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From girls' dresses fit for fairy princesses to frightening getups to adorably cute outfits, Halloween costumes run the gamut. Find the perfect costume for your little one on thredUP and save with prices up to 90% off estimated retail.

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56 items
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    Rubie's Costume (view 2)Rubie's Costume (view 1)
    View Product: Rubie's Costume

    Rubie's

    Costume
    Size Medium kids
    $9.99
    56% off estimated retail
    Disney Costume (view 2)Disney Costume (view 1)
    View Product: Disney Costume

    Disney

    Costume
    Size 4
    $19.99
    58% off estimated retail
    Unbranded Costume (view 2)Unbranded Costume (view 1)
    View Product: Unbranded Costume

    Unbranded

    Costume
    Size One size
    $17.99
    60% off estimated retail
    Amscan Costume (view 2)Amscan Costume (view 1)
    View Product: Amscan Costume

    Amscan

    Costume
    Size Small kids
    $12.99
    43% off estimated retail
    The Edit. Forever Classic, Get perfectly polished in trousers, blazers, and more. Shop The Edit
    Carter's Costume (view 2)Carter's Costume (view 1)
    View Product: Carter's Costume

    Carter's

    Costume
    Size 18 mo
    $13.99
    65% off estimated retail
    Koala Kids Costume (view 1)
    View Product: Koala Kids Costume

    Koala Kids

    Costume
    Size 24 mo
    $7.99
    55% off estimated retail
    Incharacter Costumes Costume (view 2)Incharacter Costumes Costume (view 1)
    View Product: Incharacter Costumes Costume

    Incharacter Costumes

    Costume
    Size X-Large kids
    $23.99
    64% off estimated retail
    Star Wars Costume (view 2)Star Wars Costume (view 1)
    View Product: Star Wars Costume

    Star Wars

    Costume
    Size X-Large youth
    $13.99 $10.49 25% off with code THANKU
    48% off estimated retail
    Weissman Designs for Dance Costume (view 1)
    View Product: Weissman Designs for Dance Costume

    Weissman Designs for Dance

    Costume
    Size X-Small tots
    $10.99 $8.79 20% off with code THANKU
    59% off estimated retail
    Jerris Apparel Costume (view 2)Jerris Apparel Costume (view 1)
    View Product: Jerris Apparel Costume

    Jerris Apparel

    Costume
    Size One size
    $23.99 $16.79 30% off with code THANKU
    46% off estimated retail
    The Cuddle Club Costume (view 2)The Cuddle Club Costume (view 1)
    View Product: The Cuddle Club Costume

    The Cuddle Club

    Costume
    Size 2T
    $7.99 $6.39 20% off with code THANKU
    55% off estimated retail
    My Little Pony Costume (view 2)My Little Pony Costume (view 1)
    View Product: My Little Pony Costume

    My Little Pony

    Costume
    Size 6
    $12.99 $9.74 25% off with code THANKU
    51% off estimated retail
    Assorted Brands Costume (view 1)New With Tags
    View Product: Assorted Brands Costume

    Assorted Brands

    Costume
    Size 3T
    $23.99 $19.19 20% off with code THANKU
    46% off estimated retail
    California Costume Collections Costume (view 2)California Costume Collections Costume (view 1)
    View Product: California Costume Collections Costume

    California Costume Collections

    Costume
    Size 10
    $19.99 $13.99 30% off with code THANKU
    51% off estimated retail
    Spirit Halloween Store Costume (view 1)
    View Product: Spirit Halloween Store Costume

    Spirit Halloween Store

    Costume
    Size 8
    $14.99 $11.99 20% off with code THANKU
    54% off estimated retail
    Revolution Costume (view 2)Revolution Costume (view 1)
    View Product: Revolution Costume

    Revolution

    Costume
    Size 2X-large kids
    $12.99 $10.39 20% off with code THANKU
    51% off estimated retail
    Unbranded Costume (view 2)Unbranded Costume (view 1)
    View Product: Unbranded Costume

    Unbranded

    Costume
    Size Medium infants
    $17.99 $14.39 20% off with code THANKU
    50% off estimated retail
    Celebration Halloween Inc Costume (view 2)Celebration Halloween Inc Costume (view 1)
    View Product: Celebration Halloween Inc Costume

    Celebration Halloween Inc

    Costume
    Size 24 mo
    $14.99 $6.00 60% off with code THANKU
    44% off estimated retail
    DC Super friends Costume (view 2)DC Super friends Costume (view 1)
    View Product: DC Super friends Costume

    DC Super friends

    Costume
    Size 12-18 mo
    $5.99 $4.79 20% off with code THANKU
    66% off estimated retail
    Unbranded Costume (view 2)Unbranded Costume (view 1)
    View Product: Unbranded Costume

