Swimwear & Beachwear

Sun, sand and swimsuits for little ones
531 items
OLAIAN Boy's swim shorts - 100 sky blue
OLAIAN Boy's swim shorts -100 navy blue
Gallery item 1 out of 2
OLAIAN Boy's swim shorts - 100 sky blue
2 colors
£5.99
NABAIJI Girls’ Basic 1-piece Swimsuit purple
NABAIJI Girls’ Basic 1-piece Swimsuit Luna Blue
Gallery item 1 out of 2
NABAIJI Girls’ Basic 1-piece Swimsuit purple
Rate: 4.7 stars, 1082 votes
2 colors
£4.99
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, 568 votes
3 colors
£17.99
OLAIAN Boys' Long-sleeved NEO Sun Top block neon orange
OLAIAN Boy's NEO sun top long sleeve black khaki
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OLAIAN Boys' Long-sleeved NEO Sun Top block neon orange
Rate: 4.7 stars, 40 votes
2 colors
£11.99£17.99
NABAIJI KAMYLEON 500 Girl's Swimsuit - Dino
NABAIJI KAMYLEON 500 Girl's Swimsuit - Star Black / Yellow
NABAIJI KAMYLEON 500 Girl's Swimsuit - All Game Pink
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, 950 votes
5 colors
£11.99£15.99
NABAIJI Boy's Swimsuit 100 Long Sleeves & Long Legs BANA - Green UV
NABAIJI Boy's Swimsuit 100 Long Sleeves & Long Legs BANA - Green UV
£19.99
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: 4.7 stars, 39 votes
2 colors
£9.99£15.99
NABAIJI GIRLS' 1-PIECE SWIMSUIT KAMYLEON BLACK
NABAIJI GIRLS' 1-PIECE SWIMSUIT KAMYLEON BLACK
£17.99
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 SWIM SHORTS BOARDSHORT 900 - GREEN
OLAIAN SWIM SHORTS BOARDSHORT 900 BLUE
OLAIAN BOARDSHORT SWIMMING SHORTS 900 BLACK
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OLAIAN SWIM SHORTS BOARDSHORT 900 - GREEN
Rate: 4.3 stars, 65 votes
3 colors
£14.99£22.99
NABAIJI KAMYIE + 500 Girls' one-piece swimsuit - Pink
NABAIJI KAMYIE + 500 Girls' one-piece swimsuit - Blue
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NABAIJI KAMYIE + 500 Girls' one-piece swimsuit - Pink
Rate: 4.6 stars, 279 votes
2 colors
£10.99
OLAIAN Two-piece swimsuit JUNE BONI 100
OLAIAN Two-piece swimsuit BONI 100 - TURQUOISE
OLAIAN Two-piece swimsuit BONI 100 - PINK
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OLAIAN Two-piece swimsuit JUNE BONI 100
Rate: 4.5 stars, 419 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, 39 votes
3 colors
£5.99£12.99
OLAIAN Boy's short-sleeved anti-UV T-shirt - 500 Camo black blue
OLAIAN Boy's surfing anti-UV short-sleeved T-shirt - 500 - blue
Gallery item 1 out of 2
OLAIAN Boy's short-sleeved anti-UV T-shirt - 500 Camo black blue
2 colors
£12.99
OLAIAN GIRL'S SURFING 1.5 MM NEOPRENE SHORTY WETSUIT 500 TIARE BLACK
OLAIAN GIRL'S SURFING 1.5 MM NEOPRENE SHORTY WETSUIT 500 TIARE BLACK
Rate: 4.8 stars, 5 votes
£39.99
OLAIAN Boys' swim shorts -100 shadow red
OLAIAN Boy's swim shorts - 100 sign blue green
OLAIAN Boy's swim shorts - 100 banana blue
OLAIAN Boy's swim shorts - 100 happysurf red
OLAIAN Boy's swim shorts - 100 Sign orange
OLAIAN Boy's swim shorts - 100 Tokyo sun turquoise
OLAIAN Boy's swim shorts - 100 shadow green
Gallery item 1 out of 7
OLAIAN Boys' swim shorts -100 shadow red
7 colors
£8.99
OLAIAN GIRL'S ONE-PIECE SWIMSUIT 100 BLACK
OLAIAN GIRL'S ONE-PIECE SWIMSUIT 100 CORAL
OLAIAN GIRL'S ONE-PIECE SWIMSUIT 100 DAISIES AZURE BLUE
OLAIAN GIRL'S MIXLIFE ONE-PIECE SWIMSUIT 100 YELLOW
OLAIAN GIRL'S ONE-PIECE SWIMSUIT 100 COCO TURQUOISE
OLAIAN One-piece swimsuit 100 - turquoise
OLAIAN Girl's 1-piece swimsuit - 100 Hiloe tropical party pink
Gallery item 1 out of 7
OLAIAN GIRL'S ONE-PIECE SWIMSUIT 100 BLACK
Rate: 4.4 stars, 983 votes
7 colors
£6.49£9.99
NABAIJI Girl's Lila Cobe 1-piece swimsuit red
NABAIJI Girl's Lila Cobe 1-piece swimsuit red
Rate: 4.1 stars, 11 votes
£14.99
OLAIAN BOY'S SWIMMING SHORTS PALMITOS BLUE
OLAIAN boy's swimming shorts - black
