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  • Top Rated
    $13.59 with code SHOP20 Promo details.
    $16.99 sale $22.00 Reg.

    Boys 4-20 ZeroXposur Surfer Swim Trunks

  • $19.99 with code SHOP20 Promo details.
    $24.99 sale $32.00 Reg.

    Boys 4-20 ZeroXposur Marine Sun Top & Swim Trunks Set

  • $13.59 with code SHOP20 Promo details.
    $16.99 sale $22.00 Reg.

    Boys 4-20 ZeroXposur Boardwalk Shorties Swim Trunks

  • $13.99 with code SHOP20 Promo details.
    $17.49 sale $24.99 Reg.

    Baby & Toddler Boy Jumping Beans® Long Sleeve Rashguard & Swim Trunks Set

  • $11.99 with code SHOP20 Promo details.
    $14.99 sale $22.00 Reg.

    Boys 4-20 ZeroXposur Graphic Sun Protection Top

    (4)
  • $18.24 - $19.20 with code SHOP20 Promo details.
    $22.80 - $24.00 sale $38.00 - $40.00 Reg.

    Boys 4-20 Hurley First Light Ombre Swim Boardshorts

  • $22.36 with code SHOP20 Promo details.
    $27.95 Reg.

    Boys 2-20 Lands' End Chlorine Resistant Short Sleeve UPF 50 Swim Top

  • $20.61 with code SHOP20 Promo details.
    $25.77 sale $42.95 Reg.

    Boys 6-16 Lands' End Hydroliner Swim Trunks

    (1)
  • Top Rated
    $20.16 - $23.04 with code SHOP20 Promo details.
    $25.20 - $28.80 sale $42.00 - $48.00 Reg.

    Boys 4-16 Hurley Ape H20-DRI UPF Top & Trunks 2 pc Swim Set

  • $19.99 with code SHOP20 Promo details.
    $24.99 sale $32.00 Reg.

    Boys 4-6 ZeroXposur Deep End Sun Top & Swim Shorts Set

  • $20.16 - $22.08 with code SHOP20 Promo details.
    $25.20 - $27.60 sale $42.00 - $46.00 Reg.

    Boys 4-20 Pokemon Pikachu 2 pc Rashguard & Swim Trunks Set

    (2)
  • $13.59 with code SHOP20 Promo details.
    $16.99 sale $22.00 Reg.

    Boys 4-20 ZeroXposur Guard Swim Shorts

    (6)
  • $23.99 with code SHOP20 Promo details.
    $29.99 Orig.

    Disney's Stitch Boys Swim Short

    (3)
  • $10.56 with code SHOP20 Promo details.
    $13.20 sale $22.00 Reg.

    Boys 4-20 Sonic the Hedgehog Checkered Run Swim Trunks

    (5)
  • Top Rated
    $20.16 with code SHOP20 Promo details.
    $25.20 sale $42.00 Reg.

    Boys 4-7 Hurley UPF H20-DRI Lifeguard Top & Swim Trunks 2 pc Set

  • $14.40 with code SHOP20 Promo details.
    $18.00 sale $30.00 Orig.

    Boys 4-12 Little Co. by Lauren Conrad Swim Trunks

    (4)
  • $18.24 - $19.20 with code SHOP20 Promo details.
    $22.80 - $24.00 sale $38.00 - $40.00 Reg.

    Boys 4-20 Hurley Squiggle Ombre Swim Boardshorts

  • $31.20 sale
    $52.00 Reg.

    Boys Nike Little Kids' Long-Sleeve Hydroguard and Volley Shorts Set

  • $24.00 sale
    $40.00 Reg.

    Boys 8-20 Under Armour Textured Logo Swimsuit

    (2)
  • $20.16 - $22.08 with code SHOP20 Promo details.
    $25.20 - $27.60 sale $42.00 - $46.00 Reg.

    Boys 4-20 Sonic the Hedgehog "Let's Roll" 2 pc Rashguard & Swim Trunks Set

    (4)
  • $13.59 with code SHOP20 Promo details.
    $16.99 sale $22.00 Reg.

    Boys 4-20 ZeroXposur Epic Swim Shorts

    (3)
  • $13.59 with code SHOP20 Promo details.
    $16.99 sale $22.00 Reg.

    Boys 4-20 ZeroXposur Offshore Swim Shorts

    (3)
  • $24.00 sale
    $40.00 Reg.

    Boys 8-20 Under Armour Tipped Logo Volley Swim Trunks

  • $17.28 - $18.24 with code SHOP20 Promo details.
    $21.60 - $22.80 sale $36.00 - $38.00 Reg.

    Boys 4-20 Hurley Flamingo Pull-On Swim Trunks

  • $13.44 with code SHOP20 Promo details.
    $16.80 sale $28.00 Orig.

