Girls' Swimwear

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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.

3,999 items
Old Navy Size Large youth

View Product: Old Navy Size Large youth

Old Navy

Size Large youth
$12.99 $17

$9.09 30% off with

Breaking Waves Size 12

View Product: Breaking Waves Size 12

Breaking Waves

Size 12
$8.99 $19

$6.29 30% off with

Janie and Jack Size 6-12 mo

View Product: Janie and Jack Size 6-12 mo

Janie and Jack

Size 6-12 mo
$14.99 $39

$10.49 30% off with

Soft Gallery Size 3
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View Product: Soft Gallery Size 3

Soft Gallery

Size 3
$13.99 $64

$8.39 40% off with

OshKosh B'gosh Size 4

View Product: OshKosh B'gosh Size 4

OshKosh B'gosh

Size 4
$10.99 $25

$6.59 40% off with

Cat & Jack Size Medium kids

View Product: Cat & Jack Size Medium kids

Cat & Jack

Size Medium kids
$7.99 $13

$6.39 20% off with

Molo Size 80 cm

View Product: Molo Size 80 cm

Molo

Size 80 cm
$18.99 $61

$15.19 20% off with

O'Neill Size 3

View Product: O'Neill Size 3

O'Neill

Size 3
$14.99 $51

$11.99 20% off with

Kamik Size 8

View Product: Kamik Size 8

Kamik

Size 8
$9.99 $31

$6.99 30% off with

Janie and Jack Size 2T

View Product: Janie and Jack Size 2T

Janie and Jack

Size 2T
$18.99 $39

$13.29 30% off with

Janie and Jack Size 2T

View Product: Janie and Jack Size 2T

Janie and Jack

Size 2T
$17.99 $39

$12.59 30% off with

Unbranded Size 130 cm

View Product: Unbranded Size 130 cm

Unbranded

Size 130 cm
$14.99 $31

$10.49 30% off with

Carter's Size 2T

View Product: Carter's Size 2T

Carter's

Size 2T
$19.99 $34

$13.99 30% off with

Marimekko Size 3

View Product: Marimekko Size 3

Marimekko

Size 3
$16.99 $38

$11.89 30% off with

Old Navy Size 3-6 mo
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View Product: Old Navy Size 3-6 mo

Old Navy

Size 3-6 mo
$10.99 $17

$8.79 20% off with

Ralph Lauren Size Large youth

View Product: Ralph Lauren Size Large youth

Ralph Lauren

Size Large youth
$11.99 $46

$8.39 30% off with

Gymboree Size 5T

View Product: Gymboree Size 5T

Gymboree

Size 5T
$13.99 $22

$9.79 30% off with

Crewcuts Size 16

View Product: Crewcuts Size 16

Crewcuts

Size 16
$17.99 $46

$12.59 30% off with

Lands' End Size 16

View Product: Lands' End Size 16

Lands' End

Size 16
$11.99 $27

$8.39 30% off with

Assorted Brands Size 18 mo
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View Product: Assorted Brands Size 18 mo

Assorted Brands

Size 18 mo
$8.99 $20
Assorted Brands Size Medium youth
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View Product: Assorted Brands Size Medium youth

Assorted Brands

Size Medium youth
$7.99 $31

$6.39 20% off with

Carter's Size 3-6 mo
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View Product: Carter's Size 3-6 mo

Carter's

Size 3-6 mo
$9.99 $28

$5.99 40% off with

Carter's Size 6 mo

View Product: Carter's Size 6 mo

Carter's

Size 6 mo
$9.99 $28

$5.99 40% off with

Unbranded Size 2X-large kids
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View Product: Unbranded Size 2X-large kids

Unbranded

Size 2X-large kids
$6.99 $31
Lands' End Size 18

View Product: Lands' End Size 18

Lands' End

Size 18
$26.99 $49

$18.89 30% off with

Stella Cove Size 5

View Product: Stella Cove Size 5

Stella Cove

Size 5
$9.99 $32

$7.99 20% off with

Okaou Size 5
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View Product: Okaou Size 5

Okaou

Size 5
$8.99 $21

$7.19 20% off with

Tip Top Size 12 mo
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View Product: Tip Top Size 12 mo

Tip Top

Size 12 mo
$6.99 $20
The Children's Place Size 16

View Product: The Children's Place Size 16

The Children's Place

Size 16
$4.99 $13
Coogi Size 12
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View Product: Coogi Size 12

Coogi

Size 12
$41.99 $120

$25.19 40% off with

O'Rageous Size 6
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View Product: O'Rageous Size 6

O'Rageous

Size 6
$10.99 $23

$8.79 20% off with

Gap Kids Size X-Large youth
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View Product: Gap Kids Size X-Large youth

Gap Kids

Size X-Large youth
$10.99 $40

$6.59 40% off with

Rip Curl Size 10

View Product: Rip Curl Size 10

Rip Curl

Size 10
$12.99 $46

$9.09 30% off with

Gap Kids Size 12
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View Product: Gap Kids Size 12

Gap Kids

Size 12
$14.99 $30

$10.49 30% off with

Carter's Size 4
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View Product: Carter's Size 4

Carter's

Size 4
$15.99 $36

$11.19 30% off with

The Children's Place Size 14

View Product: The Children's Place Size 14

The Children's Place

Size 14
$7.99 $15

$6.39 20% off with

Nanette Lepore Size Medium youth
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View Product: Nanette Lepore Size Medium youth

Nanette Lepore

Size Medium youth
$17.99 $77

$10.79 40% off with

Cat & Jack Size 10

View Product: Cat & Jack Size 10

Cat & Jack

Size 10
$10.99 $15

$7.69 30% off with

Gymboree Size 12-18 mo
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View Product: Gymboree Size 12-18 mo

Gymboree

Size 12-18 mo
$4.99 $25
Abercrombie Size 12

View Product: Abercrombie Size 12

Abercrombie

Size 12
$9.99 $35

$6.99 30% off with

Assorted Brands Size 3
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View Product: Assorted Brands Size 3

Assorted Brands

Size 3
$13.99 $26

$8.39 40% off with

Baby Gap Size 4T

View Product: Baby Gap Size 4T

Baby Gap

Size 4T
$10.99 $25

$6.59 40% off with

Gymboree Size 12-18 mo

View Product: Gymboree Size 12-18 mo

Gymboree

Size 12-18 mo
$13.99 $25

$8.39 40% off with

Coolibar Size Medium youth

View Product: Coolibar Size Medium youth

Coolibar

Size Medium youth
$10.99 $46

$6.59 40% off with

Blackflips Size 6
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View Product: Blackflips Size 6

Blackflips

Size 6
$13.99 $49

$6.99 50% off with

Mudpie Baby Size 9-12 mo
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View Product: Mudpie Baby Size 9-12 mo

Mudpie Baby

Size 9-12 mo
$16.99 $61

$13.59 20% off with

Justice Size 14

View Product: Justice Size 14

Justice

Size 14
$13.99 $31

$11.19 20% off with

Limited Too Size 10

View Product: Limited Too Size 10

Limited Too

Size 10
$10.99 $31

$8.79 20% off with

Disney Size 2

View Product: Disney Size 2

Disney

Size 2
$12.99 $20

$10.39 20% off with

Baby Gap Size 5

View Product: Baby Gap Size 5

Baby Gap

Size 5
$11.99 $25

$9.59 20% off with