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.

4,095 items
Carter's Size 12 mo
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View Product: Carter's Size 12 mo

Carter's

Size 12 mo
$14.99 $34

$10.49 30% off with

Hatley Size 12
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View Product: Hatley Size 12

Hatley

Size 12
$11.99 $38

$9.59 20% off with

Shoshanna Size 2T
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View Product: Shoshanna Size 2T

Shoshanna

Size 2T
$25.99 $55

$15.59 40% off with

ZeroXposur Size 5

View Product: ZeroXposur Size 5

ZeroXposur

Size 5
$14.99 $34

$10.49 30% off with

Florence Eiseman Size Newborn
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View Product: Florence Eiseman Size Newborn

Florence Eiseman

Size Newborn
$17.99 $71

$10.79 40% off with

Old Navy Size 8

View Product: Old Navy Size 8

Old Navy

Size 8
$11.99 $25

$9.59 20% off with

Gymboree Size 5T

View Product: Gymboree Size 5T

Gymboree

Size 5T
$13.99 $23

$9.79 30% off with

Assorted Brands Size 10
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View Product: Assorted Brands Size 10

Assorted Brands

Size 10
$16.99 $33

$10.19 40% off with

OndadeMar Size Medium kids
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View Product: OndadeMar Size Medium kids

OndadeMar

Size Medium kids
$23.99 $89

$11.99 50% off with

Gap Kids Size Medium youth
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View Product: Gap Kids Size Medium youth

Gap Kids

Size Medium youth
$14.99 $32

$8.99 40% off with

Kate Mack Size 3T
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View Product: Kate Mack Size 3T

Kate Mack

Size 3T
$15.99 $27

$11.19 30% off with

fat face Size 10
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View Product: fat face Size 10

fat face

Size 10
$10.99 $16

$8.79 20% off with

Hanna Andersson Size 6

View Product: Hanna Andersson Size 6

Hanna Andersson

Size 6
$22.99 $41

$16.09 30% off with

Assorted Brands Size 110 cm

View Product: Assorted Brands Size 110 cm

Assorted Brands

Size 110 cm
$13.99 $27

$9.79 30% off with

Carter's Size 3T

View Product: Carter's Size 3T

Carter's

Size 3T
$12.99 $30

$10.39 20% off with

Carter's Size 3T

View Product: Carter's Size 3T

Carter's

Size 3T
$12.99 $30

$9.09 30% off with

Unbranded Size 70 cm
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View Product: Unbranded Size 70 cm

Unbranded

Size 70 cm
$12.99 $20
Baby Gap Size 2T

View Product: Baby Gap Size 2T

Baby Gap

Size 2T
$11.99 $27

$9.59 20% off with

Gymboree Size 18-24 mo
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View Product: Gymboree Size 18-24 mo

Gymboree

Size 18-24 mo
$20.99 $27

$12.59 40% off with

Unbranded Size Small youth

View Product: Unbranded Size Small youth

Unbranded

Size Small youth
$12.99 $33

$9.09 30% off with

Jump'n Splash Size 10

View Product: Jump'n Splash Size 10

Jump'n Splash

Size 10
$11.99 $25

$8.39 30% off with

Unbranded Size 18 mo

View Product: Unbranded Size 18 mo

Unbranded

Size 18 mo
$11.99 $22

$8.39 30% off with

Assorted Brands Size 6X

View Product: Assorted Brands Size 6X

Assorted Brands

Size 6X
$13.99 $33

$9.79 30% off with

Rockets of Awesome Size 10

View Product: Rockets of Awesome Size 10

Rockets of Awesome

Size 10
$14.99 $33

$10.49 30% off with

Assorted Brands Size X-Large youth

View Product: Assorted Brands Size X-Large youth

Assorted Brands

Size X-Large youth
$13.99 $33

$9.79 30% off with

Stella Cove Size 8

View Product: Stella Cove Size 8

Stella Cove

Size 8
$17.99 $41

$12.59 30% off with

Assorted Brands Size 10

View Product: Assorted Brands Size 10

Assorted Brands

Size 10
$13.99 $33

$8.39 40% off with

Floatimini Size 4
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View Product: Floatimini Size 4

Floatimini

Size 4
$23.99 $64

$14.39 40% off with

Sunuva Size 6-12 mo
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View Product: Sunuva Size 6-12 mo