Gallery item 1 out of 2
OLAIAN BOY'S SWIMMING SHORTS PALMITOS BLUE
Rate: 4.7 stars, 63 votes
2 colors
£7.99£10.99
NABAIJI Girls' 1-piece Swimsuit VEGA PANTAI KHAKI
NABAIJI Girls' 1-piece Swimsuit VEGA PANTAI KHAKI
£10.99
NABAIJI Boys’ long sleeve shorty 100 - blue
NABAIJI Boys’ long sleeve shorty 100 - blue
Rate: 4.6 stars, 133 votes
£15.99
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, 405 votes
2 colors
£4.99£6.99
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 Vega + Swimming one-piece swimsuit navy herringbone
NABAIJI Girls' 1-piece swimsuit Vega+ navy
NABAIJI Girls' 1-piece swimsuit Vega - Purple, WA Swimmers
Gallery item 1 out of 3
NABAIJI Girl's Vega + Swimming one-piece swimsuit navy herringbone
Rate: 4.6 stars, 255 votes
3 colors
£14.99
OLAIAN swim shorts 500 - beige
OLAIAN swim shorts 500 black pink
OLAIAN SWIM SHORTS 500 BLACK GREEN
OLAIAN SWIMMING WAVYWAVE SHORTS 500 BLUE
OLAIAN swim shorts 500 multicoloured
OLAIAN SWIM SHORTS 500 KHAKI
OLAIAN SWIMMING SHORTS 500 - BLUE/BLACK
OLAIAN SWIMMING SHORTS 500 - BLUE/CAMO
OLAIAN Boy's swim shorts - 500 brush lines blue
OLAIAN Boy's swim shorts - 500 Memphis green
OLAIAN Boy's swim shorts - 500 zebra red purple
OLAIAN Boys' swim shorts - 500 Palmsand black
OLAIAN SWIM SHORTS 500 ORANGE
OLAIAN SWIM SHORTS 500 BLUE RED
OLAIAN SWIM SHORTS 500 DARK BLUE
Gallery item 1 out of 15
OLAIAN swim shorts 500 - beige
Rate: 4.5 stars, 381 votes
15 colors
£7.99£15.99
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
Gallery item 1 out of 5
NABAIJI Baby Short-Sleeved Anti-UV T-shirt - Blue
Rate: 4.8 stars, 365 votes
5 colors
£5.99£7.99
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 Boy's anti-UV long-sleeved T-shirt - 900 black
OLAIAN Boy's anti-UV long-sleeved T-shirt - 900 black
£19.99
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, 19 votes
3 colors
£9.99£14.99
OLAIAN Kids' Steamer Full Wetsuit 100 4/3
OLAIAN Kids' Steamer Full Wetsuit 100 4/3
Rate: 3.3 stars, 3 votes
£54.99
NABAIJI VEGA 100 Girl's One-Piece Swimsuit - Pink
NABAIJI VEGA 100 Girl's One-Piece Swimsuit - Pink
Rate: 4.6 stars, 609 votes
£9.99
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
Gallery item 1 out of 3
OLAIAN GIRL'S SURFING SWIMSUIT TRIANGLE TOP LIZY 500 BLACK
Rate: 4.5 stars, 41 votes
3 colors
£8.99£12.99
NABAIJI BOYS' SWIMSUIT COMBSWIM 100 - MASK BLUE
NABAIJI BOYS' SWIMSUIT COMBSWIM 100 - MASK BLUE
Rate: 4.4 stars, 288 votes
£19.99
OLAIAN Swim Shorts - sky blue
OLAIAN Swim Shorts - navy blue
OLAIAN Swim Shorts - Turquoise blue
Gallery item 1 out of 3
OLAIAN Swim Shorts - sky blue
Rate: 4.7 stars, 1222 votes
3 colors
£3.19£4.99
OLAIAN GIRL'S SURF Swimsuit bottoms MALOU 500 - TURQUOISE
OLAIAN GIRL'S SURF Swimsuit bottoms MALOU 500 - TURQUOISE
Gallery item 1 out of 2
OLAIAN GIRL'S SURF Swimsuit bottoms MALOU 500 - TURQUOISE
Rate: 4.5 stars, 398 votes
2 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
Gallery item 1 out of 4
NABAIJI Girls' Swimsuit Bottoms Kamyleon Dino
Rate: 4.6 stars, 252 votes
4 colors
£4.99£8.99
OLAIAN Boy's long-sleeved anti-UV T-shirt - 500 Vortex black
OLAIAN Boy's long-sleeved anti-UV T-shirt - 500 Vortex black
£14.99
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: 4.6 stars, 132 votes
4 colors
£3.99£6.99
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
Gallery item 1 out of 4
NABAIJI Girl’s swimming bikini top Kamyleon Dino
Rate: 4.6 stars, 253 votes
4 colors
£4.99£8.99
NABAIJI Lila 100 Girl's Swimsuit - Bird Navy
NABAIJI Lila 100 Girl's Swimsuit - Marg Lilac
NABAIJI Lila 100 Girl's Swimsuit - yellow
Gallery item 1 out of 3
NABAIJI Lila 100 Girl's Swimsuit - Bird Navy
Rate: 4.6 stars, 468 votes
3 colors
£14.99
4.4/5 based on 36916 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.