Adult Costumes

1 - 60 of 599

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Costumes aren't just for kids! Our adult costumes will have grown-ups getting excited for Halloween. We have a selection of the best Halloween costumes for men and women of all styles and sizes. Browse through to find plus size costumes, funny adult costumes, and even sexy costumes. Or pair up with your significant other and choose a stunning couples costume look that'll be sure to win any costume contest!

1 - 60 of 599

Care Bears Adult Classic Grumpy Bear Costume Alt 2

Made By Us Exclusive

Adult Care Bears Classic Grumpy Bear Costume

$68.99

Women's 80s Prom Dress Costume

$68.99-$74.99

Made By Us Exclusive

Cookie Monster Sesame Street Onesie

$68.99-$142.99

Made By Us Exclusive

Adult Sesame Street Elmo Onesie Costume

$68.99

Womens Mock Neck Solid Gold Jumpsuit Costume

$68.99

Made By Us Exclusive

Disney Plus Size Little Mermaid Womens Ariel Costume Dress

$95.99

Sale - 11% Exclusive

Plus Size Freddy Krueger Costume Dress for Women

$61.99$54.99-$61.99*

Deluxe Dark Knight Catwoman Costume

$108.99-$122.99

Made By Us Exclusive

Black and White Skeleton Adult Ugly Halloween Sweater

$61.99

Pokemon Gengar Adult Kigurumi

$122.99

Made By Us Exclusive

Adult Cheer Bear Care Bears Onesie Costume

$54.99

Sale - 17%

Wonder Woman T-Shirt Costume

$40.99$34.99-$54.99*

Sale - 30%

Sonic the Hedgehog Adult Cosplay Union Suit

$68.99$47.99

Sale - 25%

Adult Jack Skellington Tux Shirt

$27.99$20.99

Sale - 50%

Disney Hocus Pocus Stitch Shoppe by Loungefly Natasha Dress

$136.99$68.99

Sale - 33%

Women's Red Wet Look Zip Front Bodysuit

$40.99$27.99-$34.99

Made By Us Exclusive

Adult Pumpkin Poncho Costume

$20.99

Clearance Made By Us

Pumpkin Spice Latte Halloween Sweater for Adults

$54.99$20.99-$27.99

Adult Black and Purple Bats Sweater Dress

Sale - 74% Made By Us

Black and Purple Bats Sweater Dress for Women

$68.99$17.99

Made By Us Exclusive

Adult White Astronaut Jumpsuit Costume

$61.99

The Pokemon Adult Charizard Kigurumi

$122.99

Made By Us Exclusive

Adult Cozy Skeleton Onesie

$68.99

Made By Us Exclusive

Striped Nightmare on Elm Street Freddy Adult Sweater

$54.99

Adult Gryffindor Uniform Harry Potter Sweater Alt 4

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Harry Potter Gryffindor Uniform Sweater for Adults

$47.99

Sale - 33% Made By Us

Women's Beetlejuice Suit Pants

$40.99$27.99-$40.99*

Toy Story Jessie T-Shirt

$27.99

Scarecrow Poncho for Women

$34.99

Sale - 25%

Tigger Pajama Costume

$108.99$81.99

Sale - 13%

Nintendo Pokemon Adult Pikachu Kigurumi

$108.99$95.99-$108.99*

Sale - 40% Made By Us

Adult Bride of Frankenstein Costume Dress

$68.99$40.99

Made By Us Exclusive

Care Bears Deluxe Share Bear Hoodie Women's Costume

$81.99

Sale - 20% Made By Us

Brown Bear Adult Jumpsuit Costume

$68.99$54.99-$68.99*

Made By Us Exclusive

Adult Pajama Penguin Costume

$54.99

Women's Glitter Ghost Poncho Costume

$27.99-$34.99

Super Mario Brothers Adult Mario Kigurumi Costume

$108.99

Adult Pokemon Lucario Kigurumi Costume

$136.99

Candy Corn Women's Poncho

$27.99

Sale - 25% Made By Us

Adult Skeleton Costume Poncho

$27.99$20.99

Voodoo Poncho Costume

$27.99

Made By Us Exclusive

Adult Vintage Halloween Cat Halloween Sweater

$54.99

Adult Skeleton Kigurumi

$88.99

Women's Plus Size Scarecrow Poncho

$40.99

Pokemon Jigglypuff Adult Kigurumi

$102.99

Made By Us Exclusive

Quirky Kitty Halloween Sweater for Adults

$54.99

Super Mario Brothers Bowser Kigurumi Costume for Adults

$122.99

Adult Beetlejuice Lydia Deetz Ugly Halloween Sweater 1

Sale - 20% Made By Us

Adult Beetlejuice Lydia Deetz Halloween Sweater

$68.99$54.99

Made By Us Exclusive

Sesame Street Oscar the Grouch Jumpsuit Costume for Adults

$108.99-$136.99

Sale - 28%

Women's Tattered Skeleton Poncho Costume

$34.99$24.99

Super Mario Brothers Adult Luigi Kigurumi Costume

Adult Super Mario Brothers Luigi Kigurumi Costume

$108.99

Sale - 80% Made By Us

Adult Spooky Smiles Halloween Sweater Dress

$68.99$13.99

Made By Us Exclusive

Adult Care Bear Grumpy Bear Onesie

$54.99

Adult Stay Puft Marshmallow Man Costume Onesie

Made By Us Exclusive

Stay Puft Marshmallow Man Adult Costume Onesie

$61.99

Made By Us Exclusive

Pumpkin Frenzy Unisex Halloween Sweater

$54.99

Sale - 25% Made By Us

Adult Ghoulish Ghosts Halloween Sweater

$54.99$40.99

Sale - 20%

Women's Red Glitter Web Costume Poncho

$34.99$27.99

Dark Jack-o-lantern Poncho for Women

$27.99

Adult Cinnamoroll Kigurumi

$108.99

Sale - 18%

Adult Hammerhead Shark Kigurumi

$99.99$81.99

Women's Pink Bouclé Costume Dress

$47.99

Sale - 43% Made By Us

Dinosaur Bones Button Up Adult Shirt

$47.99$27.99-$34.99

Can't decide what you want to be for Halloween? HalloweenCostumes.com has a huge variety of the best Halloween costumes for adults for you to choose from. Ranging in styles from our sexy Princess Leia slave costume to our men's deluxe Darth Vader as well as brand new adult costumes for 2022. We have unique and exclusive adult costumes at the best prices on the web. You'll find our adult costume selection to be a comprehensive list of classic looks combined with the latest trends. Whether scary, funny, or even sexy, we have adult costumes for everyone's style and taste. Celebrate the holiday with an iconic and fashionable adult costume idea and throw your own timeless masquerade party this season.