Unicorn Costumes

Release your inner magic with unicorn costumes and accessories that'll leave a sparkle wherever you go, whether it be parties, dress up, or Halloween.

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In stock at my store 20176 Edit Store
38 Results
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  • Baby Unicorn Costume
    Review Rating: 4.50
    $29.99
    Coming Soon
    Online: null
    In Stores: null
    Size 0-6M Out of stock at Leesburg Plaza Edit Store
    Size 0-6M out of stock online
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    0 Only in stock
  • Kids' Mystical Unicorn Costume
    Review Rating: 5.00
    $29.99
    Coming Soon
    Online: null
    In Stores: null
    Online Only
    Free standard shipping with $49 orders.
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    13 Only in stock
  • Child Zombie Rainbow Unicorn Costume Halloween City Exclusive
    Review Rating: 4.50
    $34.99
    Coming Soon
    Online: null
    In Stores: null
    In stock at Leesburg Plaza
    Free standard shipping with $49 orders.
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    1 Only in stock
  • Girls Zipster Unicorn One Piece Costume
    Review Rating: 5.00
    Now $18.74 Was $24.99
    Coming Soon
    Online: null
    In Stores: null
    Size S Out of stock at Leesburg Plaza Edit Store
    Free standard shipping with $49 orders.
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    0 Only in stock
  • Child Rainbow Brightstar Costume - Poopsie Slime Surprise Unicorn
    Now $16.49 Was $21.99
    Coming Soon
    Online: null
    In Stores: null
    Online Only
    Free standard shipping with $49 orders.
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    510 Only in stock
  • Girls Felicity Costume - Rainbow Kitty Unicorn
    Review Rating: 3.50
    $29.99
    Coming Soon
    Online: null
    In Stores: null
    Size M Out of stock at Leesburg Plaza Edit Store
    Free standard shipping with $49 orders.
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    0 Only in stock
  • Child Lovely Lady Unicorn Costume
    Review Rating: 4.00
    Now $44.99 Was $59.99
    Coming Soon
    Online: null
    In Stores: null
    Online Only
    Free standard shipping with $49 orders.
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    369 Only in stock
  • Girls Rainbow Unicorn Costume
    Review Rating: 4.50
    Now $22.49 Was $29.99
    Coming Soon
    Online: null
    In Stores: null
    Size S Out of stock at Leesburg Plaza Edit Store
    Size S out of stock online
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    0 Only in stock
  • Baby Pastel Unicorn Costume
    Now $29.99 Was $39.99
    Coming Soon
    Online: null
    In Stores: null
    Online Only
    Free standard shipping with $49 orders.
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    230 Only in stock
  • Baby Pastel Unicorn Costume
    Review Rating: 4.00
    Now $25.49 Was $33.99
    Coming Soon
    Online: null
    In Stores: null
    Online Only
    Free standard shipping with $49 orders.
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    269 Only in stock
  • Adult Inflatable Standing Unicorn Costume
    Review Rating: 2.00
    $38.99
    Coming Soon
    Online: null
    In Stores: null
    Size Standard Size Out of stock at Leesburg Plaza Edit Store
    Free standard shipping with $49 orders.
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    0 Only in stock
  • Unicorn Dog Costume
    Review Rating: 2.00
    Now $11.24 Was $14.99
    Coming Soon
    Online: null
    In Stores: null
    Size XS/SM Out of stock at Leesburg Plaza Edit Store
    Size XS/SM out of stock online
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    0 Only in stock
  • Child Zipster Pastel Unicorn One Piece Costume
    $39.99
    Coming Soon
    Online: null
    In Stores: null
    Online Only
    Free standard shipping with $49 orders.
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    181 Only in stock
  • Child Unicorn Ride-On Costume
    Review Rating: 4.50
    $34.99
    Coming Soon
    Online: null
    In Stores: null
    Size Standard Size Out of stock at Leesburg Plaza Edit Store
    Size Standard Size out of stock online
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    0 Only in stock
  • Adult Unicorn Zipster Costume
    Review Rating: 5.00
    Now $22.49 Was $29.99
    Coming Soon
    Online: null
    In Stores: null
    Size S/M Out of stock at Leesburg Plaza Edit Store
    Free standard shipping with $49 orders.
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    0 Only in stock
  • Child Zipster Pink Unicorn One Piece Costume
    $39.99
    Coming Soon
    Online: null
    In Stores: null
    Online Only
    Free standard shipping with $49 orders.
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    75 Only in stock
  • Toddler Girls Rainbow Unicorn Costume
    Review Rating: 4.50
    Now $22.49 Was $29.99
    Coming Soon
    Online: null
    In Stores: null
    Size 3-4T Out of stock at Leesburg Plaza Edit Store
    Free standard shipping with $49 orders.
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    0 Only in stock
  • Pastel Unicorn Tail
    Review Rating: 3.50
    Now $4.49 Was $5.99
    Coming Soon
    Online: null
    In Stores: null
    In stock at Leesburg Plaza
    Out of stock online
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    1 Only in stock
  • Rainbow Unicorn Headband 6 1/2in x 8in Metal Accessory
    $6.00
    Coming Soon
    Online: null
    In Stores: null
    Out of stock at Leesburg Plaza Edit Store
    Out of stock online
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    0 Only in stock
  • Glitter Silver Unicorn Horn
    Review Rating: 5.00
    Now $7.49 Was $9.99
    Coming Soon
    Online: null
    In Stores: null
    In stock at Leesburg Plaza
    Free standard shipping with $49 orders.
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    1 Only in stock
  • Glitter Rainbow Unicorn Horn
    Now $7.49 Was $9.99
    Coming Soon
    Online: null
    In Stores: null
    Out of stock at Leesburg Plaza Edit Store
    Free standard shipping with $49 orders.
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    0 Only in stock
  • Glitter Gold Unicorn Horn 2 1/4in x 7in Foam Accessory
    $9.99
    Coming Soon
    Online: null
    In Stores: null
    Out of stock at Leesburg Plaza Edit Store
    Free standard shipping with $49 orders.
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    0 Only in stock
  • Magical Unicorn Makeup Kit
    Review Rating: 3.50
    $9.99
    Coming Soon
    Online: null
    In Stores: null
    Out of stock at Leesburg Plaza Edit Store
    Out of stock online
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    0 Only in stock
  • Child Glitter Unicorn Mask
    Review Rating: 5.00
    Now $4.49 Was $5.99
    Coming Soon
    Online: null
    In Stores: null
    Out of stock at Leesburg Plaza Edit Store
    Free standard shipping with $49 orders.
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    0 Only in stock
  • Light-Up Unicorn Horn
    Review Rating: 5.00
    $10.00
    Coming Soon
    Online: null
    In Stores: null
    Out of stock at Leesburg Plaza Edit Store
    Free standard shipping with $49 orders.
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    0 Only in stock
  • Unicorn Body Jewelry 49ct
    $4.99
    Coming Soon
    Online: null
    In Stores: null
    Out of stock at Leesburg Plaza Edit Store
    Out of stock online
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    0 Only in stock
  • Unicorn Hat 13 1/2in x 12 1/2in Foam & Plastic Hat
    Review Rating: 5.00
    Now $11.25 Was $15.00
    Coming Soon
    Online: null
    In Stores: null
    Out of stock at Leesburg Plaza Edit Store
    Free standard shipping with $49 orders.
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    0 Only in stock
  • Child Unicorn Makeup Kit 6pc
    Review Rating: 3.50
    $9.99
    Coming Soon
    Online: null
    In Stores: null
    Out of stock at Leesburg Plaza Edit Store
    Free standard shipping with $49 orders.
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    0 Only in stock
  • Winged Sparkle Unicorn Costume for Dogs
    $20.00
    Coming Soon
    Online: null
    In Stores: null
    Size XS/S Out of stock at Leesburg Plaza Edit Store
    Free standard shipping with $49 orders.
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    0 Only in stock
  • Mystical Unicorn Accessory Kit
    Review Rating: 4.50
    $12.99
    Coming Soon
    Online: null
    In Stores: null
    In stock at Leesburg Plaza
    Free standard shipping with $49 orders.
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    3 Only in stock
  • Child Once Upon A Tutu Unicorn Costume Accessory Kit
    Now $18.74 Was $24.99
    Coming Soon
    Online: null
    In Stores: null
    size S Out of stock at Leesburg Plaza Edit Store
    Free standard shipping with $49 orders.
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    0 Only in stock
  • Womens Unicorn Heel Platform Sandals
    $74.99
    Coming Soon
    Online: null
    In Stores: null
    Online Only
    Free standard shipping with $49 orders.
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    46 Only in stock
  • Unicorn Mask 14 1/2in x 18in Polyester Mask
    Review Rating: 4.50
    $20.00
    Coming Soon
    Online: null
    In Stores: null
    Out of stock at Leesburg Plaza Edit Store
    Free standard shipping with $49 orders.
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    0 Only in stock
  • White Unicorn Headband 6in x 6 1/4in Fabric Accessory
    $14.99
    Coming Soon
    Online: null
    In Stores: null
    Out of stock at Leesburg Plaza Edit Store
    Free standard shipping with $49 orders.
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    0 Only in stock
  • Adult Light-Up Iridescent Unicorn Costume Accessory Kit
    Review Rating: 2.00
    $19.99
    Coming Soon
    Online: null
    In Stores: null
    Online Only
    Free standard shipping with $49 orders.
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    75 Only in stock
  • Kawaii Unicorn Hat 9in x 16in Polyester Hat
    $19.99
    Coming Soon
    Online: null
    In Stores: null
    Online Only
    Free standard shipping with $49 orders.
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    80 Only in stock
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Next

