Better Than a Zombie Ex-Wife—9 Totally Fetch 'Mean Girls' Costume Ideas for Halloween!

Nicole Bustamante

October 22, 2022 at 9:46 PM·5 min read

"In [mean] girl world, Halloween is the one night a girl can dress however they want and no one can say anything about it."

Channel one of the best early 2000s movies (a true cult classic!) this Halloween with a Mean Girls costume. Thankfully we don’t live in their “Plastics” world, so you can dress up in whatever you want. Throwing on lingerie and mouse ears? So is Karen Smith. Want something more comfortable? Try a pink tracksuit on for size.

There is a range of Mean Girls outfits to choose from and we’ve rounded up everything you need to replicate your character of choice.

Best Mean Girls Halloween Costume Ideas

Shop nine Mean Girls costume ideas below and whatever you do, just don’t push anyone in front of a speeding school bus.

Cady Heron Costume Essentials

Replicate main character Cady’s iconic Mean Girls look with any pair of low-rise jeans (yes the Y2K trend is officially back) and a long sleeve shirt. And throw in a red-hair wig to complete any of these Cady Heron outfits. If you’re feeling a little extra, add a Mathletes jacket to really round things out. Maybe you’ll even find your Aaron Samuels.

SHEIN Scoop Neck Form-Fitting Henley Tee, $9.00 at SHEIN

AE Low-Rise Kick Bootcut Jean, $37.46 at American Eagle

Marc Fisher Glorify Boot, $99.99 at DSW

AKStore Long Curly Hair Wig, $13.85 on Amazon

Xpril Varsity Jacket, $39.99 on Amazon

Regina George Costume Essentials

Raise your hand if you have ever been personally victimized by Regina George (and her looks). Yup, our hand is up too. But if you can’t beat them, join them by, well, becoming them for Halloween. We've got everything you need when it comes to Regina George outfits!

A Little Bit Dramatic Tank Top, $19.99 on Amazon

YEMAK Women's Cropped Cardigan Sweater, $23.99 on Amazon

Chouyatou Pink Pleated Skirt, $17.98 - $24.99 on Amazon

Elisabet Tang Pumps, $38.99 - $54.99 on Amazon

U7 Initial Necklace, $12.99 on Amazon

DAUERHAFT Pink Flip Phone, $34.79 on Amazon

Hidora Small Retro Classic Shoulder Bag, $18.99 on Amazon

Burn Book Notebook, $13.99 on Amazon

Related: 50 Best Mean Girls Quotes

Gretchen Wieners Costume Essentials

Carry everyone’s secrets in your sky-high hair and kiss Jason goodbye with the ultimate Gretchen Wieners outfits. Don’t forget to pile on the chunky, silver jewelry!

Boohoo Long Sleeve Rib Crop Top, $22.00 at Boohoo

WDIRARA Khaki Plaid Mini Skirt, $15.99 - $27.99 on Amazon

Lulus Lianya Black Ankle Strap Heels, $39.00 at Lulus

7th Moon Lock Pendant Necklace, $6.99 on Amazon

Crazy2Shop Chain Bracelet with Heart Charm, $8.95 on Amazon

Karen Smith Costume Essentials

Not everyone can have a fifth sense, err, wait sixth sense like Karen Smith. But you can certainly dress like her!

LSJSN Sweet Pink Bow Top, $28.00 on Amazon

Motel Ima Skirt Pu Hot Pink, $39.50 at Princess Polly

Steve Madden Pink Patent Stilettos, $24.40 - $99.99 on Amazon

OLEVS White Quartz Watch, $29.99 on Amazon

June George Costume Essentials

Certified cool mom, June George knew exactly what the 411 was when she showed up in a hot pink tracksuit. Channel the ultimate “You’re doing great sweetie!” kind of mom with this cute and comfy look. Guaranteed to get you all the hot gossip, all night.

NE PEOPLE Women’s Tracksuit Set, $31.99 - $39.99 on Amazon

Vanity Fair White Cami, $16.24 on Amazon

Belinlen Plastic Margarita Glasses, $19.99 on Amazon

MORICA Blonde Wig, $25.69 on Amazon

Janis Ian Costume Essentials

Don’t cross Janis Ian or she will scheme to ruin your perfect body, perfect boyfriend and perfect friend group. What you can do is copy her look for Halloween.

PrestigiousBerber Rubbish T-Shirt, $9.99+ on Etsy

Eddie Bauer Favorite Long-Sleeve Crewneck T-Shirt, $30.00 at Eddie Bauer

ASOS DESIGN Pleated Midi Skirt In Black, $36.00 at ASOS

Chuck Taylor All Star Classic, $60.00 at Converse

TED BAKER LONDON Painted Stripe Cotton Blend Dress Socks, $16.00 at Nordstrom

NYX PROFESSIONAL MAKEUP Jumbo Eye Pencil, $5.50 on Amazon

Damian Leigh Costume Essentials

She doesn’t even go here! But you know who does? Damian. So do as Damian would and dress like the iconic character for Halloween. Bonus points for a handmade sign.

Gildan G185 Heavy Blend Hooded Sweatshirt, $14.44 - $37.37 on Amazon

Levi’s 725 High Rise Bootcut Women's Jeans, $69.50 at Levi’s

J.Crew Road Trip Sneakers, $98.00 at J.Crew Factory

JOOX Aviator Sunglasses, $13.99 on Amazon

Ms. Norbury Costume Essentials

Tina Fey’s iconic character deserves more credit, she did go through the toughest year of her life and still managed to control the school after the release of the Burn Book. Plus she can rock a good business casual pant. Bonus points if you print out her Burn Book page.