Unicorn Costumes

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

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In stock at my store 20164 Edit Store
43 Results
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  • Child Zombie Rainbow Unicorn Costume
    Review Rating: 4.50
    $34.99
    Coming Soon
    Online: null
    In Stores: null
    Size S Out of stock at Sugarland Plaza Shopping Center Edit Store
    Free standard shipping with $39 orders.
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    135 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 Sugarland Plaza Shopping Center Edit Store
    Free standard shipping with $39 orders.
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    128 Only in stock
  • Child Lovely Lady Unicorn Costume
    Review Rating: 4.00
    $59.99
    Coming Soon
    Online: null
    In Stores: null
    Online Only
    Free standard shipping with $39 orders.
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    426 Only in stock
  • Child Rainbow Brightstar Costume - Poopsie Slime Surprise Unicorn
    $21.99
    Coming Soon
    Online: null
    In Stores: null
    Online Only
    Free standard shipping with $39 orders.
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    562 Only in stock
  • Baby Pastel Unicorn Costume
    Review Rating: 4.00
    Now $21.94 Was $33.99
    Coming Soon
    Online: null
    In Stores: null
    Online Only
    Free standard shipping with $39 orders.
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    304 Only in stock
  • Baby Pastel Unicorn Costume
    Now $21.94 Was $39.99
    Coming Soon
    Online: null
    In Stores: null
    Online Only
    Free standard shipping with $39 orders.
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    262 Only in stock
  • Child Iridescent Rainbow Unicorn Costume
    Review Rating: 4.50
    $24.99
    Coming Soon
    Online: null
    In Stores: null
    In stock at Sugarland Plaza Shopping Center
    Free standard shipping with $39 orders.
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    9 Only in stock
  • Adult Unicorn Zipster Costume
    Review Rating: 5.00
    $29.99
    Coming Soon
    Online: null
    In Stores: null
    Size S/M Out of stock at Sugarland Plaza Shopping Center Edit Store
    Free standard shipping with $39 orders.
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    192 Only in stock
  • Girls Zipster Unicorn One Piece Costume
    Review Rating: 5.00
    $24.99
    Coming Soon
    Online: null
    In Stores: null
    Size S Out of stock at Sugarland Plaza Shopping Center Edit Store
    Size S out of stock online
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    0 Only in stock
  • Girls Rainbow Unicorn Costume
    Review Rating: 4.50
    $29.99
    Coming Soon
    Online: null
    In Stores: null
    Size S Out of stock at Sugarland Plaza Shopping Center Edit Store
    Free standard shipping with $39 orders.
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    215 Only in stock
  • Child Zipster Pastel Unicorn One Piece Costume
    Now $20.05 Was $39.99
    Coming Soon
    Online: null
    In Stores: null
    Online Only
    Free standard shipping with $39 orders.
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    197 Only in stock
  • Child Zipster Pink Unicorn One Piece Costume
    Now $20.05 Was $39.99
    Coming Soon
    Online: null
    In Stores: null
    Online Only
    Free standard shipping with $39 orders.
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    90 Only in stock
  • Baby Unicorn Costume
    Review Rating: 4.50
    $29.99
    Coming Soon
    Online: null
    In Stores: null
    Size 0-6M Out of stock at Sugarland Plaza Shopping Center Edit Store
    Free standard shipping with $39 orders.
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    270 Only in stock
  • Girls Felicity Costume - Rainbow Kitty Unicorn
    Review Rating: 3.50
    $29.99
    Coming Soon
    Online: null
    In Stores: null
    Size S Out of stock at Sugarland Plaza Shopping Center Edit Store
    Free standard shipping with $39 orders.
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    9 Only in stock
  • Unicorn Dog Costume
    Review Rating: 2.00
    $14.99
    Coming Soon
    Online: null
    In Stores: null
    Size XS/SM Out of stock at Sugarland Plaza Shopping Center Edit Store
    Size XS/SM out of stock online
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    0 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 Sugarland Plaza Shopping Center Edit Store
    Free standard shipping with $39 orders.
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    439 Only in stock
  • Toddler Girls Rainbow Unicorn Costume
    Review Rating: 4.50
    $29.99
    Coming Soon
    Online: null
    In Stores: null
    Size 3-4T Out of stock at Sugarland Plaza Shopping Center Edit Store
    Free standard shipping with $39 orders.
