Swimwear & Beachwear

Sun, sand and swimsuits for little ones
545 items
OLAIAN BOY'S SURFING 1.5 MM NEOPRENE SHORTY WETSUIT 500 BLUE BLACK
OLAIAN BOY'S SURFING 1.5 MM NEOPRENE SHORTY WETSUIT 500 BLUE BLACK
Rate: 4.5 stars, 12 votes
£34.99
OLAIAN GIRL'S ONE-PIECE TRIANGLE SWIMSUIT 500 ORANGE
OLAIAN GIRL'S ONE-PIECE TRIANGLE SWIMSUIT 500 FUCHSIA
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OLAIAN GIRL'S ONE-PIECE TRIANGLE SWIMSUIT 500 ORANGE
Rate: 4.7 stars, 94 votes
2 colors
£9.99£15.99
OLAIAN swim shorts 550 - blue
OLAIAN swim shorts 550 - purple
OLAIAN swim shorts 550 black green
OLAIAN Boy's swim shorts - 550 Softgeo blue
OLAIAN Boy's swim shorts - 550 Canopy orange
OLAIAN Swim shorts 550 offshore green
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OLAIAN swim shorts 550 - blue
Rate: 4.6 stars, 221 votes
6 colors
£9.99£14.99
NABAIJI Lila Ama 100 Girls Swimming One-Piece Swimsuit/Skirt - White
NABAIJI Lila Navy 100 Girls Swimming One-Piece Swimsuit/Skirt - Lily navy
NABAIJI Lila All Omi 100 Girls Swimming One-Piece Swimsuit/Skirt - Navy
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NABAIJI Lila Ama 100 Girls Swimming One-Piece Swimsuit/Skirt - White
Rate: 4.7 stars, 574 votes
3 colors
£17.99
TRIBORD Kid's 2 mm overknee NEOPRENE WETSUIT
TRIBORD Kid's 2 mm overknee NEOPRENE WETSUIT
Rate: 4.5 stars, 8 votes
£39.99£59.99
NABAIJI Boys’ long sleeve shorty 100 - blue
NABAIJI Boys’ long sleeve shorty 100 - blue
Rate: 4.6 stars, 133 votes
£15.99
OLAIAN Girl's anti-UV short-sleeved T-shirt - 500 Palm white
OLAIAN Girl's anti-UV short-sleeved T-shirt - 500 Palm white
Rate: 4.7 stars, 122 votes
£12.99
OLAIAN Boy's swim shorts - 100 sign blue green
OLAIAN Boy's swim shorts - 100 banana blue
OLAIAN Boys' swim shorts -100 shadow red
OLAIAN Boy's swim shorts - 100 shadow green
OLAIAN Boy's swim shorts - 100 Tokyo sun turquoise
OLAIAN Boy's swim shorts - 100 happysurf red
OLAIAN Boy's swim shorts - 100 Sign orange
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OLAIAN Boy's swim shorts - 100 sign blue green
7 colors
£8.99
NABAIJI KAMYLEON 500 Girl's Swimsuit - Dino
NABAIJI KAMYLEON 500 Girl's Swimsuit - All Game Pink
NABAIJI KAMYLEON 500 Girl's Swimsuit - Star Black / Yellow
NABAIJI KAMYLEON 500 Girl's Swimsuit - All Camo Yellow
NABAIJI KAMYLEON 500 Girl's Swimsuit - Text blue / pink
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NABAIJI KAMYLEON 500 Girl's Swimsuit - Dino
Rate: 4.3 stars, 953 votes
5 colors
£11.99£15.99
NABAIJI Girls' One-piece Swimsuit Kamyli Spor
NABAIJI Girls' One-piece Swimsuit Kamily East
NABAIJI Girls One-Piece Swimsuit Kamyli all gradi blue
NABAIJI Girl's 1-Piece Swimsuit KAMYLI BLACK GOLD
NABAIJI Girls One-Piece Swimsuit Kamyli all game red
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NABAIJI Girls' One-piece Swimsuit Kamyli Spor
Rate: 4.7 stars, 130 votes
5 colors
£9.99£16.99
NABAIJI VEGA 100 Girl's One-Piece Swimsuit - Pink
NABAIJI VEGA 100 Girl's One-Piece Swimsuit - Pink
Rate: 4.6 stars, 613 votes
£9.99
OLAIAN 2-piece swimsuit TAMARA 100 black
OLAIAN 2-piece swimsuit TAMARA 100 - coral
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OLAIAN 2-piece swimsuit TAMARA 100 black