Discover Delightful Unicorn Halloween Costumes And Accessories

Ready to make an entrance that’s downright magical? If so, check out our selection of unicorn costumes for kids and adults! Party City offers a range of costume types, ranging from simple unicorn 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 fun accessories like unicorn 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.

Unicorn Costumes For Babies And Toddlers

Little ones love the magic that unicorns can bring. That’s why our collection of unicorn outfits includes plenty of looks for babies and toddlers alike. Made from soft material to ensure comfort during trick or treat, these unicorn Halloween costumes are adorable, beautiful, and most of all fun. Choose from plush onesies for babies, or opt for a unicorn dress your toddler is sure to love. No matter what you choose, your child will delight in being their favorite mythical creature during Halloween, playtime and more.

Kids’ And Teens Unicorn Costumes

Plenty of kids, tweens and teens love the beauty, grace and magic of unicorns, so we made sure to supply costumes just for them. Our kids’ unicorn costumes come in a range of styles from simple hoodies to girls’ unicorn costumes featuring skirts, tights and accessories. We even offer a range of wearables so your child can create their own DIY unicorn costume. After all, every unicorn is supposed to be unique!

Adult Unicorn Costumes

Who says you have to let the magic go? Plenty of adults enjoy the fanciful beauty of unicorns, so Party City made it easy to find adult unicorn costumes for everyone. Select a woman’s unicorn costume or dress and transform into an elegant creature of the forest. Slip into an adult-sized unicorn jumpsuit – it’s a fun, comfortable outfit that’s perfect for trick or treat, parties and more. No matter what you choose, you’re sure to be the highlight of the party!

Ready to find your favorite unicorn costume? Browse and buy online or visit your nearest Party City store today!