ThredUp LogoThredUp

Girls' Swimwear

Applied Filters (0)

clear all



3,056 results
Sort by:
    Tommy Bahama Two Piece Swimsuit (view 2)Tommy Bahama Two Piece Swimsuit (view 1)
    View Product: Tommy Bahama Two Piece Swimsuit

    Tommy Bahama

    Two Piece Swimsuit
    18-24 MO / 24 MO
    $14.99
    44% off est. retail
    Unbranded Board Shorts (view 2)Unbranded Board Shorts (view 1)
    View Product: Unbranded Board Shorts

    Unbranded

    Board Shorts
    Size 10
    $10.99
    50% off est. retail
    Lands' End Two Piece Swimsuit (view 2)Lands' End Two Piece Swimsuit (view 1)
    View Product: Lands' End Two Piece Swimsuit

    Lands' End

    Two Piece Swimsuit
    Size 12 (big kids)
    $25.99
    59% off est. 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 16 (big kids)
    $11.99
    29% off est. retail
    Athleta Girl Rash Guard (view 2)Athleta Girl Rash Guard (view 1)
    View Product: Athleta Girl Rash Guard

    Athleta Girl

    Rash Guard
    Size 14 (big kids)
    $21.99
    55% off est. retail
    Cat & Jack One Piece Swimsuit (view 2)Cat & Jack One Piece Swimsuit (view 1)New With Tags
    View Product: Cat & Jack One Piece Swimsuit

    Cat & Jack

    One Piece Swimsuit
    Size L (big kids)
    $10.99
    52% off est. 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 10
    $12.99
    23% off est. retail
    Janie and Jack Board Shorts (view 2)Janie and Jack Board Shorts (view 1)
    View Product: Janie and Jack Board Shorts

    Janie and Jack

    Board Shorts
    Size 6-12 mo
    $8.99
    50% off est. retail
    Hanna Andersson Swimsuit Cover Up (view 2)Hanna Andersson Swimsuit Cover Up (view 1)
    View Product: Hanna Andersson Swimsuit Cover Up

    Hanna Andersson

    Swimsuit Cover Up
    Size 12-18 mo
    $18.99
    57% off est. retail
    Gymboree Swimsuit Cover Up (view 2)Gymboree Swimsuit Cover Up (view 1)
    View Product: Gymboree Swimsuit Cover Up

    Gymboree

    Swimsuit Cover Up
    Size 6-12 mo
    $19.99
    25% off est. retail
    Sunshine Swing One Piece Swimsuit (view 2)Sunshine Swing One Piece Swimsuit (view 1)
    View Product: Sunshine Swing One Piece Swimsuit

    Sunshine Swing

    One Piece Swimsuit
    Size 14 (big kids)
    $11.99
    52% off est. retail
    Unbranded One Piece Swimsuit (view 2)Unbranded One Piece Swimsuit (view 1)
    View Product: Unbranded One Piece Swimsuit

    Unbranded

    One Piece Swimsuit
    Size L (big kids)
    $12.99
    60% off est. retail
    Molo One Piece Swimsuit (view 2)Molo One Piece Swimsuit (view 1)
    View Product: Molo One Piece Swimsuit

    Molo

    One Piece Swimsuit
    Size 6 (big kids)
    $33.99
    58% off est. retail
    H&M One Piece Swimsuit (view 2)H&M One Piece Swimsuit (view 1)
    View Product: H&M One Piece Swimsuit

    H&M

    One Piece Swimsuit
    Size 8 (big kids)
    $9.99
    50% off est. 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 8 (big kids)
    $10.99
    35% off est. retail
    Gap Kids One Piece Swimsuit (view 2)Gap Kids One Piece Swimsuit (view 1)
    View Product: Gap Kids One Piece Swimsuit

    Gap Kids

    One Piece Swimsuit
    Size M (big kids)
    $17.99
    55% off est. retail
    Unbranded One Piece Swimsuit (view 2)Unbranded One Piece Swimsuit (view 1)
    View Product: Unbranded One Piece Swimsuit

    Unbranded

    One Piece Swimsuit
    Size L (big kids)
    $13.99
    57% off est. retail
    Stella Cove One Piece Swimsuit (view 2)Stella Cove One Piece Swimsuit (view 1)
    View Product: Stella Cove One Piece Swimsuit

    Stella Cove

    One Piece Swimsuit
    Size 4
    $15.99
    52% off est. retail
    Art Class One Piece Swimsuit (view 2)Art Class One Piece Swimsuit (view 1)
    View Product: Art Class One Piece Swimsuit

