while the other sulks as Squidward. Comedy gold.
20. The Kardashians
Because honestly, what’s scarier than dressing like reality TV royalty? Sunglasses, heels, dramatic attitudes—you’ve nailed it.
21. Clueless Trio (Cher, Dionne, and Tai)
Plaid skirts, knee-high socks, and total ’90s vibes. This one is always Insta-approved.
22. The Addams Family Trio
Gomez, Morticia, and Wednesday. Dark, chic, and spooky perfection.
23. Men in Black
Suits, sunglasses, and toy blasters. Simple but powerful. Plus, you’ll feel way cooler than you actually are.
24. Starbucks Trio: Latte, Barista, and Logo
Yes, it’s niche, but picture it: one in a green apron, one as a giant coffee cup, and one as the mermaid logo. Honestly? Genius.
25. Barbie Trio (Different Versions)
With Barbie mania in full swing, why not each pick a different Barbie? Astronaut Barbie, Cowgirl Barbie, Malibu Barbie—the options are endless. And don’t forget a Ken if you pick up a fourth. 😉
Tips for Pulling Off a Killer Trio Costume
Okay, so you’ve got ideas. But let’s be real—half the fun is nailing the execution. Here are a few pro tips:
- Coordinate colors: Even if your costumes are different, make sure the colors look good together.
- DIY when possible: Half the fun of Halloween is crafting something ridiculous out of cardboard and hot glue.
- Assign roles early: No one wants to fight over who gets to be Blossom vs. Buttercup the night before.
- Play the part: Costumes get 10x funnier when you stay in character. Imagine SpongeBob without the laugh—tragic.
Final Thoughts
Halloween isn’t just about candy (though let’s be real, Reese’s Peanut Butter Cups make everything better). It’s about creating memories with your friends, laughing at how ridiculous you look, and maybe—just maybe—winning that costume contest.
So, whether you’re leaning into classic trios like Harry, Ron, and Hermione, or going for quirky combos like Rock, Paper, Scissors, the key is to own it. Dress loud, commit to the bit, and most importantly—have fun.
Now tell me: which trio costume are you calling dibs on this year? 🙂
