Girls Bikinis

Dive into summer with Decathlon's girls bikinis. Crafted with quick-dry materials, our range prioritises both style and comfort. With adjustable straps and a snug fit tailored for young swimmers, they're built to make every splash and swim session effortlessly enjoyable.
53 items
OLAIAN GIRL'S HIGH-WAISTED BAO SWIMSUIT BOTTOMS 500 MELON
OLAIAN GIRL'S HIGH-WAISTED BAO SWIMSUIT BOTTOMS 500 STRAWBERRY
OLAIAN GIRL'S HIGH-WAISTED BAO SWIMSUIT BOTTOMS 500 LAVENDER
OLAIAN Girl's textured swimsuit bottom - 500 bao black
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OLAIAN GIRL'S HIGH-WAISTED BAO SWIMSUIT BOTTOMS 500 MELON
Rate: 4.6 stars, 50 votes
4 colors
£7.99£12.99
OLAIAN GIRL'S SURFING TRIANGLE LILY SWIMSUIT TOP 900 BLUR PINK
OLAIAN GIRL'S SURFING LILY SWIMSUIT TRIANGLE TOP 900 BLACK
OLAIAN Girl's swimsuit top - 900 Lily purple turquoise
Gallery item 1 out of 3
OLAIAN GIRL'S SURFING TRIANGLE LILY SWIMSUIT TOP 900 BLUR PINK
Rate: 4.8 stars, 20 votes
3 colors
£9.99£14.99
OLAIAN GIRL'S LANA TEXTURED SWIMSUIT CROP TOP 500 STRAWBERRY
OLAIAN GIRL'S SWIMSUIT CROP TOP LANA TEXTURE 500 MELON
OLAIAN GIRL'S LANA TEXTURED SWIMSUIT CROP TOP 500 LAVENDER
OLAIAN Girl's textured swimsuit crop top - 500 Lana black
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OLAIAN GIRL'S LANA TEXTURED SWIMSUIT CROP TOP 500 STRAWBERRY
Rate: 4.1 stars, 56 votes
4 colors
£6.99£12.99
OLAIAN 2-piece swimsuit TAMARA 100 - coral
OLAIAN 2-piece swimsuit TAMARA 100 black
Gallery item 1 out of 2
OLAIAN 2-piece swimsuit TAMARA 100 - coral
Rate: 4.6 stars, 407 votes
2 colors
£4.99£6.99
OLAIAN LITTLE GIRL'S Swimsuit bottoms MADI 100 - PINK
OLAIAN GIRL'S Swimsuit bottom JUNE CORAL
OLAIAN LITTLE GIRL'S Swimsuit bottoms MADI 100 - PINK
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OLAIAN LITTLE GIRL'S Swimsuit bottoms MADI 100 - PINK
Rate: 4.3 stars, 269 votes
3 colors
£10.99
Was £12.99
OLAIAN GIRL'S BUDDY SWIMSUIT BOTTOMS 900 BLUR
OLAIAN GIRL'S BUDDY SWIMSUIT BOTTOM 900 BLACK
OLAIAN Girl's swimsuit bottoms - 900 Buddy purple turquoise
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OLAIAN GIRL'S BUDDY SWIMSUIT BOTTOMS 900 BLUR
Rate: 4.9 stars, 21 votes
3 colors
£7.99£12.99
OLAIAN GIRL’S REVERSIBLE SWIMSUIT BOTTOMS 500 BLACK
OLAIAN GIRL’S REVERSIBLE SWIMSUIT BOTTOMS 500 PURPLE
OLAIAN Girl's reversible swimsuit bottoms - 500 Bella Leopard blue
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OLAIAN GIRL’S REVERSIBLE SWIMSUIT BOTTOMS 500 BLACK
Rate: 4.3 stars, 40 votes
3 colors
£5.99£12.99
OLAIAN GIRL'S SURFING SWIMSUIT TRIANGLE TOP LIZY 500 BLACK
OLAIAN GIRL'S SURFING TRIANGLE SWIMSUIT TOP LIZY 500 VIOLET
OLAIAN Girl's triangular swimsuit top - 500 Lizy leopard blue
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OLAIAN GIRL'S SURFING SWIMSUIT TRIANGLE TOP LIZY 500 BLACK
Rate: 4.5 stars, 42 votes
3 colors
£8.99£12.99
NABAIJI Girls’ Swimming Swimsuit Bottoms Lila - White
NABAIJI Girls' Swimming Swimsuit Bottoms Lila Marg Red
NABAIJI Girls’ Swimming Swimsuit Bottoms Lila - Blue
NABAIJI Girls’ Swimsuit Bottoms Lila Pantai - White
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NABAIJI Girls’ Swimming Swimsuit Bottoms Lila - White