    Art Class

    One Piece Swimsuit
    Size 7 (big kids)
    $12.99
    35% off est. retail
    Random Hearts One Piece Swimsuit (view 2)Random Hearts One Piece Swimsuit (view 1)
    View Product: Random Hearts One Piece Swimsuit

    Random Hearts

    One Piece Swimsuit
    Size 8 (big kids)
    $8.99
    43% off est. retail
    Dori Creations One Piece Swimsuit (view 2)Dori Creations One Piece Swimsuit (view 1)
    View Product: Dori Creations One Piece Swimsuit

    Dori Creations

    One Piece Swimsuit
    Size 10
    $16.99
    65% off est. retail
    Random Hearts One Piece Swimsuit (view 2)Random Hearts One Piece Swimsuit (view 1)
    View Product: Random Hearts One Piece Swimsuit

    Random Hearts

    One Piece Swimsuit
    Size 7 (big kids)
    $8.99
    43% off est. retail
    Dori Creations One Piece Swimsuit (view 2)Dori Creations One Piece Swimsuit (view 1)New With Tags
    View Product: Dori Creations One Piece Swimsuit

    Dori Creations

    One Piece Swimsuit
    Size 10
    $12.99
    67% off est. retail
    City Threads One Piece Swimsuit (view 2)City Threads One Piece Swimsuit (view 1)
    View Product: City Threads One Piece Swimsuit

    City Threads

    One Piece Swimsuit
    Size 8 (big kids)
    $8.99
    43% off est. retail
    Cat & Jack Two Piece Swimsuit (view 2)Cat & Jack Two Piece Swimsuit (view 1)
    View Product: Cat & Jack Two Piece Swimsuit

    Cat & Jack

    Two Piece Swimsuit
    Size 8 (big kids)
    $11.99
    29% off est. 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 8 (big kids)
    $12.99
    23% off est. retail
    Circo Board Shorts (view 2)Circo Board Shorts (view 1)
    View Product: Circo Board Shorts

    Circo

    Board Shorts
    Size XL (big kids)
    $8.99
    18% off est. retail
    Cat & Jack Two Piece Swimsuit (view 2)Cat & Jack Two Piece Swimsuit (view 1)
    View Product: Cat & Jack Two Piece Swimsuit

    Cat & Jack

    Two Piece Swimsuit
    Size 6 (big kids)
    $9.99
    41% off est. retail
    Cat & Jack Rash Guard (view 2)Cat & Jack Rash Guard (view 1)
    View Product: Cat & Jack Rash Guard

    Cat & Jack

    Rash Guard
    Size S (big kids)
    $9.99
    16% off est. retail
    Shade Critters Two Piece Swimsuit (view 2)Shade Critters Two Piece Swimsuit (view 1)
    View Product: Shade Critters Two Piece Swimsuit

    Shade Critters

    Two Piece Swimsuit
    Size 4T
    $20.99
    61% off est. retail
    Splatter Board Shorts (view 2)Splatter Board Shorts (view 1)
    View Product: Splatter Board Shorts

    Splatter

    Board Shorts
    Size 8 (big kids)
    $11.99
    45% off est. 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 XS (big kids)
    $13.99
    17% off est. retail
    Boden Two Piece Swimsuit (view 2)Boden Two Piece Swimsuit (view 1)
    View Product: Boden Two Piece Swimsuit

    Boden

    Two Piece Swimsuit
    Size 6 (big kids)
    $18.99
    61% off est. retail
    Active by Old Navy Board Shorts (view 2)Active by Old Navy Board Shorts (view 1)
    View Product: Active by Old Navy Board Shorts

    Active by Old Navy

    Board Shorts
    Size 6 (big kids)
    $8.99
    43% off est. retail
    Harley Davidson Board Shorts (view 2)Harley Davidson Board Shorts (view 1)
    View Product: Harley Davidson Board Shorts

    Harley Davidson

    Board Shorts
    Size 3T
    $9.99
    56% off est. retail
    Gap Kids Two Piece Swimsuit (view 2)Gap Kids Two Piece Swimsuit (view 1)
    View Product: Gap Kids Two Piece Swimsuit

    Gap Kids

    Two Piece Swimsuit
    Size 6 (big kids)
    $20.99
    50% off est. retail
    KANU girl One Piece Swimsuit (view 2)KANU girl One Piece Swimsuit (view 1)
    View Product: KANU girl One Piece Swimsuit