Sunuva

Size 6-12 mo
$16.99 $41

$11.89 30% off with

Baby Gap Size 18-24 mo
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View Product: Baby Gap Size 18-24 mo

Baby Gap

Size 18-24 mo
$13.99 $25

$11.19 20% off with

Moret Active Girl Size 6

View Product: Moret Active Girl Size 6

Moret Active Girl

Size 6
$12.99 $20

$10.39 20% off with

Cat & Jack Size 3T

View Product: Cat & Jack Size 3T

Cat & Jack

Size 3T
$11.99 $17

$9.59 20% off with

Athleta Size 12

View Product: Athleta Size 12

Athleta

Size 12
$22.99 $49

$18.39 20% off with

Seafolly Size 3

View Product: Seafolly Size 3

Seafolly

Size 3
$14.99 $41

$11.99 20% off with

Maaji Size 12

View Product: Maaji Size 12

Maaji

Size 12
$29.99 $98

$23.99 20% off with

Maaji Size 8

View Product: Maaji Size 8

Maaji

Size 8
$29.99 $98

$23.99 20% off with

Cat & Jack Size 3T

View Product: Cat & Jack Size 3T

Cat & Jack

Size 3T
$11.99 $17

$9.59 20% off with

Assorted Brands Size 8

View Product: Assorted Brands Size 8

Assorted Brands

Size 8
$14.99 $33

$11.99 20% off with

Abercrombie Size 5

View Product: Abercrombie Size 5

Abercrombie

Size 5
$13.99 $32

$11.19 20% off with

Maaji Size 12

View Product: Maaji Size 12

Maaji

Size 12
$28.99 $98

$23.19 20% off with

Assorted Brands Size Large kids

View Product: Assorted Brands Size Large kids

Assorted Brands

Size Large kids
$13.99 $33

$11.19 20% off with

Assorted Brands Size 2T
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View Product: Assorted Brands Size 2T