Rate: 4.6 stars, 407 votes
2 colors
£4.99£6.99
NABAIJI Lila 100 Girl's Swimsuit - Bird Navy
NABAIJI Lila 100 Girl's Swimsuit - Marg Lilac
NABAIJI Lila 100 Girl's Swimsuit - yellow
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NABAIJI Lila 100 Girl's Swimsuit - Bird Navy
Rate: 4.6 stars, 470 votes
3 colors
£14.99
OLAIAN SWIM SHORTS BOARDSHORT 900 - GREEN
OLAIAN BOARDSHORT SWIMMING SHORTS 900 BLACK
OLAIAN SWIM SHORTS BOARDSHORT 900 BLUE
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OLAIAN SWIM SHORTS BOARDSHORT 900 - GREEN
Rate: 4.3 stars, 65 votes
3 colors
£14.99£22.99
OLAIAN GIRL'S ONE-PIECE CALYSTA SWIMSUIT 900 BLACK GOLD
OLAIAN Girl's 1-piece swimsuit - 900 Calysta shiso black
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OLAIAN GIRL'S ONE-PIECE CALYSTA SWIMSUIT 900 BLACK GOLD
2 colors
£19.99
NABAIJI Baby Short-Sleeved Anti-UV T-shirt - Blue
NABAIJI Baby UV-protection Short Sleeve T-Shirt - Pink
NABAIJI Baby Short-Sleeved Anti-UV T-shirt Light Blue
NABAIJI Baby UV-protection short sleeve T-shirt - Coral
NABAIJI Baby UV-Protection Short Sleeve T-Shirt - Light Green
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NABAIJI Baby Short-Sleeved Anti-UV T-shirt - Blue
Rate: 4.8 stars, 368 votes
5 colors
£5.99£7.99
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 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 Boy's swim shorts - 900 blue
OLAIAN Boy's swim shorts - 900 black and blue stripes
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OLAIAN Boy's swim shorts - 900 blue
2 colors
£24.99
OLAIAN GIRL'S Swimsuit bottom JUNE CORAL
OLAIAN LITTLE GIRL'S Swimsuit bottoms MADI 100 - PINK
OLAIAN LITTLE GIRL'S Swimsuit bottoms MADI 100 - PINK
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OLAIAN GIRL'S Swimsuit bottom JUNE CORAL
Rate: 4.3 stars, 269 votes
3 colors
£10.99
Was £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 Boy's surfing anti-UV short-sleeved T-shirt - 500 - blue
OLAIAN Boy's short-sleeved anti-UV T-shirt - 500 Camo black blue
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OLAIAN Boy's surfing anti-UV short-sleeved T-shirt - 500 - blue
2 colors
£12.99
NABAIJI Girl's Vega + Swimming one-piece swimsuit navy herringbone
NABAIJI Girls' 1-piece swimsuit Vega+ navy
NABAIJI Girls' 1-piece swimsuit Vega - Purple, WA Swimmers
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NABAIJI Girl's Vega + Swimming one-piece swimsuit navy herringbone
Rate: 4.6 stars, 257 votes
3 colors
£14.99
OLAIAN Junior Neoprene Top Surf 900 1.5 mm - black
OLAIAN Junior Neoprene Top Surf 900 1.5 mm - black
Rate: 4.4 stars, 5 votes
£27.99£39.99
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 Baby Short-Sleeved Anti-UV T-shirt - with Flower Print
NABAIJI Baby Short-Sleeved Anti-UV T-shirt - with Flower Print
Rate: 4.8 stars, 41 votes
£9.99
NABAIJI Girl's Lila Cobe 1-piece swimsuit red
NABAIJI Girl's Lila Cobe 1-piece swimsuit red
Rate: 4.0 stars, 12 votes
£14.99
OLAIAN Boy's long-sleeved anti-UV T-shirt - 500 Vortex black
OLAIAN Boy's long-sleeved anti-UV T-shirt - 500 grey green
