Whether it's for summertime or swimming lessons, your girls need the right gear for when they dive into the water. Check out thredUP's selection of girls' swimwear to discover items from top brands at up to 90% off estimated retail.

110 items
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    Carter's Rash Guard (view 2)Carter's Rash Guard (view 1)
    View Product: Carter's Rash Guard

    Carter's

    Rash Guard
    Size 3T
    $12.99
    56% off estimated retail
    Cat & Jack One Piece Swimsuit (view 2)Cat & Jack One Piece Swimsuit (view 1)
    View Product: Cat & Jack One Piece Swimsuit

    Cat & Jack

    One Piece Swimsuit
    Size 3T
    $8.99
    47% off estimated retail
    Tommy Bahama One Piece Swimsuit (view 2)Tommy Bahama One Piece Swimsuit (view 1)
    View Product: Tommy Bahama One Piece Swimsuit

    Tommy Bahama

    One Piece Swimsuit
    Size 3T
    $18.99
    44% off estimated retail
    Cat & Jack One Piece Swimsuit (view 2)Cat & Jack One Piece Swimsuit (view 1)
    View Product: Cat & Jack One Piece Swimsuit

    Cat & Jack

    One Piece Swimsuit
    Size 3T
    $9.99
    41% off estimated retail
    The Edit. Forever Classic, Get perfectly polished in trousers, blazers, and more. Shop The Edit
    Cat & Jack One Piece Swimsuit (view 2)Cat & Jack One Piece Swimsuit (view 1)
    View Product: Cat & Jack One Piece Swimsuit

    Cat & Jack

    One Piece Swimsuit
    Size 3T
    $13.99
    17% off estimated retail
    Cocomelon One Piece Swimsuit (view 2)Cocomelon One Piece Swimsuit (view 1)
    View Product: Cocomelon One Piece Swimsuit

    Cocomelon

    One Piece Swimsuit
    Size 3T
    $15.99
    40% off estimated retail
    Lands' End One Piece Swimsuit (view 2)Lands' End One Piece Swimsuit (view 1)
    View Product: Lands' End One Piece Swimsuit

    Lands' End

    One Piece Swimsuit
    Size 3T
    $23.99
    47% off estimated retail
    Tuga Wetsuit (view 2)Tuga Wetsuit (view 1)
    View Product: Tuga Wetsuit

    Tuga

    Wetsuit
    Size 2
    $18.99
    65% off estimated retail
    Tea Two Piece Swimsuit (view 2)Tea Two Piece Swimsuit (view 1)
    View Product: Tea Two Piece Swimsuit

    Tea

    Two Piece Swimsuit
    Size 3T
    $27.99
    52% off estimated retail
    Shade Critters One Piece Swimsuit (view 2)Shade Critters One Piece Swimsuit (view 1)
    View Product: Shade Critters One Piece Swimsuit

    Shade Critters

    One Piece Swimsuit
    Size 3T
    $19.99
    63% off estimated retail
    Cat & Jack Swimsuit Cover Up (view 2)Cat & Jack Swimsuit Cover Up (view 1)
    View Product: Cat & Jack Swimsuit Cover Up

    Cat & Jack

    Swimsuit Cover Up
    Size 3T
    $15.99
    23% off estimated retail
    Assorted Brands Rash Guard (view 2)Assorted Brands Rash Guard (view 1)
    View Product: Assorted Brands Rash Guard

    Assorted Brands

    Rash Guard
    Size 3T
    $15.99
    40% off estimated retail
    Cat & Jack One Piece Swimsuit (view 2)Cat & Jack One Piece Swimsuit (view 1)
    View Product: Cat & Jack One Piece Swimsuit

    Cat & Jack

    One Piece Swimsuit
    Size 3T
    $12.99
    23% off estimated retail
    Cecil and Lou One Piece Swimsuit (view 2)Cecil and Lou One Piece Swimsuit (view 1)
    View Product: Cecil and Lou One Piece Swimsuit

    Cecil and Lou

    One Piece Swimsuit
    Size 3T
    $8.99
    47% off estimated retail
    Cat & Jack One Piece Swimsuit (view 2)Cat & Jack One Piece Swimsuit (view 1)
    View Product: Cat & Jack One Piece Swimsuit

    Cat & Jack

    One Piece Swimsuit
    Size 3T
    $9.99
    41% off estimated retail
    Marimekko for Target Swimsuit Cover Up (view 2)Marimekko for Target Swimsuit Cover Up (view 1)
    View Product: Marimekko for Target Swimsuit Cover Up

    Marimekko for Target

    Swimsuit Cover Up
    Size 3T
    $9.99
    55% off estimated retail
    Polo by Ralph Lauren One Piece Swimsuit (view 2)Polo by Ralph Lauren One Piece Swimsuit (view 1)
    View Product: Polo by Ralph Lauren One Piece Swimsuit

    Polo by Ralph Lauren

    One Piece Swimsuit
    Size 3T
    $25.99
    64% off estimated retail
    Cat & Jack Rash Guard (view 2)Cat & Jack Rash Guard (view 1)
    View Product: Cat & Jack Rash Guard

    Cat & Jack

    Rash Guard
    Size 3T
    $10.99
    25% off estimated retail
    Cat & Jack One Piece Swimsuit (view 2)Cat & Jack One Piece Swimsuit (view 1)
    View Product: Cat & Jack One Piece Swimsuit

    Cat & Jack

    One Piece Swimsuit
    Size 3T
    $12.99
    35% off estimated retail
    Cat & Jack One Piece Swimsuit (view 2)Cat & Jack One Piece Swimsuit (view 1)
    View Product: Cat & Jack One Piece Swimsuit

    Cat & Jack

    One Piece Swimsuit
    Size 3T
    $15.99
    23% off estimated retail
    Gymboree Rash Guard (view 2)Gymboree Rash Guard (view 1)
    View Product: Gymboree Rash Guard

    Gymboree

    Rash Guard
    Size 3T
    $16.99
    39% off estimated retail
    Old Navy One Piece Swimsuit (view 2)Old Navy One Piece Swimsuit (view 1)
    View Product: Old Navy One Piece Swimsuit

    Old Navy

    One Piece Swimsuit
    Size 3T
    $9.99
    50% off estimated retail
    Elowel One Piece Swimsuit (view 2)Elowel One Piece Swimsuit (view 1)
    View Product: Elowel One Piece Swimsuit

    Elowel

    One Piece Swimsuit
    Size 2
    $8.99
    27% off estimated retail
    Gymboree One Piece Swimsuit (view 2)Gymboree One Piece Swimsuit (view 1)
    View Product: Gymboree One Piece Swimsuit

    Gymboree

    One Piece Swimsuit
    Size 3T
    $22.99
    29% off estimated retail
    Gymboree One Piece Swimsuit (view 2)Gymboree One Piece Swimsuit (view 1)
    View Product: Gymboree One Piece Swimsuit

    Gymboree

    One Piece Swimsuit
    Size 3T
    $22.99
    29% off estimated retail
    Tucker + Tate One Piece Swimsuit (view 2)Tucker + Tate One Piece Swimsuit (view 1)
    View Product: Tucker + Tate One Piece Swimsuit

    Tucker + Tate

    One Piece Swimsuit
    Size 2
    $13.99
    55% off estimated retail
    Zara One Piece Swimsuit (view 2)Zara One Piece Swimsuit (view 1)
    View Product: Zara One Piece Swimsuit

    Zara

    One Piece Swimsuit
    Size 2
    $15.99
    48% off estimated retail
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