Assorted Brands

Size 2T
$14.99 $30

$11.99 20% off with

Justice Size 12

View Product: Justice Size 12

Justice

Size 12
$17.99 $33

$14.39 20% off with

Pink Platinum Size 5

View Product: Pink Platinum Size 5

Pink Platinum

Size 5
$10.99 $14

$8.79 20% off with

Angel Beach Size 6X

View Product: Angel Beach Size 6X

Angel Beach

Size 6X
$12.99 $16

$10.39 20% off with

Old Navy Size 8

View Product: Old Navy Size 8

Old Navy

Size 8
$12.99 $18

$10.39 20% off with

Crewcuts Size 7

View Product: Crewcuts Size 7

Crewcuts

Size 7
$22.99 $49

$18.39 20% off with

Kate Mack Size 9 mo

View Product: Kate Mack Size 9 mo

Kate Mack

Size 9 mo
$12.99 $22

$10.39 20% off with

Crewcuts Size 5

View Product: Crewcuts Size 5

Crewcuts

Size 5
$16.99 $41

$13.59 20% off with

Baby Gap Size 2T

View Product: Baby Gap Size 2T

Baby Gap

Size 2T
$12.99 $27

$10.39 20% off with

Tea Size 6

View Product: Tea Size 6

Tea

Size 6
$22.99 $48

$18.39 20% off with

Baby Gap Size 18-24 mo

View Product: Baby Gap Size 18-24 mo

Baby Gap

Size 18-24 mo
$11.99 $21

$9.59 20% off with

Hanna Andersson Size 120 cm

View Product: Hanna Andersson Size 120 cm

Hanna Andersson

Size 120 cm
$21.99 $41

$17.59 20% off with

Cat & Jack Size 4T

View Product: Cat & Jack Size 4T

Cat & Jack

Size 4T
$12.99 $17

$10.39 20% off with

Abercrombie Size Large kids

View Product: Abercrombie Size Large kids

Abercrombie

Size Large kids
$14.99 $32

$11.99 20% off with

Angel Beach Size 6

View Product: Angel Beach Size 6

Angel Beach

Size 6
$12.99 $16

$10.39 20% off with

Speedo Size 12

View Product: Speedo Size 12

Speedo

Size 12
$15.99 $25

$12.79 20% off with

Lands' End Size 10

View Product: Lands' End Size 10

Lands' End

Size 10
$16.99 $33

$13.59 20% off with

Disney Princess Size 6X

View Product: Disney Princess Size 6X

Disney Princess

Size 6X
$10.99 $16

$8.79 20% off with

Cat & Jack Size 18 mo

View Product: Cat & Jack Size 18 mo

Cat & Jack

Size 18 mo
$10.99 $17

$8.79 20% off with

Maaji Size 12

View Product: Maaji Size 12

Maaji

Size 12
$30.99 $98

$24.79 20% off with

Cat & Jack Size 6

View Product: Cat & Jack Size 6

Cat & Jack

Size 6
$11.99 $17

$9.59 20% off with

Justice Size 12

View Product: Justice Size 12

Justice

Size 12
$17.99 $33

$14.39 20% 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 $18

$8.79 20% off with

Assorted Brands Size 6X

View Product: Assorted Brands Size 6X

Assorted Brands

Size 6X
$15.99 $33

$12.79 20% off with

Disney Size 7

View Product: Disney Size 7

Disney

Size 7
$15.99 $26

$12.79 20% off with

Old Navy Size Medium kids

View Product: Old Navy Size Medium kids

Old Navy

Size Medium kids
$11.99 $18

$9.59 20% off with

Carter's Size 9

View Product: Carter's Size 9

Carter's

Size 9
$15.99 $33

$12.79 20% off with

Janie and Jack Size 3-6 mo
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View Product: Janie and Jack Size 3-6 mo

Janie and Jack

Size 3-6 mo
$16.99 $39

$10.19 40% off with

Justice Size 18

View Product: Justice Size 18

Justice

Size 18
$19.99 $33

$13.99 30% off with

Old Navy Size Large kids

View Product: Old Navy Size Large kids

Old Navy

Size Large kids
$14.99 $21

$11.99 20% off with

Assorted Brands Size Small  tots
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View Product: Assorted Brands Size Small tots

Assorted Brands

Size Small tots
$11.99 $20

$9.59 20% off with

Carter's Size 2T
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View Product: Carter's Size 2T

Carter's

Size 2T
$17.99 $34

$10.79 40% off with

ZeroXposur Size 6X
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View Product: ZeroXposur Size 6X

ZeroXposur

Size 6X
$11.99 $38

$9.59 20% off with

Sporti Size 24 mo
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View Product: Sporti Size 24 mo

Sporti

Size 24 mo
$17.99 $22

$10.79 40% off with

Floatimini Size 3T
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View Product: Floatimini Size 3T

Floatimini

Size 3T
$17.99 $64

$12.59 30% off with

Skechers Size 2T
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View Product: Skechers Size 2T

Skechers

Size 2T
$12.99 $27

$10.39 20% off with

OshKosh B'gosh Size 2T
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View Product: OshKosh B'gosh Size 2T

OshKosh B'gosh

Size 2T
$12.99 $24

$10.39 20% off with

Jojo Siwa Size Small kids

View Product: Jojo Siwa Size Small kids

Jojo Siwa

Size Small kids
$14.99 $27

$10.49 30% off with

Carter's Size 18 mo

View Product: Carter's Size 18 mo

Carter's

Size 18 mo
$14.99 $36

$10.49 30% off with

Baby Gap Size 18-24 mo

View Product: Baby Gap Size 18-24 mo

Baby Gap

Size 18-24 mo
$13.99 $27

$9.79 30% off with

Vigoss Size 14

View Product: Vigoss Size 14

Vigoss

Size 14
$13.99 $25

$11.19 20% off with

Speedo Size 6
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View Product: Speedo Size 6

Speedo

Size 6
$18.99 $25

$11.39 40% off with

Crewcuts Size 14

View Product: Crewcuts Size 14

Crewcuts

Size 14
$16.99 $49

$10.19 40% off with

Assorted Brands Size 6
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View Product: Assorted Brands Size 6

Assorted Brands

Size 6
$11.99 $31
Carter's Size 24 mo
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View Product: Carter's Size 24 mo

Carter's

Size 24 mo
$17.99 $36

$10.79 40% off with

Assorted Brands Size 8
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View Product: Assorted Brands Size 8

Assorted Brands

Size 8
$11.99 $31
Cat & Jack Size 2T

View Product: Cat & Jack Size 2T

Cat & Jack

Size 2T
$14.99 $22

$11.99 20% off with

Disney Size 3T
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View Product: Disney Size 3T

Disney

Size 3T
$14.99 $26

$8.99 40% off with

Penelope Mack Size 18 mo
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View Product: Penelope Mack Size 18 mo