Rate: 4.7 stars, 267 votes
4 colors
£4.99£7.99
OLAIAN GIRL'S SURF Swimsuit bottoms TIARE MAS 900
OLAIAN GIRL'S SURF Swimsuit bottoms MAS 900 - BLACK
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OLAIAN GIRL'S SURF Swimsuit bottoms TIARE MAS 900
Rate: 4.6 stars, 432 votes
2 colors
£10.99
NABAIJI Girl’s swimming bikini top Kamyleon Dino
NABAIJI Girl’s swimming bikini top Kamyleon Spor
NABAIJI Girls' Swimming Swimsuit Top Kamyleon - Sea Black
NABAIJI Girls' Swimming Swimsuit Top Kamyleon - Wave blue
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NABAIJI Girl’s swimming bikini top Kamyleon Dino
Rate: 4.6 stars, 254 votes
4 colors
£4.99£8.99
OLAIAN Girl's scarf swimsuit top 100 coral
OLAIAN GIRL'S SCARF SWIMSUIT TOP 100 PINK
OLAIAN GIRLS’ SWIMSUIT TOP WITH COLLAR 100 - BLACK
OLAIAN Girl's scarf swimsuit top - 100 Tami coral
OLAIAN GIRL'S HALTER NECK SWIMSUIT 100 COCO TURQUOISE
OLAIAN Girl's swimsuit halterneck top - 100 Tami palm purple
OLAIAN Girl's scarf swimsuit top - 100 Tami tropical party pink
Gallery item 1 out of 7
OLAIAN Girl's scarf swimsuit top 100 coral
Rate: 4.6 stars, 193 votes
7 colors
£3.99£7.99
NABAIJI Girls' Swimsuit Bottoms Kamyleon Dino
NABAIJI Girl’s swimming bikini bottoms Kamyleon Alg blue
NABAIJI Girls' Swimsuit Bottoms Kamyleon Spor
NABAIJI Girls' Swimming Bottoms Top Kamyleon - Sea Black
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NABAIJI Girls' Swimsuit Bottoms Kamyleon Dino
Rate: 4.6 stars, 252 votes
4 colors
£4.99£8.99
OLAIAN ZELI girls' swimsuit bottoms 100 coral
OLAIAN GIRL'S ZELI SWIMSUIT BOTTOMS 100 PINK
OLAIAN GIRL'S SWIMSUIT BOTTOMS ZELI 100 BLACK
OLAIAN Girls' swimsuit bottoms - 100 Zeli coral
OLAIAN Girl's swimsuit bottoms - 100 Zeli tropical party pink
OLAIAN GIRL'S ZELI SWIMSUIT BOTTOMS 100 COCO TURQUOISE
OLAIAN Girl's swimsuit bottoms - 100 Zeli palm violet
Gallery item 1 out of 7
OLAIAN ZELI girls' swimsuit bottoms 100 coral
Rate: 4.6 stars, 276 votes
7 colors
£3.99£6.99
OLAIAN GIRL'S LANA SWIMSUIT CROP TOP 500 GLORY TURQUOISE
OLAIAN GIRL'S LANA SWIMSUIT CROP TOP 500 GLORY WHITE
OLAIAN Girl's swimsuit crop top - 500 Lana rainbow stripes turquoise
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OLAIAN GIRL'S LANA SWIMSUIT CROP TOP 500 GLORY TURQUOISE
Rate: 4.7 stars, 29 votes
3 colors
£5.99£12.99
OLAIAN Girl's textured swimsuit bra top - 500 Lana orchid purple
OLAIAN Girl's textured swimsuit crop top - 500 Lana chequered black
Gallery item 1 out of 2
OLAIAN Girl's textured swimsuit bra top - 500 Lana orchid purple
2 colors
£10.99
OLAIAN GIRL'S SURF SWIMSUIT CROP TOP BAHA 900 - BLACK
OLAIAN GIRL'S SURF SWIMSUIT CROP TOP BAHA 900 - GREEN
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OLAIAN GIRL'S SURF SWIMSUIT CROP TOP BAHA 900 - BLACK
Rate: 4.6 stars, 545 votes
2 colors
£7.99£14.99
OLAIAN GIRL'S SURF SWIMSUIT TOP CORAL STRIPED 500
OLAIAN GIRL'S SURF SWIMSUIT TOP BONDI 500 BLUE
OLAIAN GIRL'S SURF SWIMSUIT TRIANGLE TOP BONDI 500 GREEN
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OLAIAN GIRL'S SURF SWIMSUIT TOP CORAL STRIPED 500
Rate: 4.4 stars, 516 votes
3 colors
£3.99£9.99
NABAIJI Girls’ Bikini Bottoms Vega Black
