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
    Review Rating: 5.00
    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
    Online Only
  • Womens Moonlight Unicorn Costume Quick View
    $44.99
    Womens Moonlight Unicorn Costume
    Online Only
  • Child Unicorn Knee-High Socks Quick View
    $3.99
    Child Unicorn Knee-High Socks
    Review Rating: 5.00
  • Child Pastel Unicorn Tutu with Tail Quick View
    $9.99
    Child Pastel Unicorn Tutu with Tail
    Review Rating: 2.50
  • Unicorn Sleep Mask Quick View
    $4.99
    Unicorn Sleep Mask 7in x 4in Polyester Accessory
    Review Rating: 5.00
  • Furry Unicorn Headband Quick View
    $6.99
    Furry Unicorn Headband Fabric & Plastic Accessory
  • Unicorn Duffle Bag Quick View
    $9.99
    Unicorn Duffle Bag 10in x 16in Polyester Bag
    Review Rating: 3.00
  • Girls Unicorn Costume Accessory Kit Quick View
    $24.99
    Girls Unicorn Costume Accessory Kit
    Review Rating: 3.00
  • Long Pastel Wig with Side Bangs Quick View
    $16.99
    Long Pastel Wig with Side Bangs
    Review Rating: 5.00
    Online Only
  • Child Pink Unicorn Baseball Hat with Ponytail Quick View
    $9.99
    Child Pink Unicorn Baseball Hat with Ponytail 6in x 4in Cotton & Polyester Hat
  • Unicorn Hat Quick View
    $14.99
    Unicorn Hat 13 1/2in x 12 1/2in Foam & Plastic Hat
    In-Store Pickup Coming Soon
  • Dark Fantasy Wig Quick View
    $16.99
    Dark Fantasy Wig
    Online Only
  • Womens Majestic Unicorn Costume Accessory Kit Quick View
    $43.99
    Womens Majestic Unicorn Costume Accessory Kit
    Online Only
  • White Unicorn Horn Quick View
    $10.99
    White Unicorn Horn 3 1/2in x 7 1/2in Foam Accessory
    Review Rating: 5.00
    Online Only
  • Glitter Gold Unicorn Horn Quick View
    $9.99
    Glitter Gold Unicorn Horn 2 1/4in x 7in Foam Accessory
    Online Only
  • Child Silver Unicorn Baseball Hat Quick View
    $9.99
    Child Silver Unicorn Baseball Hat 6in x 4in Cotton & Polyester Hat
  • Child Glitter Unicorn Mask Quick View
    $5.99
    Child Glitter Unicorn Mask
    Review Rating: 5.00
    Online Only
  • Adult Majestic Unicorn Mask Quick View
    $24.99
    Adult Majestic Unicorn Mask 8in x 16in Latex Mask
    Online Only
  • Rainbow Unicorn Wig with Horn and Ears Quick View
    $16.99
    Rainbow Unicorn Wig with Horn and Ears
    Online Only
  • Oversized Unicorn Icon Mask Quick View
    $19.99
    Oversized Unicorn Icon Mask
    Review Rating: 4.00
    Online Only
  • Dog Unicorn Horn Quick View
    $9.99
    Dog Unicorn Horn
    Online Only
  • Unicorn Body Jewelry 49ct Quick View
    $5.99
    Unicorn Body Jewelry 49ct
    Online Only
  • Light-Up Unicorn Lumenhorn Quick View
    $12.99
    Light-Up Unicorn Lumenhorn
  • Gold Glitter Unicorn Horn Quick View
    $12.99
    Gold Glitter Unicorn Horn 2in x 6 3/4in Foam & Silicone Accessory
    Review Rating: 5.00
    Online Only
  • Unicorn Mask Quick View
    $19.99
    Unicorn Mask 14 1/2in x 18in Polyester Mask
    Online Only
  • Womens Unicorn Costume Accessory Kit Quick View
    $39.99
    Womens Unicorn Costume Accessory Kit
  • Pastel Pink Eyelashes Quick View
    $4.99
    Pastel Pink Eyelashes
    Review Rating: 1.00
  • Unicorn Hair Dye Kit 4pc Quick View
    $6.99
    Unicorn Hair Dye Kit 4pc
    Review Rating: 2.00
    Online Only
  • Child Unicorn Makeup Kit 6pc Quick View
    $16.99
    Child Unicorn Makeup Kit 6pc
    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.