    Unbranded

    Costume
    Size 6-12 mo
    $17.99 $14.39 20% off with code THANKU
    50% off estimated retail
    Unbranded Costume (view 2)Unbranded Costume (view 1)
    View Product: Unbranded Costume

    Unbranded

    Costume
    Size 12
    $23.99 $17.99 25% off with code THANKU
    56% off estimated retail
    Marvel Costume (view 2)Marvel Costume (view 1)
    View Product: Marvel Costume

    Marvel

    Costume
    Size Medium youth
    $22.99 $14.94 35% off with code THANKU
    58% off estimated retail
    Assorted Brands Costume (view 2)Assorted Brands Costume (view 1)
    View Product: Assorted Brands Costume

    Assorted Brands

    Costume
    Size One size
    $20.99 $14.69 30% off with code THANKU
    61% off estimated retail
    Assorted Brands Costume (view 1)
    View Product: Assorted Brands Costume

    Assorted Brands

    Costume
    Size 4
    $16.99 $11.89 30% off with code THANKU
    62% off estimated retail
    Assorted Brands Costume (view 2)Assorted Brands Costume (view 1)
    View Product: Assorted Brands Costume

    Assorted Brands

    Costume
    Size Medium tots
    $19.99 $13.99 30% off with code THANKU
    55% off estimated retail
    Assorted Brands Costume (view 2)Assorted Brands Costume (view 1)
    View Product: Assorted Brands Costume

    Assorted Brands

    Costume
    Size 130 cm
    $22.99 $14.94 35% off with code THANKU
    58% off estimated retail
    Carter's Costume (view 2)Carter's Costume (view 1)
    View Product: Carter's Costume

    Carter's

    Costume
    Size 3-6 mo
    $12.99 $10.39 20% off with code THANKU
    68% off estimated retail
    Spirit Halloween Store Costume (view 2)Spirit Halloween Store Costume (view 1)
    View Product: Spirit Halloween Store Costume

    Spirit Halloween Store

    Costume
    Size 12-18 mo
    $9.99 $7.99 20% off with code THANKU
    44% off estimated retail
    Forum Novelties Inc Costume (view 1)
    View Product: Forum Novelties Inc Costume

    Forum Novelties Inc

    Costume
    Size 3
    $9.99 $7.99 20% off with code THANKU
    56% off estimated retail
    Spirit Kids Costume (view 2)Spirit Kids Costume (view 1)
    View Product: Spirit Kids Costume

    Spirit Kids

    Costume
    Size 6-12 mo
    $7.99 $6.39 20% off with code THANKU
    55% off estimated retail
    Assorted Brands Costume (view 2)Assorted Brands Costume (view 1)
    View Product: Assorted Brands Costume

    Assorted Brands

    Costume
    Size X-Large youth
    $21.99 $14.29 35% off with code THANKU
    60% off estimated retail
    Spirit Halloween Store Costume (view 2)Spirit Halloween Store Costume (view 1)
    View Product: Spirit Halloween Store Costume

    Spirit Halloween Store

    Costume
    Size Large kids
    $12.99 $10.39 20% off with code THANKU
    51% off estimated retail
    California Costume Collections Costume (view 2)California Costume Collections Costume (view 1)
    View Product: California Costume Collections Costume

    California Costume Collections

    Costume
    Size X-Large kids
    $16.99 $12.74 25% off with code THANKU
    58% off estimated retail
    Disney Costume (view 2)Disney Costume (view 1)
    View Product: Disney Costume

    Disney

    Costume
    Size 18 mo
    $15.99 $8.79 45% off with code THANKU
    56% off estimated retail
    Tiffany by Tiffany Alision Costume (view 2)Tiffany by Tiffany Alision Costume (view 1)Price Drop
    View Product: Tiffany by Tiffany Alision Costume

    Tiffany by Tiffany Alision

    Costume
    Size X-Small tots
    $14.99 $11.24 25% off with code THANKU
    58% off estimated retail
    Assorted Brands Costume (view 2)Assorted Brands Costume (view 1)Price Drop
    View Product: Assorted Brands Costume

    Assorted Brands

    Costume
    Size Small tots
    $13.99 $9.79 30% off with code THANKU
    61% off estimated retail
    Baby Essentials Costume (view 2)Baby Essentials Costume (view 1)Price Drop
    View Product: Baby Essentials Costume

    Baby Essentials

    Costume
    Size 9 mo
    $9.99 $7.99 20% off with code THANKU
    44% off estimated retail
    Assorted Brands Costume (view 2)Assorted Brands Costume (view 1)Price Drop
    View Product: Assorted Brands Costume