NABAIJI Girls’ Bikini Bottoms Vega Navy
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NABAIJI Girls’ Bikini Bottoms Vega Black
Rate: 4.5 stars, 123 votes
2 colors
£2.99£5.99
OLAIAN Two-piece swimsuit BONI 100 - TURQUOISE
OLAIAN Two-piece swimsuit JUNE BONI 100
OLAIAN Two-piece swimsuit BONI 100 - PINK
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OLAIAN Two-piece swimsuit BONI 100 - TURQUOISE
Rate: 4.5 stars, 421 votes
3 colors
£10.99
Was £12.99
OLAIAN Girls’ bandeau bikini top 100 - Khaki
OLAIAN Girl's bandeau top 100 white
OLAIAN GIRL'S BANDEAU SWIMSUIT TOP 100 YELLOW
OLAIAN GIRL'S BANDEAU SWIMSUIT TOP 100 LAGOON BLUE
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OLAIAN Girls’ bandeau bikini top 100 - Khaki
Rate: 4.5 stars, 62 votes
4 colors
£3.99£6.99
OLAIAN GIRL'S TANIA SWIMSUIT BOTTOMS 100 YELLOW
OLAIAN GIRL'S TANIA SWIMSUIT BOTTOMS 100 YELLOW
OLAIAN TANIA girl's swimsuit bottoms 100 white
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OLAIAN GIRL'S TANIA SWIMSUIT BOTTOMS 100 YELLOW
Rate: 4.6 stars, 190 votes
3 colors
£3.99£6.99
OLAIAN Girl's triangle swimsuit top TEA 100 khaki
OLAIAN GIRLS’ SWIMSUIT TRIANGLE TOP TEA 100 LAGOON BLUE
OLAIAN GIRL'S TRIANGLE SWIMSUIT TOP TEA 100 WHITE
OLAIAN GIRLS’ SWIMSUIT TRIANGLE TOP TEA 100 YELLOW
Gallery item 1 out of 4
OLAIAN Girl's triangle swimsuit top TEA 100 khaki
Rate: 4.7 stars, 134 votes
4 colors
£3.99£6.99
NABAIJI Girls’ 2-Piece Swimming Swimsuit Top Lila Ama - White
NABAIJI Girls’ 2-Piece Swimming Swimsuit Top Lila Blue
NABAIJI Girl's swimsuit top for two-piece swimsuit Lila Marg red
NABAIJI Girls’ 2-Piece Swimsuit Top Lila Pantai - White
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NABAIJI Girls’ 2-Piece Swimming Swimsuit Top Lila Ama - White
Rate: 4.7 stars, 211 votes
4 colors
£4.99£7.99
OLAIAN Girl's bra swimsuit top 100 coral
OLAIAN GIRL'S SWIMSUIT CROP TOP 100 COCO TURQUOISE
OLAIAN GIRLS’ SWIMSUIT CROP TOP 100 PINK
OLAIAN GIRLS’ SWIMSUIT CROP TOP 100 BLACK
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OLAIAN Girl's bra swimsuit top 100 coral
Rate: 4.5 stars, 129 votes
4 colors
£3.99£6.99
OLAIAN GIRL'S SURF Swimsuit bottoms MALOU 500 - TURQUOISE
OLAIAN GIRL'S SURF Swimsuit bottoms MALOU 500 - TURQUOISE
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OLAIAN GIRL'S SURF Swimsuit bottoms MALOU 500 - TURQUOISE
Rate: 4.5 stars, 398 votes
2 colors
£3.99£7.99
OLAIAN GIRL'S HIGH-WAISTED BAO SWIMSUIT BOTTOMS 500 BLUR
OLAIAN GIRL'S HIGH-WAISTED BAO SWIMSUIT BOTTOMS 500 BLUE
OLAIAN Girl's swimsuit bottoms - 500 Bao rainbow stripes turquoise
Gallery item 1 out of 3
OLAIAN GIRL'S HIGH-WAISTED BAO SWIMSUIT BOTTOMS 500 BLUR
Rate: 4.6 stars, 26 votes
3 colors
£7.99£12.99
ADIDAS Performance Big Bars Bikini Kids
ADIDAS Performance Big Bars Bikini Kids
Sold and shipped by adidas (UK) Limited (ADIDAS UK)
£23.00
OLAIAN GIRL'S SWIMSUIT TOP SURF TRIANGLE BETTY 500 TURQUOISE PINK
OLAIAN BETTY 500 SURF GIRL'S SWIMSUIT TOP AND TRIANGLE TURQUOISE
OLAIAN GIRL'S SURF SWIMSUIT TRIANGLE TOP BETTY 500 BLUE
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OLAIAN GIRL'S SWIMSUIT TOP SURF TRIANGLE BETTY 500 TURQUOISE PINK
Rate: 4.6 stars, 405 votes
3 colors