    KANU girl

    One Piece Swimsuit
    Size 10
    $20.99
    36% off est. retail
    KANU girl One Piece Swimsuit (view 2)KANU girl One Piece Swimsuit (view 1)
    View Product: KANU girl One Piece Swimsuit

    KANU girl

    One Piece Swimsuit
    Size 12 (big kids)
    $20.99
    36% off est. retail
    Ruffle Butts Two Piece Swimsuit (view 2)Ruffle Butts Two Piece Swimsuit (view 1)
    View Product: Ruffle Butts Two Piece Swimsuit

    Ruffle Butts

    Two Piece Swimsuit
    Size 8 (big kids)
    $13.99
    12% off est. retail
    Assorted Brands One Piece Swimsuit (view 2)Assorted Brands One Piece Swimsuit (view 1)
    View Product: Assorted Brands One Piece Swimsuit

    Assorted Brands

    One Piece Swimsuit
    Size 10
    $15.99
    51% off est. retail
    Assorted Brands One Piece Swimsuit (view 2)Assorted Brands One Piece Swimsuit (view 1)
    View Product: Assorted Brands One Piece Swimsuit

    Assorted Brands

    One Piece Swimsuit
    Size 12 (big kids)
    $18.99
    42% off est. retail
    Assorted Brands One Piece Swimsuit (view 2)Assorted Brands One Piece Swimsuit (view 1)
    View Product: Assorted Brands One Piece Swimsuit

    Assorted Brands

    One Piece Swimsuit
    Size 10
    $16.99
    48% off est. 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 5 (big kids)
    $11.99
    29% off est. retail
    OshKosh B'gosh One Piece Swimsuit (view 2)OshKosh B'gosh One Piece Swimsuit (view 1)
    View Product: OshKosh B'gosh One Piece Swimsuit

    OshKosh B'gosh

    One Piece Swimsuit
    Size 2T
    $13.99
    41% off est. retail
    Gap Kids One Piece Swimsuit (view 2)Gap Kids One Piece Swimsuit (view 1)
    View Product: Gap Kids One Piece Swimsuit

    Gap Kids

    One Piece Swimsuit
    Size 6 (big kids)
    $20.99
    47% off est. retail
    Lilly Pulitzer Board Shorts (view 2)Lilly Pulitzer Board Shorts (view 1)
    View Product: Lilly Pulitzer Board Shorts

    Lilly Pulitzer

    Board Shorts
    Size 4
    $10.99
    59% off est. retail
    Kidpik One Piece Swimsuit (view 2)Kidpik One Piece Swimsuit (view 1)
    View Product: Kidpik One Piece Swimsuit

    Kidpik

    One Piece Swimsuit
    Size 4T
    $9.99
    50% off est. retail
    Cat & Jack Board Shorts (view 2)Cat & Jack Board Shorts (view 1)
    View Product: Cat & Jack Board Shorts

    Cat & Jack

    Board Shorts
    Size 12 (big kids)
    $7.99
    20% off est. retail
    Gap Kids Two Piece Swimsuit (view 2)Gap Kids Two Piece Swimsuit (view 1)
    View Product: Gap Kids Two Piece Swimsuit

    Gap Kids

    Two Piece Swimsuit
    Size 6 (big kids)
    $18.99
    55% off est. retail
    Matilda Jane Rash Guard (view 2)Matilda Jane Rash Guard (view 1)
    View Product: Matilda Jane Rash Guard

    Matilda Jane

    Rash Guard
    Size 8 (big kids)
    $21.99
    55% off est. retail
    Cat & Jack Two Piece Swimsuit (view 2)Cat & Jack Two Piece Swimsuit (view 1)
    View Product: Cat & Jack Two Piece Swimsuit

    Cat & Jack

    Two Piece Swimsuit
    Size 6 (big kids)
    $14.99
    11% off est. retail
    Cat & Jack Two Piece Swimsuit (view 2)Cat & Jack Two Piece Swimsuit (view 1)
    View Product: Cat & Jack Two Piece Swimsuit

    Cat & Jack

    Two Piece Swimsuit
    Size 6 (big kids)
    $13.99
    17% off est. retail
    Nickelodeon Two Piece Swimsuit (view 2)Nickelodeon Two Piece Swimsuit (view 1)
    View Product: Nickelodeon Two Piece Swimsuit