Penelope Mack

Size 18 mo
$11.99 $22
Star Wars Size 6

View Product: Star Wars Size 6

Star Wars

Size 6
$9.99 $11
Gap Kids Size Small kids

View Product: Gap Kids Size Small kids

Gap Kids

Size Small kids
$15.99 $32

$12.79 20% off with

UV Skinz Size 6

View Product: UV Skinz Size 6

UV Skinz

Size 6
$11.99 $27

$9.59 20% off with

Old Navy Size Small kids

View Product: Old Navy Size Small kids

Old Navy

Size Small kids
$11.99 $18

$9.59 20% off with

More Than Magic Size 6

View Product: More Than Magic Size 6

More Than Magic

Size 6
$12.99 $16

$10.39 20% off with

Justice Size 12

View Product: Justice Size 12

Justice

Size 12
$20.99 $35

$16.79 20% off with

Ron Jon Surf Shop Size 2

View Product: Ron Jon Surf Shop Size 2

Ron Jon Surf Shop

Size 2
$10.99 $11

$8.79 20% off with

Ruffle Butts Size 3T

View Product: Ruffle Butts Size 3T

Ruffle Butts

Size 3T
$12.99 $14

$10.39 20% off with

Justice Size 8

View Product: Justice Size 8

Justice

Size 8
$17.99 $33

$14.39 20% off with

Justice Size 6

View Product: Justice Size 6

Justice

Size 6
$17.99 $33

$14.39 20% off with

Justice Size 12

View Product: Justice Size 12

Justice

Size 12
$20.99 $35

$16.79 20% off with

Justice Size 12

View Product: Justice Size 12

Justice

Size 12
$20.99 $35

$16.79 20% off with

Cat & Jack Size 4

View Product: Cat & Jack Size 4

Cat & Jack

Size 4
$11.99 $17

$9.59 20% off with

Baby Gap Size 3

View Product: Baby Gap Size 3

Baby Gap

Size 3
$13.99 $27

$11.19 20% off with

Polarn O. Pyret Size 80 cm
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View Product: Polarn O. Pyret Size 80 cm

Polarn O. Pyret

Size 80 cm
$8.99 $18
Cat & Jack Size Large youth

View Product: Cat & Jack Size Large youth

Cat & Jack

Size Large youth
$11.99 $17

$9.59 20% off with

H&M Size 4

View Product: H&M Size 4

H&M

Size 4
$11.99 $16

$9.59 20% off with

Breaking Waves Size 12

View Product: Breaking Waves Size 12

Breaking Waves

Size 12
$13.99 $20

$11.19 20% off with

Tea Size 3-6 mo

View Product: Tea Size 3-6 mo

Tea

Size 3-6 mo
$21.99 $48

$17.59 20% off with

Justice Size 8

View Product: Justice Size 8

Justice

Size 8
$17.99 $33

$14.39 20% off with

Cat & Jack Size 2T
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View Product: Cat & Jack Size 2T

Cat & Jack

Size 2T
$11.99 $17

$9.59 20% off with

Janie and Jack Size 3-6 mo

View Product: Janie and Jack Size 3-6 mo

Janie and Jack

Size 3-6 mo
$16.99 $42

$13.59 20% off with

Old Navy Size 8

View Product: Old Navy Size 8

Old Navy

Size 8
$11.99 $21

$9.59 20% off with

Roxy Size 16

View Product: Roxy Size 16

Roxy

Size 16
$17.99 $41

$14.39 20% off with

The Children's Place Size Large youth

View Product: The Children's Place Size Large youth

The Children's Place

Size Large youth
$11.99 $19

$9.59 20% off with

Cat & Jack Size 2T
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View Product: Cat & Jack Size 2T

Cat & Jack

Size 2T
$8.99 $11.99
Tea Size 4

View Product: Tea Size 4

Tea

Size 4
$16.99 $34

$13.59 20% off with

Tea Size 4T

View Product: Tea Size 4T

Tea

Size 4T
$21.99 $48

$17.59 20% off with

Fab Kids Size X-Large youth

View Product: Fab Kids Size X-Large youth

Fab Kids

Size X-Large youth
$10.99 $16

$8.79 20% off with

Carter's Size 7

View Product: Carter's Size 7

Carter's

Size 7
$15.99 $39

$12.79 20% off with

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