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
    $41.99
    Toddler Girls Rainbow Unicorn Costume
    Review Rating: 4.00
  • Girls Rainbow Unicorn Costume Quick View
    $41.99
    Girls Rainbow Unicorn Costume
    Review Rating: 4.50
  • Girls Zipster Unicorn One Piece Costume Quick View
    $24.99
    Girls Zipster Unicorn One Piece Costume
    Review Rating: 4.50
  • Baby Unicorn Costume Quick View
    $29.99
    Baby Unicorn Costume
  • Adult Unicorn Ride-On Costume Quick View
    $59.99
    Adult Unicorn Ride-On Costume
    Online Only
  • Child Unicorn Ride-On Costume Quick View
    $34.99
    Child Unicorn Ride-On Costume
    Review Rating: 4.50
    Online Only
  • Girls Felicity Costume - Rainbow Butterfly Unicorn Kitty Quick View
    $29.99
    Girls Felicity Costume - Rainbow Butterfly Unicorn Kitty
    In-Store Pickup Coming Soon
  • Adult Inflatable Giant Unicorn Costume Quick View
    $59.99
    Adult Inflatable Giant Unicorn Costume
  • Girls Moonlight Unicorn Costume Quick View
    $39.99
    Girls Moonlight Unicorn Costume
    Online Only
  • Womens Moonlight Unicorn Costume Quick View
    $44.99
    Womens Moonlight Unicorn Costume
    Online Only
  • Girls It's So Fluffy Unicorn Costume - Despicable Me Quick View
    Now $19.99 Was:$29.99
    Girls It's So Fluffy Unicorn Costume - Despicable Me
    Online Only
  • Child Unicorn Knee-High Socks Quick View
    $3.99
    Child Unicorn Knee-High Socks
  • Child Pastel Unicorn Tutu with Tail Quick View
    $9.99
    Child Pastel Unicorn Tutu with Tail
    Review Rating: 1.00
  • Furry Unicorn Headband Quick View
    $6.99
    Furry Unicorn Headband Fabric & Plastic Accessory
  • Unicorn Sleep Mask Quick View
    $4.99
    Unicorn Sleep Mask 7in x 4in Polyester Accessory
  • Unicorn Duffle Bag Quick View
    $9.99
    Unicorn Duffle Bag 10in x 16in Polyester Bag
  • Child Unicorn Makeup Kit 6pc Quick View
    $14.99
    Child Unicorn Makeup Kit 6pc
  • Girls Unicorn Costume Accessory Kit Quick View
    $22.99
    Girls Unicorn Costume Accessory Kit
  • Unicorn Dog Costume Quick View
    $16.99
    Unicorn Dog Costume
  • Dog Unicorn Horn Quick View
    $9.99
    Dog Unicorn Horn
  • Light-Up Unicorn Horn Quick View
    $9.99
    Light-Up Unicorn Horn
    In-Store Pickup Coming Soon
  • Unicorn Hat Quick View
    $12.99
    Unicorn Hat 13 1/2in x 12 1/2in Foam & Plastic Hat
    In-Store Pickup Coming Soon
  • Glitter Gold Unicorn Horn Quick View
    $7.99
    Glitter Gold Unicorn Horn 2 1/4in x 7in Foam Accessory
  • Glitter Rainbow Unicorn Horn Quick View
    $7.99
    Glitter Rainbow Unicorn Horn
  • Unicorn Glasses Quick View
    $9.99
    Unicorn Glasses 7 1/4in x 6in Plastic Accessory
  • Child Silver Unicorn Baseball Hat Quick View
    $9.99
    Child Silver Unicorn Baseball Hat 6in x 4in Cotton & Polyester Hat
  • Mystical Unicorn Accessory Kit Quick View
    $16.99
    Mystical Unicorn Accessory Kit
    Review Rating: 4.50
  • White Unicorn Headband Quick View
    $14.99
    White Unicorn Headband 6in x 6 1/4in Fabric Accessory
    In-Store Pickup Coming Soon
  • Child Glitter Unicorn Mask Quick View
    $5.99
    Child Glitter Unicorn Mask
    Review Rating: 5.00
  • Glitter Silver Unicorn Horn Quick View
    $7.99
    Glitter Silver Unicorn Horn
  • Light-Up Unicorn Horn Headband Quick View
    $9.99
    Light-Up Unicorn Horn Headband 5in x 10 1/2in Metal & Plastic Accessory
  • White Unicorn Horn Quick View
    $10.99
    White Unicorn Horn 3 1/2in x 7 1/2in Foam Accessory
    Online Only
  • Womens Unicorn Heel Platform Sandals Quick View
    $74.99
    Womens Unicorn Heel Platform Sandals
    Online Only
  • Adult Unicorn Mask Quick View
    $24.99
    Adult Unicorn Mask
    In-Store Pickup Coming Soon
  • Oversized Unicorn Icon Mask Quick View
    Now $16.00 Was:$19.99
    Oversized Unicorn Icon Mask
  • Unicorn Hair Dye Kit 3pc Quick View
    $6.99
    Unicorn Hair Dye Kit 3pc
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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.