    Nickelodeon

    Two Piece Swimsuit
    Size 6 (big kids)
    $13.99
    44% off est. retail
    Carter's Two Piece Swimsuit (view 2)Carter's Two Piece Swimsuit (view 1)
    View Product: Carter's Two Piece Swimsuit

    Carter's

    Two Piece Swimsuit
    Size 6 (big kids)
    $15.99
    59% off est. retail
    Carter's Two Piece Swimsuit (view 2)Carter's Two Piece Swimsuit (view 1)
    View Product: Carter's Two Piece Swimsuit

    Carter's

    Two Piece Swimsuit
    Size 6 (big kids)
    $14.99
    61% off est. retail
    Kate Quinn Organics Two Piece Swimsuit (view 2)Kate Quinn Organics Two Piece Swimsuit (view 1)
    View Product: Kate Quinn Organics Two Piece Swimsuit

    Kate Quinn Organics

    Two Piece Swimsuit
    Size 18-24 mo
    $13.99
    36% off est. retail
    Old Navy Rash Guard (view 2)Old Navy Rash Guard (view 1)
    View Product: Old Navy Rash Guard

    Old Navy

    Rash Guard
    Size 12-24 mo
    $11.99
    14% off est. retail
    Mini Boden Board Shorts (view 2)Mini Boden Board Shorts (view 1)
    View Product: Mini Boden Board Shorts

    Mini Boden

    Board Shorts
    Size 6 (big kids)
    $12.99
    51% off est. retail
    Assorted Brands Rash Guard (view 2)Assorted Brands Rash Guard (view 1)
    View Product: Assorted Brands Rash Guard

    Assorted Brands

    Rash Guard
    Size 2
    $15.99
    27% off est. retail
    Btween One Piece Swimsuit (view 2)Btween One Piece Swimsuit (view 1)
    View Product: Btween One Piece Swimsuit

    Btween

    One Piece Swimsuit
    Size 4
    $13.99
    30% off est. retail
    OshKosh B'gosh Rash Guard (view 2)OshKosh B'gosh Rash Guard (view 1)
    View Product: OshKosh B'gosh Rash Guard

    OshKosh B'gosh

    Rash Guard
    Size 3T
    $15.99
    33% off est. retail
    Ruffle Butts Rash Guard (view 2)Ruffle Butts Rash Guard (view 1)
    View Product: Ruffle Butts Rash Guard

    Ruffle Butts

    Rash Guard
    Size 3T
    $9.99
    28% off est. 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 5 (big kids)
    $12.99
    61% off est. retail
    Old Navy Board Shorts (view 2)Old Navy Board Shorts (view 1)
    View Product: Old Navy Board Shorts

    Old Navy

    Board Shorts
    Size 5T
    $9.99
    28% off est. retail
    Great Wolf Lodge One Piece Swimsuit (view 2)Great Wolf Lodge One Piece Swimsuit (view 1)New With Tags
    View Product: Great Wolf Lodge One Piece Swimsuit

    Great Wolf Lodge

    One Piece Swimsuit
    Size 6 (big kids)
    $14.99
    44% off est. retail
    Old Navy Swimsuit Cover Up (view 2)Old Navy Swimsuit Cover Up (view 1)
    View Product: Old Navy Swimsuit Cover Up

    Old Navy

    Swimsuit Cover Up
    Size 3T
    $11.99
    33% off est. retail
    Xhilaration Two Piece Swimsuit (view 2)Xhilaration Two Piece Swimsuit (view 1)
    View Product: Xhilaration Two Piece Swimsuit

    Xhilaration

    Two Piece Swimsuit
    Size XS (big kids)
    $12.99
    18% off est. retail
    Cat & Jack Two Piece Swimsuit (view 2)Cat & Jack Two Piece Swimsuit (view 1)
    View Product: Cat & Jack Two Piece Swimsuit

    Cat & Jack

    Two Piece Swimsuit
    Size M (big kids)
    $11.99
    29% off est. retail
    Jessica Simpson Rash Guard (view 2)Jessica Simpson Rash Guard (view 1)
    View Product: Jessica Simpson Rash Guard

    Jessica Simpson

    Rash Guard
    12-18 MO / 18 MO
    $12.99
    18% off est. retail
    Carter's Board Shorts (view 2)Carter's Board Shorts (view 1)
    View Product: Carter's Board Shorts

