Unicorn Costumes

You were born to be a unicorn, so release your inner magic with Halloween costume accessories that will make you leave a little sparkle wherever you go.

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  • Toddler Girls Rainbow Unicorn Costume Quick View
    $44.99
    Toddler Girls Rainbow Unicorn Costume
    Review Rating: 4.50
    Online Only
  • Girls Rainbow Unicorn Costume Quick View
    $44.99
    Girls Rainbow Unicorn Costume
    Review Rating: 4.50
  • Girls Zipster Unicorn One Piece Costume Quick View
    $29.99
    Girls Zipster Unicorn One Piece Costume
    Review Rating: 4.50
  • Baby Unicorn Costume Quick View
    $29.99
    Baby Unicorn Costume
    Review Rating: 4.50
  • Adult Unicorn Ride-On Costume Quick View
    $59.99
    Adult Unicorn Ride-On Costume
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  • Child Unicorn Ride-On Costume Quick View
    $34.99
    Child Unicorn Ride-On Costume
    Review Rating: 4.50
    Online Only
  • Girls Felicity Costume - Rainbow Kitty Unicorn Quick View
    $34.99
    Girls Felicity Costume - Rainbow Kitty Unicorn
    Review Rating: 3.50
  • Adult Inflatable Giant Unicorn Costume Quick View
    $59.99
    Adult Inflatable Giant Unicorn Costume
    Review Rating: 2.50
  • Girls Moonlight Unicorn Costume Quick View
    $39.99
    Girls Moonlight Unicorn Costume
    Review Rating: 4.50
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  • Womens Moonlight Unicorn Costume Quick View
    $44.99
    Womens Moonlight Unicorn Costume
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  • Unicorn Glasses Quick View
    $9.99
    Unicorn Glasses 7 1/4in x 6in Plastic Accessory
  • Girls Unicorn Costume Accessory Kit Quick View
    $24.99
    Girls Unicorn Costume Accessory Kit
    Review Rating: 3.00
  • Magical Unicorn Makeup Kit Quick View
    $12.99
    Magical Unicorn Makeup Kit
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  • Pastel Unicorn Tail Quick View
    $7.99
    Pastel Unicorn Tail
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  • Light-Up Unicorn Horn Quick View
    $12.99
    Light-Up Unicorn Horn
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  • Unicorn Body Jewelry 49ct Quick View
    $5.99
    Unicorn Body Jewelry 49ct
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  • Unicorn Duffle Bag Quick View
    $9.99
    Unicorn Duffle Bag 10in x 16in Polyester Bag
    Review Rating: 2.00
  • Long Pastel Wig with Side Bangs Quick View
    $16.99
    Long Pastel Wig with Side Bangs
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    Review Rating: 5.00
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  • Glitter Silver Unicorn Horn Quick View
    $9.99
    Glitter Silver Unicorn Horn
    Save 30% off! Add to cart to receive discount.
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  • Child Unicorn Makeup Kit 6pc Quick View
    $16.99
    Child Unicorn Makeup Kit 6pc
    Save 30% off! Add to cart to receive discount.
    Review Rating: 4.00
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  • Child Glitter Unicorn Mask Quick View
    $5.99
    Child Glitter Unicorn Mask
    Save 30% off! Add to cart to receive discount.
    Review Rating: 5.00
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  • Unicorn Hat Quick View
    $14.99
    Unicorn Hat 13 1/2in x 12 1/2in Foam & Plastic Hat
    Save 30% off! Add to cart to receive discount.
  • Unicorn Mask Quick View
    $19.99
    Unicorn Mask 14 1/2in x 18in Polyester Mask
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  • Glitter Rainbow Unicorn Horn Quick View
    $9.99
    Glitter Rainbow Unicorn Horn
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  • Adult Majestic Unicorn Mask Quick View
    $24.99
    Adult Majestic Unicorn Mask 8in x 16in Latex Mask
    Save 30% off! Add to cart to receive discount.
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  • Dog Unicorn Horn Quick View
    $9.99
    Dog Unicorn Horn
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  • Gold Glitter Unicorn Horn Quick View
    $12.99
    Gold Glitter Unicorn Horn 2in x 6 3/4in Foam & Silicone Accessory
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    Review Rating: 5.00
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  • Womens Unicorn Accessory Kit Quick View
    $29.99
    Womens Unicorn Accessory Kit
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  • White Unicorn Headband Quick View
    $14.99
    White Unicorn Headband 6in x 6 1/4in Fabric Accessory
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  • Pastel Pink Eyelashes Quick View
    $4.99
    Pastel Pink Eyelashes
    Review Rating: 1.00
  • Glitter Gold Unicorn Horn Quick View
    $9.99
    Glitter Gold Unicorn Horn 2 1/4in x 7in Foam Accessory
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  • Rainbow Unicorn Wig with Horn and Ears Quick View
    $16.99
    Rainbow Unicorn Wig with Horn and Ears
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  • Dark Fantasy Wig Quick View
    $16.99
    Dark Fantasy Wig
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  • Unicorn Accessory Kit Quick View
    $11.99
    Unicorn Accessory Kit Fabric & Plastic Accessories
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  • Womens Unicorn Heel Platform Sandals Quick View
    $74.99
    Womens Unicorn Heel Platform Sandals
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  • Oversized Unicorn Icon Mask Quick View
    $19.99
    Oversized Unicorn Icon Mask
    Review Rating: 4.00
    Online Only
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Discover delightful unicorn Halloween costumes and accessories

Ready to make an entrance that’s downright magical? If so, check out our selection of kids and adult unicorn costumes! Party City offers a range of costume types, ranging from simple onesies to fantastic (and funny) ride-on costumes featuring your favorite mythological creature. In addition to our selection of adult, toddler and girls unicorn costumes, you can also choose from accessories like horns, hats, headbands and socks and more to create your own unique look. No matter which unicorn costume you choose, you’re sure to bring some sparkle to your next costume party.