£4.99£9.99
OLAIAN GIRLS’ two-piece SURFING swimsuit BIKINI TOP BALI 100 PINK
OLAIAN GIRLS’ two-piece SURFING swimsuit BIKINI TOP BALI 100 - BLUE
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OLAIAN GIRLS’ two-piece SURFING swimsuit BIKINI TOP BALI 100 PINK
Rate: 4.6 stars, 737 votes
2 colors
£5.99
Was £6.99
ADIDAS 3-Stripes Bikini
ADIDAS 3-Stripes Bikini
Gallery item 1 out of 2
ADIDAS 3-Stripes Bikini
Rate: 4.0 stars, 3 votes
2 colors
Sold and shipped by adidas (UK) Limited (ADIDAS UK)
£25.00
REGATTA Hosanna Girls' Swim Top - Fusion Pink
REGATTA Hosanna Girls' Swim Top - Fusion Pink
Sold and shipped by Regatta Ltd UK
£10.95£20.00
REGATTA Peppa Pig Kids Swim Rash Suit Set - Cool Aqua White
REGATTA Peppa Pig Kids Swim Rash Suit Set - Cool Aqua White
Sold and shipped by Regatta Ltd UK
£13.95£35.00
REGATTA Peppa Pig Kids Swim Rash Suit Set - Navy White
REGATTA Peppa Pig Kids Swim Rash Suit Set - Navy White
Sold and shipped by Regatta Ltd UK
£14.00£35.00
REGATTA Peppa Pig Kids Swim Rash Suit Set - Aruba Blue White
REGATTA Peppa Pig Kids Swim Rash Suit Set - Aruba Blue White
Sold and shipped by Regatta Ltd UK
£13.95£35.00
REGATTA Hosanna Girls' Swim Shorts - Fusion Pink
REGATTA Hosanna Girls' Swim Shorts - Fusion Pink
Sold and shipped by Regatta Ltd UK
£11.95£20.00
REGATTA Kids' Hoku Swim Top
REGATTA Kids' Hoku Swim Top
Sold and shipped by Regatta Ltd UK
£11.65£26.00
REGATTA Hosanna Girls' Swim Top - Aruba Blue
REGATTA Hosanna Girls' Swim Top - Aruba Blue
Sold and shipped by Regatta Ltd UK
£10.95£20.00
OLAIAN REFURBISHED GIRLS BANDEAU SWIMSUIT TOP 100 LAGOON BLUE-C GRADE
OLAIAN REFURBISHED GIRLS BANDEAU SWIMSUIT TOP 100 LAGOON BLUE-C GRADE
Sold and shipped by Decathlon UK - Second Life
£3.49£4.99
OLAIAN MAEVA 500 SURF GIRL'S SWIMSUIT BRIEFS BLUE
OLAIAN GIRL'S SURF SWIMSUIT BOTTOM CORAL STRIPED BLACK
Gallery item 1 out of 2
OLAIAN MAEVA 500 SURF GIRL'S SWIMSUIT BRIEFS BLUE
Rate: 4.4 stars, 382 votes
2 colors
£3.99£5.99
4.4/5 based on 11647 reviews collected online and in stores

Girls Bikinis 

Selecting the right bikini top is crucial for comfort and support. Our collection of girls bikini topsare designed with this in mind, providing various styles that cater to different preferences. From classic triangle designs to more contemporary styles, there's something to suit every taste.Our girls bikinis also come with a variety of different functionality, whether it’s resistance to the impact of waves thanks to the high waist and wide elastic waistbands or its quick-dry fabric so you can warm up on the poolside quickly and comfortably. 

Don’t forget about coordinating your perfect top with the right bottom. Our girls bikini bottoms cater to different fits and coverage levels, so she feels confident whether she's diving into the pool or building sandcastles. The elasticated waistbands ensure a snug fit, and the varied designs allow her to mix and match for her unique style.

Get your Set

For those who prefer coordinated swimwear, our girls bikini setsoffer the perfect fit. Dive into our girls bikinis collection today. Whether it’s for a summer holiday or regular pool visits, our range has something for every young swimmer.