    Carter's

    Board Shorts
    Size 2T
    $10.99
    54% off est. retail
    Jessica Simpson Board Shorts (view 2)Jessica Simpson Board Shorts (view 1)
    View Product: Jessica Simpson Board Shorts

    Jessica Simpson

    Board Shorts
    9-12 MO / 12 MO
    $8.99
    18% off est. retail
    First Impressions Board Shorts (view 2)First Impressions Board Shorts (view 1)
    View Product: First Impressions Board Shorts

    First Impressions

    Board Shorts
    12-18 MO / 18 MO
    $11.99
    33% off est. retail
    Nike One Piece Swimsuit (view 2)Nike One Piece Swimsuit (view 1)
    View Product: Nike One Piece Swimsuit

    Nike

    One Piece Swimsuit
    Size XS (big kids)
    $17.99
    53% off est. retail
    Unbranded One Piece Swimsuit (view 2)Unbranded One Piece Swimsuit (view 1)
    View Product: Unbranded One Piece Swimsuit

    Unbranded

    One Piece Swimsuit
    Size M (big kids)
    $15.99
    40% off est. retail
    Unbranded One Piece Swimsuit (view 2)Unbranded One Piece Swimsuit (view 1)
    View Product: Unbranded One Piece Swimsuit

    Unbranded

    One Piece Swimsuit
    Size 6 (big kids)
    $14.99
    54% off est. retail
    Athleta Board Shorts (view 2)Athleta Board Shorts (view 1)
    View Product: Athleta Board Shorts

    Athleta

    Board Shorts
    Size 14 (big kids)
    $17.99
    51% off est. retail
    Carter's Two Piece Swimsuit (view 2)Carter's Two Piece Swimsuit (view 1)
    View Product: Carter's Two Piece Swimsuit

    Carter's

    Two Piece Swimsuit
    6-9 MO / 9 MO
    $13.99
    53% off est. retail
    Carter's Rash Guard (view 2)Carter's Rash Guard (view 1)
    View Product: Carter's Rash Guard

    Carter's

    Rash Guard
    6-9 MO / 9 MO
    $16.99
    34% off est. retail
    Art Class One Piece Swimsuit (view 2)Art Class One Piece Swimsuit (view 1)
    View Product: Art Class One Piece Swimsuit

    Art Class

    One Piece Swimsuit
    Size 10
    $12.99
    35% off est. retail
    Hanna Andersson One Piece Swimsuit (view 2)Hanna Andersson One Piece Swimsuit (view 1)
    View Product: Hanna Andersson One Piece Swimsuit

    Hanna Andersson

    One Piece Swimsuit
    Size 12 (big kids)
    $24.99
    41% off est. retail
    Art Class Two Piece Swimsuit (view 2)Art Class Two Piece Swimsuit (view 1)
    View Product: Art Class Two Piece Swimsuit

    Art Class

    Two Piece Swimsuit
    Size 10
    $15.99
    20% off est. retail
    Cat & Jack Two Piece Swimsuit (view 2)Cat & Jack Two Piece Swimsuit (view 1)
    View Product: Cat & Jack Two Piece Swimsuit

    Cat & Jack

    Two Piece Swimsuit
    Size 10
    $9.99
    41% off est. retail
    Uniqlo Board Shorts (view 2)Uniqlo Board Shorts (view 1)
    View Product: Uniqlo Board Shorts

    Uniqlo

    Board Shorts
    Size 110 (big kids)
    $9.99
    28% off est. retail
    Baby Gap Two Piece Swimsuit (view 2)Baby Gap Two Piece Swimsuit (view 1)
    View Product: Baby Gap Two Piece Swimsuit

    Baby Gap

    Two Piece Swimsuit
    Size 6-12 mo
    $20.99
    47% off est. retail
    Nike One Piece Swimsuit (view 2)Nike One Piece Swimsuit (view 1)
    View Product: Nike One Piece Swimsuit

    Nike

    One Piece Swimsuit
    Size XL (big kids)
    $17.99 $9.00 50% off with code WELCOME
    53% off est. retail
    H&M One Piece Swimsuit (view 2)H&M One Piece Swimsuit (view 1)
    View Product: H&M One Piece Swimsuit

    H&M

    One Piece Swimsuit
    Size 20 (big kids)
    $9.99 $5.00 50% off with code WELCOME
    50% off est. retail
    Search TwinkleSearch Twinkel Icon

    These items go fast!

    Around 321 items matching your search will be added this week. Save a search now and we’ll let you know when they arrive.

    Related searches