Halloween hits different when you’ve got your bestie by your side, right? Sure, you can roll up solo in a vampire cape, but let’s be real—duo costumes steal the show every time. Whether you’re going for spooky, funny, or full-on nostalgic, the right best friend costume screams we planned this and we nailed it.
I’ll admit, I’ve gone through my fair share of trial-and-error duo costumes. (Let’s just say the year my friend and I tried to DIY a “peanut butter and jelly” situation with cardboard was… less iconic and more tragic.) But hey, mistakes were made so you don’t have to make them.
So, if you’re hunting for inspiration, I’ve rounded up 12 iconic Halloween costumes for best friends and duos that are guaranteed to turn heads, spark laughs, and flood your Insta DMs with “OMG where’d you get that?”
1. Bonnie and Clyde
Few duos are as classic—and rebellious—as Bonnie and Clyde. Think 1930s chic with a criminal twist.
- One of you rocks a vintage beret and pencil skirt.
- The other throws on suspenders, a newsboy cap, and maybe a (fake) Tommy gun.
Why it works? Because everyone loves a little outlaw energy. Plus, you’ll look like you stepped out of a sepia-toned gangster flick.
Ever wondered why couples and friends love this costume so much? Simple—it’s equal parts romantic and badass.
2. Mario and Luigi
Yeah, I know—it’s been done a million times. But trust me, it never gets old.
- Red cap + blue overalls = Mario.
- Green cap + blue overalls = Luigi.
- Optional: fake mustaches for extra LOLs.
The best part? You can easily thrift or DIY most of the pieces. IMO, it’s the perfect mix of nostalgia and crowd-pleaser.
3. Wednesday and Enid (from Wednesday)
Netflix’s Wednesday basically gifted us a bestie costume blueprint.
- One of you channels Wednesday Addams with her gothic black dress and deadpan glare.
- The other brings the sunshine as Enid Sinclair, rocking pastels, color, and werewolf accessories.
Together, you’re literally opposites attract—moody vs. bubbly. And who doesn’t love a little personality clash?
4. Cher and Dionne (Clueless)
If you and your bestie love fashion, this one is chef’s kiss.
- Cher’s iconic yellow plaid outfit? Always a win.
- Dionne’s black-and-white plaid with the fabulous hat? Equally fire.
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You basically walk into the party yelling, “Ugh, as if!” without even opening your mouth.
5. Wayne and Garth (Wayne’s World)
This one hits if you want something comfy but still recognizable.
- Ripped jeans, flannels, band tees.
- Wayne’s black hat + Garth’s iconic glasses and blond wig.
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It’s low-effort, high-reward. Plus, you get to say “Party time, excellent!” all night long. And who doesn’t want that? :)
6. Thelma and Louise
This duo screams freedom, friendship, and badass women on the run.
- Think denim jackets, scarves, and retro sunglasses.
- Bonus points if you pose in front of a car for photos.
It’s empowering and stylish. Honestly, this one’s on my personal bucket list.
7. Shrek and Donkey
Want laughs instead of glam? Shrek and Donkey will make you the life of the party.
- Green face paint, ogre ears, and a vest for Shrek.
- Gray ears and teeth for Donkey.
You’ll annoy everyone by yelling “Get out of my swamp!”—and love every second of it.
8. Romy and Michele’s High School Reunion
This one’s pure ‘90s gold.
- Romy in pink.
- Michele in blue.
- Both in shiny, metallic dresses with chunky heels.
It’s fun, fabulous, and over-the-top—basically what Halloween should be.
Pro tip: Practice your dance routine from the movie. Trust me, it’ll slay.
9. Harley Quinn and Poison Ivy
If you want a mix of sultry and spooky, this is the ultimate bestie combo.
- Harley: red-and-black chaos with pigtails.
- Ivy: leafy green goddess with vines galore.
This duo nails the chaotic + elegant vibe. Bonus: It works for both casual and elaborate costume levels.
10. SpongeBob and Patrick
If you grew up on Nickelodeon, this one’s non-negotiable.
- SpongeBob: yellow shirt, brown shorts, knee socks.
- Patrick: pink top and green floral shorts.
You’ll instantly be the funniest duo at any party. Honestly, how could anyone not love SpongeBob and Patrick?
11. Velma and Daphne (Scooby-Doo)
Scooby might get all the credit, but Velma and Daphne make the real power duo.
- Velma: orange turtleneck, red skirt, glasses.
- Daphne: purple dress, green scarf, flawless hair.
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It’s easy to thrift and recognizable in seconds. FYI, people will shout “Jinkies!” at you. Get ready.
12. Rick and Morty
For the animated fans, Rick and Morty is an absolute win.
- Rick: lab coat, spiky blue wig, drool accessory (if you’re extra).
- Morty: plain yellow tee and perpetual look of anxiety.
Together, you’re weird, chaotic, and hilarious—aka perfect Halloween energy.
Tips to Nail Your Duo Costume
Choosing the right outfit is half the battle. Execution matters just as much.
Here’s how to crush it:
- Coordinate early. Nobody wants the last-minute Amazon scramble.
- Match the energy. If your friend’s going extra, don’t phone it in with jeans and a hat.
- Props = power. Fake weapons, wigs, or accessories take costumes from “meh” to “wow.”
- Play the part. Commit to your characters. A costume with attitude? Always better.
Why Duo Costumes Hit Different
Sure, solo costumes are cool, but duo costumes just bring something extra.
- They highlight your friendship. Everyone loves seeing besties team up.
- They make photos 10x better. (Seriously, IG thrives on duos.)
- They spread the fun. You’re basically walking entertainment for the night.
Plus, who doesn’t love the chance to quote lines all night? “Schwing!” or “Smash Mouth intensifies.”
Final Thoughts
At the end of the day, Halloween’s about having fun—not stressing over the perfect outfit. But let’s be real: nailing a best friend duo costume feels amazing. From Bonnie and Clyde to Rick and Morty, the options are endless—you just need to pick the vibe that matches your friendship.
So grab your bestie, choose a costume that screams “us,” and own the night. Because when it comes to Halloween? Two’s definitely better than one. ;)