Adult Costumes

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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 726

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Thing 1 & Thing 2 Adult Costume

$47.99

Sale - 22%

Women's Groovy Go Go Dancer Costume

$50.99-$61.99$47.99-$68.99*

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Adult Thing 1 and Thing 2 Costume

$61.99

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Adults Horse Costume

$81.99

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Plus Size Adult Cat in the Hat Costume

$81.99

Sale - 13% Made By Us

Cat in the Hat Adult Costume

$54.99$47.99-$54.99*

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Adult Deluxe Lion Costume

$68.99-$75.99

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Women's Rainbow Brite Costume

$68.99

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Plus Size Thing 1&2 Costume

$68.99

Exclusive

Harry Potter Adult Deluxe Ravenclaw Robe

$54.99

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Adult Jockey Shirt Costume

$34.99-$40.99

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Green Eggs & Ham Sandwich Board Costume

$44.99

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Women's Piñata Dress Costume

$54.99

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Care Bears Adult Classic Good Luck Bear Costume

$68.99

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Women Dazzling Deer Costume

$54.99

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Adult Potted Flower Costume

$54.99-$61.99

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Adult's Inflatable Sun Costume

$54.99

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The Magic School Bus Miss Frizzle Costume

$54.99

Exclusive

Plus Size Women's Cinderella Fairy Godmother Costume

$102.99-$109.99

Rosas Day of the Dead Women's Costume

$122.99-$136.99

Plus Size League of Their Own Dottie Costume-update2

Sale - 14% Made By Us

Plus Size Women's League of Their Own Dottie Costume

$95.99$81.99-$95.99*

Women's Plus Size Oktoberfest Fraulein Costume

$75.99

Sale - 18% Made By Us

Women's Day of the Dead Mariachi Costume

$75.99$61.99

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Women's Grumpy Bear Romper Costume

$68.99

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Adult Black Cat Costume

$68.99

Kim Possible (Animated) Womens Shego Costume Update

Sale - 18% Exclusive

Kim Possible Animated Series Women's Shego Costume

$75.99$61.99-$75.99*

Sale - 13% Exclusive

Harry Potter Adult Deluxe Hufflepuff Robe

$54.99$47.99-$54.99*

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Adults Magic School Bus Liz Costume

$81.99-$95.99

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Adult's Fairytale Tink Costume

$81.99

Renaissance Lady Costume

$61.99

Thing 1 & Thing 2 Adult Halloween Costume

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Plus Size Thing 1 & Thing 2 Halloween Costume

$54.99

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Women's Deluxe Ms. Frizzle Costume

$81.99-$122.99

Sale - 11% Made By Us

Wonder Woman Dark Blue Ugly Christmas Sweater

$61.99$54.99-$61.99*

Sale - 36% Exclusive

Catwoman Deluxe Adult Costume

$75.99$47.99-$54.99

Sale - 13% Made By Us

Dragon Queen Women's Costume Winter

$109.99$95.99-$109.99*

Sexy Swashbuckler Captain Costume

$68.99-$88.99

Sale - 22% Made By Us

Women's Plus Size Fringe Hippie Costume

$61.99$47.99-$61.99*

Exclusive

Women's Plus Size Psycho Jester Costume

$61.99

Women's Oktoberfest Fraulein Costume

$68.99

Clearance Made By Us

Women's Dreamscape Dragon Costume

$122.99$27.99

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Women's Flower Child Costume

$75.99

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Women's Xena Warrior Princess Costume

$68.99-$122.99

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Deluxe Plus Size Ms. Frizzle Costume

$95.99

Made By Us Exclusive

Women's Mother Nature Costume

$81.99

The Princess Bride Authentic Buttercup Adult Costume-0

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The Princess Bride Buttercup Adult Costume

$122.99

Clearance Made By Us

Free Spirit Hippie Women's Costume

$40.99$8.99

Kansas Girl Plus Size Costume Main Update

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Plus Size Kansas Girl Women's Costume Dress

$54.99

Women's Skeleton Beauty Plus Size Costume

Made By Us Exclusive

Plus Size Skeleton Beauty Women's Costume

$95.99

Adult Green Bush Costume

$68.99

Made By Us Exclusive

Deluxe Red Riding Hood Costume

$81.99

Plus Size Women's Voodoo Skeleton Costume

Made By Us Exclusive

Plus Size Voodoo Skeleton Costume for Women

$95.99

Made By Us Exclusive

Adult Pumpkin Costume Jumpsuit

$54.99

Made By Us Exclusive

The Magic School Bus Miss Frizzle Plus Size Costume

$68.99

Sale - 10% Made By Us

Olaf Frozen Plus Size Costume for Adults

$136.99$122.99-$136.99*

Sale - 20%

Women's Blue Downtown Doll Costume

$61.99-$68.99$54.99-$68.99*

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Women's Spellbinding Sweetie Costume

$54.99

Made By Us Exclusive

Women's French Feather Duster Costume

$75.99

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Plus Size Deluxe Pink Witch Dress Costume

$95.99

Sale - 43% Made By Us

Fringe Gold Flapper Costume

$47.99$27.99-$34.99

Sale - 13% Made By Us

Women's Elegant Eagle Costume

$109.99$95.99

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.