Adult Halloween Costumes

Choose from our large assortment of adult Halloween costumes for your holiday party or Halloween night.

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  • Now $23.99 Was:$39.99
    Adult Zipster Rainbow Unicorn One Piece Costume
    Online Only Sale – Limited Time!
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  • $12.99
    Flamingo Headband 6in x 9 1/2in Accessory
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    Review Rating: 4.00
    Online Only
  • $59.99
    Adult Inflatable Giant Unicorn Costume
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    Review Rating: 3.00
  • $59.99
    Adult Inflatable Standing Unicorn Costume
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  • $7.99
    Pastel Unicorn Tail
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    Online Only
  • $16.99
    Long Pastel Wig with Side Bangs
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    Review Rating: 5.00
  • Now $5.99 Was:$9.99
    Glitter Silver Unicorn Horn
    Online Only Sale – Limited Time!
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    Online Only
  • Now $11.99 Was:$15.00
    Unicorn Hat 13 1/2in x 12 1/2in Foam & Plastic Hat
    Online Only Sale – Limited Time!
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  • Now $5.00 Was:$6.99
    Unicorn Hair Dye Kit 4pc
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    Review Rating: 2.00
  • $24.99
    Adult Pastel Wig
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  • Now $14.99 Was:$24.99
    Plush Flamingo Hat 16 1/2in x 20in Polyester Hat
    Online Only Sale – Limited Time!
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  • Now $11.99 Was:$20.00
    Unicorn Mask 14 1/2in x 18in Polyester Mask
    Online Only Sale – Limited Time!
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    Online Only
  • Now $8.99 Was:$14.99
    White Unicorn Headband 6in x 6 1/4in Fabric Accessory
    Online Only Sale – Limited Time!
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  • Now $5.99 Was:$9.99
    Glitter Rainbow Unicorn Horn
    Online Only Sale – Limited Time!
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    Online Only
  • $45.99
    Womens Majestic Unicorn Costume Accessory Kit
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    Online Only
  • $12.99
    Light-Up Unicorn Lumenhorn
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  • $44.99
    Womens Moonlight Unicorn Costume
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    Online Only
  • $12.99
    Light-Up Unicorn Horn
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    Online Only
  • $42.99
    Womens Unicorn Costume Accessory Kit
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  • $11.99
    Unicorn Accessory Kit Fabric & Plastic Accessories
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  • $19.99
    Pastel Wig
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    Review Rating: 4.00
  • $4.99
    Pastel Pink Eyelashes
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    Review Rating: 1.00
  • $19.99
    Oversized Unicorn Icon Mask
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    Review Rating: 4.50
  • $59.99
    Adult Unicorn Ride-On Costume
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    Review Rating: 5.00
    Online Only
  • $16.99
    Womens Iridescent Dress
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    Review Rating: 3.00
    Online Only
  • $29.99
    Womens Iridescent Bodysuit
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    Review Rating: 3.00
    Online Only
  • Now $7.99 Was:$12.99
    Mystical Unicorn Accessory Kit
    Online Only Sale – Limited Time!
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    Review Rating: 4.50
  • Now $7.99 Was:$12.99
    Gold Glitter Unicorn Horn 2in x 6 3/4in Foam & Silicone Accessory
    Online Only Sale – Limited Time!
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    Review Rating: 5.00
  • Now $5.99 Was:$9.99
    Glitter Gold Unicorn Horn 2 1/4in x 7in Foam Accessory
    Online Only Sale – Limited Time!
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    Online Only
  • Now $5.99 Was:$9.99
    Light-Up Unicorn Horn Headband 5in x 10 1/2in Metal & Plastic Accessory
    Online Only Sale – Limited Time!
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    Review Rating: 1.00
  • Now $14.99 Was:$24.99
    Adult Majestic Unicorn Mask 8in x 16in Latex Mask
    Online Only Sale – Limited Time!
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    Online Only
  • Now $8.99 Was:$14.99
    Unicorn Makeup Kit
    Online Only Sale – Limited Time!
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  • Now $17.99 Was:$29.99
    Womens Unicorn Accessory Kit
    Online Only Sale – Limited Time!
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  • Now $9.99 Was:$16.99
    Rainbow Unicorn Wig with Horn and Ears
    Online Only Sale – Limited Time!
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  • Now $44.99 Was:$74.99
    Womens Unicorn Heel Platform Sandals
    Online Only Sale – Limited Time!
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    Online Only
  • $24.99
    Adult Unicorn Mask
    Out Of Stock Online
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Get an Easy Halloween Costume for Adults from Party City

Why should kids have all the fun? Adults need costumes too, so shop the latest and greatest adult Halloween costumes for men and women at Party City! We’re your Halloween super store with everything you need to celebrate the holiday.

Our extensive selection of costumes for adults includes a wide range of themes, styles and sizes for all body types, including plus-size costumes. We carry adult costumes from your favorite TV shows, movies and video games, as well as classic – and easy – Halloween costumes for adults of all shapes and sizes. More about humor than horror? Be sure to check out our collection of funny adult Halloween costumes so you can be the talk of the party!

While we have plenty of ready-made outfits, sometimes the best Halloween costumes for adults are of the DIY variety. If that’s the case for you, don’t worry - we’ve got you covered there, too. We make it easy to complete adult costumes thanks to our selection of individual items from our curated selection of masks, tops, bottoms, shoes and more to create your own unique look. And remember – the holidays are always more fun with those you love, which is why we carry a huge selection of adult Halloween costumes for couples and groups. No matter what you choose, it’s sure to delight family, friends and neighbors. Ready to find the best Halloween costumes for adults like you? Check out our online selection or visit your local store to get started.