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OLAIAN Boy's long-sleeved anti-UV T-shirt - 500 Vortex black
2 colors
£14.99
NABAIJI Boys’ Long Swimming Trunks 100 All Chin Black
NABAIJI Boy's Swim Shorts - 100 Long - Pool Navy Blue / Ochre
NABAIJI Boys’ Swimming Shorts 100 Long - All-over Palm Blue
NABAIJI Boys’ Long Swimming Trunks 100 Palmi Black
NABAIJI Boys' long swimming swim shorts 100 - tex blue
NABAIJI Boys’ Swimming Shorts - 100 Long - KMO Yellow
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NABAIJI Boys’ Long Swimming Trunks 100 All Chin Black
Rate: 4.7 stars, 374 votes
6 colors
£9.99£12.99
OLAIAN 1 mm Neoprene Surfing Top with 2 mm Built-In Hood
OLAIAN 1 mm Neoprene Surfing Top with 2 mm Built-In Hood
Rate: 4.3 stars, 81 votes
£39.99
Was £44.99
SUBEA Kids' shorty 2 mm neoprene - navy blue
SUBEA Kids' shorty 2 mm neoprene - navy blue
Rate: 4.4 stars, 553 votes
£24.99
NABAIJI VEGA Shorty 100 Girl's Swimsuit - Turquoise Blue
NABAIJI VEGA Shorty 100 Girl's Swimsuit - Turquoise Blue
Rate: 4.6 stars, 699 votes
£8.99£10.99
OLAIAN GIRL'S SURF Swimsuit bottoms MAS 900 - BLACK
OLAIAN GIRL'S SURF Swimsuit bottoms TIARE MAS 900
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OLAIAN GIRL'S SURF Swimsuit bottoms MAS 900 - BLACK
Rate: 4.6 stars, 432 votes
2 colors
£10.99
OLAIAN Girl's triangle swimsuit top TEA 100 khaki
OLAIAN GIRLS’ SWIMSUIT TRIANGLE TOP TEA 100 LAGOON BLUE
OLAIAN GIRLS’ SWIMSUIT TRIANGLE TOP TEA 100 YELLOW
OLAIAN GIRL'S TRIANGLE SWIMSUIT TOP TEA 100 WHITE
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OLAIAN Girl's triangle swimsuit top TEA 100 khaki
Rate: 4.7 stars, 134 votes
4 colors
£3.99£6.99
OLAIAN 3/2 junior wetsuit front zip 900 - black khaki
OLAIAN 3/2 junior wetsuit front zip 900 - black khaki
Rate: 4.7 stars, 3 votes
£129.99
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 ONE-PIECE SWIMSUIT 500 FUCHSIA
OLAIAN GIRL'S ONE-PIECE SWIMSUIT 500 PURPLE
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OLAIAN GIRL'S ONE-PIECE SWIMSUIT 500 FUCHSIA
Rate: 4.8 stars, 40 votes
2 colors
£9.99£15.99
OLAIAN Black adventure swim shorts
OLAIAN Swimming Trunks blue yellow
OLAIAN SWIM SHORTS - KHAKI
OLAIAN Swim shorts - sunset
OLAIAN Swimming trunks sky blue navy blue
OLAIAN Swim Shorts - Bamboo Navy Blue
OLAIAN Boy's swim shorts - 100 surfcanvas green
OLAIAN Swim Shorts - Khaki
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OLAIAN Black adventure swim shorts
Rate: 4.7 stars, 627 votes
8 colors
£6.49£11.99
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
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
4.4/5 based on 37105 reviews collected online and in stores

Splish, splash!

Whether you're planning a summer holiday, booking swimming lessons for your toddler or just planning some fun family splash time at the local pool, our kids' swimwear range has everything you need. From pretty swimming costumes to practical swim shorts, we stock a wide range of swimwear for boys, girls and babies of all ages.

Each item in our range is designed to fit your child perfectly, offer excellent value for money and ensure they can bob about and practice strokes in total comfort. Shop now at Decathlon.