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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  • $29.99
    Girls Rainbow Unicorn Costume
    Review Rating: 4.50
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  • $24.99
    Baby Unicorn Costume
    Review Rating: 4.50
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  • $22.99
    Girls Zipster Unicorn One Piece Costume
    Review Rating: 4.50
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  • $34.99
    Girls Felicity Costume - Rainbow Kitty Unicorn
    Review Rating: 3.50
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  • $24.99
    Child Iridescent Rainbow Unicorn Costume
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  • $39.99
    Girls Moonlight Unicorn Costume
    Review Rating: 5.00
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    Online Only
    Online Only
  • $59.99
    Child Lovely Lady Unicorn Costume
    Review Rating: 5.00
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    Online Only
    Online Only
  • $29.99
    Toddler Girls Rainbow Unicorn Costume
    Review Rating: 4.50
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    Online Only
    Online Only
  • $49.99
    Adult Inflatable Standing Unicorn Costume
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  • $34.99
    Child Unicorn Ride-On Costume
    Review Rating: 4.50
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  • $39.99
    Adult Zipster Rainbow Unicorn One Piece Costume
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    Online Only
    Online Only
  • $29.99
    Adult Unicorn Zipster Costume
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  • $21.99
    Child Rainbow Brightstar Costume - Poopsie Slime Surprise Unicorn
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    Online Only
    Online Only
  • $33.99
    Baby Pastel Unicorn Costume
    Review Rating: 3.50
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    Online Only
    Online Only
  • $44.99
    Womens Moonlight Unicorn Costume
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    Online Only
    Online Only
  • $39.99
    Child Zipster Rainbow Unicorn One Piece Costume
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    Online Only
    Online Only
  • $39.99
    Child Zipster Purple Unicorn One Piece Costume
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    Online Only
    Online Only
  • $39.99
    Child Zipster Pink Unicorn One Piece Costume
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    Online Only
    Online Only
  • $39.99
    Child Zipster Pastel Unicorn One Piece Costume
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    Online Only
    Online Only
  • $39.99
    Baby Pastel Unicorn Costume
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    Online Only
    Online Only
  • $59.99
    Adult Inflatable Giant Unicorn Costume
    Review Rating: 3.00
    Size Standard Size is Currently Out of Stock
  • $14.99
    Magical Unicorn Makeup Kit
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  • $7.99
    Pastel Unicorn Tail
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  • Now $18.74 Was:$24.99
    Girls Unicorn Costume Accessory Kit
    Review Rating: 3.00
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  • $16.99
    Unicorn Dog Costume
    Review Rating: 2.50
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  • $19.99
    Adult Floral Unicorn Costume Accessory Kit
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    Online Only
    Online Only
  • $5.99
    Unicorn Body Jewelry 49ct
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  • $9.99
    Glitter Silver Unicorn Horn
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  • $20.00
    Unicorn Mask 14 1/2in x 18in Polyester Mask
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  • $5.99
    Child Glitter Unicorn Mask
    Review Rating: 5.00
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  • $14.99
    Baby Unicorn Costume Accessory Kit
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    Online Only
    Online Only
  • Now $5.00 Was:$6.99
    Unicorn Hair Dye Kit 4pc
    Review Rating: 2.00
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  • $12.99
    Light-Up Unicorn Horn
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  • $16.99
    Dark Fantasy Wig
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  • $9.99
    Dog Unicorn Horn
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  • $24.99
    Child Once Upon A Tutu Unicorn Costume Accessory Kit
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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.