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    423 Only in stock
  • Child Once Upon A Tutu Unicorn Costume Accessory Kit
    $24.99
    Coming Soon
    Online: null
    In Stores: null
    size S Out of stock at Sugarland Plaza Shopping Center Edit Store
    Free standard shipping with $39 orders.
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    246 Only in stock
  • Pastel Unicorn Tail
    Review Rating: 5.00
    $5.99
    Coming Soon
    Online: null
    In Stores: null
    Out of stock at Sugarland Plaza Shopping Center Edit Store
    Free standard shipping with $39 orders.
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    12 Only in stock
  • Child Unicorn Poncho
    Now $10.40 Was $19.99
    Coming Soon
    Online: null
    In Stores: null
    Online Only
    Free standard shipping with $39 orders.
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    4 Only in stock
  • Light-Up Unicorn Horn
    Review Rating: 5.00
    $9.99
    Coming Soon
    Online: null
    In Stores: null
    Out of stock at Sugarland Plaza Shopping Center Edit Store
    Out of stock online
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    0 Only in stock
  • Rainbow Unicorn Headband 6 1/2in x 8in Metal Accessory
    $5.00
    Coming Soon
    Online: null
    In Stores: null
    Out of stock at Sugarland Plaza Shopping Center Edit Store
    Out of stock online
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    0 Only in stock
  • Adult Light-Up Iridescent Unicorn Costume Accessory Kit
    Review Rating: 2.00
    Now $10.00 Was $19.99
    Coming Soon
    Online: null
    In Stores: null
    Online Only
    Free standard shipping with $39 orders.
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    86 Only in stock
  • Adult Floral Unicorn Costume Accessory Kit
    $19.99
    Coming Soon
    Online: null
    In Stores: null
    Online Only
    Free standard shipping with $39 orders.
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    2 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 Sugarland Plaza Shopping Center Edit Store
    Free standard shipping with $39 orders.
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    117 Only in stock
  • Magical Unicorn Makeup Kit
    Review Rating: 3.50
    $9.99
    Coming Soon
    Online: null
    In Stores: null
    Out of stock at Sugarland Plaza Shopping Center Edit Store
    Free standard shipping with $39 orders.
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    26 Only in stock
  • Glitter Silver Unicorn Horn
    Review Rating: 5.00
    $9.99
    Coming Soon
    Online: null
    In Stores: null
    Out of stock at Sugarland Plaza Shopping Center Edit Store
    Free standard shipping with $39 orders.
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    370 Only in stock
  • Glitter Rainbow Unicorn Horn
    $9.99
    Coming Soon
    Online: null
    In Stores: null
    Out of stock at Sugarland Plaza Shopping Center Edit Store
    Free standard shipping with $39 orders.
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    656 Only in stock
  • Child Glitter Unicorn Mask
    Review Rating: 5.00
    $5.99
    Coming Soon
    Online: null
    In Stores: null
    Out of stock at Sugarland Plaza Shopping Center Edit Store
    Free standard shipping with $39 orders.
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    149 Only in stock
  • Glitter Gold Unicorn Horn 2 1/4in x 7in Foam Accessory
    $9.99
    Coming Soon
    Online: null
    In Stores: null
    In stock at Sugarland Plaza Shopping Center
    Free standard shipping with $39 orders.
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    214 Only in stock
  • Unicorn Hat 13 1/2in x 12 1/2in Foam & Plastic Hat
    Review Rating: 5.00
    $15.00
    Coming Soon
    Online: null
    In Stores: null
    Out of stock at Sugarland Plaza Shopping Center Edit Store
    Free standard shipping with $39 orders.
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    564 Only in stock
  • Womens Unicorn Heel Platform Sandals
    Now $37.50 Was $74.99
    Coming Soon
    Online: null
    In Stores: null
    Online Only
    Free standard shipping with $39 orders.
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    48 Only in stock
  • Light-Up Unicorn Lumenhorn
    Now $8.00 Was $12.99
    Coming Soon
    Online: null
    In Stores: null
    Online Only
    Free standard shipping with $39 orders.
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    6 Only in stock
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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 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!