    Assorted Brands

    Costume
    Size 8
    $20.99 $13.64 35% off with code THANKU
    61% off estimated retail
    The Children's Place Costume (view 1)Price Drop
    View Product: The Children's Place Costume

    The Children's Place

    Costume
    Size 6-12 mo
    $10.99 $8.79 20% off with code THANKU
    65% off estimated retail
    Assorted Brands Costume (view 2)Assorted Brands Costume (view 1)Price Drop
    View Product: Assorted Brands Costume

    Assorted Brands

    Costume
    Size 10
    $20.99 $12.59 40% off with code THANKU
    61% off estimated retail
    Spirit Kids Costume (view 1)Price Drop
    View Product: Spirit Kids Costume

    Spirit Kids

    Costume
    Size 6 mo
    $12.99 $9.74 25% off with code THANKU
    27% off estimated retail
    Chrisha Creations Costume (view 2)Chrisha Creations Costume (view 1)Rare Find
    View Product: Chrisha Creations Costume

    Chrisha Creations

    Costume
    Size 12-18 mo
    $7.99 $6.39 20% off with code THANKU
    $7
    Old Navy Costume (view 2)Old Navy Costume (view 1)Price Drop
    View Product: Old Navy Costume

    Old Navy

    Costume
    Size 6-12 mo
    $11.99 $9.59 20% off with code THANKU
    42% off estimated retail
    Rubie's Costume Company Costume (view 2)Rubie's Costume Company Costume (view 1)Price Drop
    View Product: Rubie's Costume Company Costume

    Rubie's Costume Company

    Costume
    Size Large kids
    $15.99 $11.99 25% off with code THANKU
    61% off estimated retail
    Incharacter Costumes Costume (view 1)New With Tags
    View Product: Incharacter Costumes Costume

    Incharacter Costumes

    Costume
    Size 8
    $18.99 $13.29 30% off with code THANKU
    72% off estimated retail
    Assorted Brands Costume (view 2)Assorted Brands Costume (view 1)Price Drop
    View Product: Assorted Brands Costume

    Assorted Brands

    Costume
    Size Large youth
    $18.99 $12.34 35% off with code THANKU
    65% off estimated retail
    Costumes USA Costume (view 2)Costumes USA Costume (view 1)Price Drop
    View Product: Costumes USA Costume

    Costumes USA

    Costume
    Size 3
    $10.99 $8.79 20% off with code THANKU
    67% off estimated retail
    Assorted Brands Costume (view 1)New With Tags
    View Product: Assorted Brands Costume

    Assorted Brands

    Costume
    Size 150 cm
    $14.99 $10.49 30% off with code THANKU
    72% off estimated retail
    California Costume Costume (view 2)California Costume Costume (view 1)Price Drop
    View Product: California Costume Costume

    California Costume

    Costume
    Size X-Large kids
    $11.99 $8.99 25% off with code THANKU
    72% off estimated retail
    Carter's Costume (view 2)Carter's Costume (view 1)Price Drop
    View Product: Carter's Costume

    Carter's

    Costume
    Size 8
    $9.99 $7.49 25% off with code THANKU
    75% off estimated retail
    Disney Costume (view 2)Disney Costume (view 1)Price Drop
    View Product: Disney Costume

    Disney

    Costume
    Size 4
    $9.99 $7.49 25% off with code THANKU
    79% off estimated retail
    Disney Costume (view 2)Disney Costume (view 1)Price Drop
    View Product: Disney Costume

    Disney

    Costume
    Size 4
    $9.99 $7.49 25% off with code THANKU
    79% off estimated retail
    Disney Costume (view 2)Disney Costume (view 1)Price Drop
    View Product: Disney Costume

    Disney

    Costume
    Size 4
    $9.99 $7.49 25% off with code THANKU
    79% off estimated retail
    Rubie's Costume Company Costume (view 1)Price Drop
    View Product: Rubie's Costume Company Costume

    Rubie's Costume Company

    Costume
    Size Medium youth
    $9.99 $7.99 20% off with code THANKU
    75% off estimated retail
    Assorted Brands Costume (view 2)Assorted Brands Costume (view 1)Price Drop
    View Product: Assorted Brands Costume

    Assorted Brands

    Costume
    Size One size
    $9.99 $7.49 25% off with code THANKU
    72% off estimated retail
    Princess Paradise Costume (view 2)Princess Paradise Costume (view 1)Price Drop
    View Product: Princess Paradise Costume

    Princess Paradise

    Costume
    Size 12-18 mo
    $8.99 $7.19 20% off with code THANKU
    50% off estimated retail
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