    Baby & Toddler Boy Little Co. by Lauren Conrad Swim Trunks

    (8)
  • Top Rated
    $17.28 - $18.24 with code SHOP20 Promo details.
    $21.60 - $22.80 sale $36.00 - $38.00 Reg.

    Boys 4-20 Hurley Distorted Palm Pull-On Swim Trunks

  • $8.39 with code SHOP20 Promo details.
    $10.49 sale $14.99 Reg.

    Baby and Toddler Boy Jumping Beans® Swim Trunks

  • Top Rated
    $11.52 - $12.48 with code SHOP20 Promo details.
    $14.40 - $15.60 sale $24.00 - $26.00 Reg.

    Boys 4-20 Hurley Icon H20-Dri UPF 50 Top

  • $25.00 - $29.00

    Boys 4-18 Rokka&Rolla Quick Dry Drawstring Swim Trunks with Mesh Lining UPF50+

    (6)
  • $8.39 with code SHOP20 Promo details.
    $10.49 sale $14.99 Reg.

    Disney's Mickey Mouse Baby & Toddler Boy Allover Print Swim Trunks by Jumping Beans®

    (7)
  • $24.00 sale
    $40.00 Reg.

    Boys 8-20 Under Armour Flag Impression Swimsuit

    (1)
  • $12.00 with code SHOP20 Promo details.
    $15.00 sale $30.00 Reg.

    Toddler Boy Paw Patrol Rashguard & Swim Trunk Set

  • $30.00 sale
    $50.00 Reg.

    Boys 8-20 Under Armour Print When Wet Compression Swimsuit

    (5)
  • $26.40 sale
    $44.00 Reg.

    Boys 6-20 Nike Ocean Merge Graphic 7" Volley Swim Shorts

    (2)
  • $11.52 - $12.48 with code SHOP20 Promo details.
    $14.40 - $15.60 sale $24.00 - $26.00

    Boys 4-20 Hurley UPF 50+ H2O-Dri Ombre Logo Rash Guard Swim Shirt

  • $32.00

    Boys' 4-18 Compression Lined Swim Trunks Upf 50+

    (6)
  • $10.56 with code SHOP20 Promo details.
    $13.20 sale $22.00 Reg.

    Boys 4-20 Marvel Spider-Man Web Swim Trunks

    (5)
  • $27.96 with code SHOP20 Promo details.
    $34.95 Reg.

    Boys 2-20 Lands' End Slim Active Stretch Swim Trunks

    (2)
  • $20.16 with code SHOP20 Promo details.
    $25.20 sale $42.00 Reg.

    Boys 4-7 Marvel Spider-Man Web-Slinging 2 pc Hooded Rashguard & Swim Trunks Set

    (2)
  • $12.00 with code SHOP20 Promo details.
    $15.00 sale $30.00 Reg.

    Disney’s Mickey Mouse Baby & Toddler Rashguard and Trunks 2 pc Swim Set

  • $25.20 sale
    $42.00 Reg.

    Boys 4-7 Under Armour Town Pool Rashguard & Swimsuit Set

    (3)
  • $9.60 with code SHOP20 Promo details.
    $12.00 sale $20.00 Orig.

    Baby & Toddler Little Co. by Lauren Conrad Raglan Rashguard

    (3)
  • Top Rated
    $16.32 - $17.28 with code SHOP20 Promo details.
    $20.40 - $21.60 sale $34.00 - $36.00 Reg.

    Boys 4-20 Hurley Logo Pool Party Pull-On Swim Shorts

  • $20.16 with code SHOP20 Promo details.
    $25.20 sale $42.00 Reg.

    Boys 8-18 Quiksilver Slow Daze Boardshorts

  • $23.96 with code SHOP20 Promo details.
    $29.95 Reg.

    Boys 2-20 Lands' End Long Sleeve Mock Neck UPF 50 Swim Rash Guard

    (2)
  • $25.20 - $32.40 sale
    $42.00 - $54.00 Reg.

    Boys 4-20 Under Armour Water Camo Rashguard & Swimsuit Set

    (4)
  • Top Rated
    $12.48 with code SHOP20 Promo details.
    $15.60 sale $26.00 Reg.

    Boys 8-20 Hurley Shark UPF 50 T-shirt

  • $25.20 sale
    $42.00 Reg.

    Boys 4-7 Under Armour 2 pc Swim Top & Swim Shorts Set

Popular Swimwear Searches:

Boys' Bathing Suits

Does your little guy need some new swimwear for a pool party his classmate is throwing soon? No worries when you shop with Kohl's! Browse across our array of boy's swim trunks, organized by size! We know that your little ones grow quickly, which is why we've made finding the right size for where they're at easy! Shop our size categories of baby boys, toddler boys, little boys, and big boys to make sure you're getting the right size that they need! Also, Kohl's selection offers the designs that he's sure to love! Whether he's into dinosaurs, sharks, or football, we have what he'll be proud to wear out to the pool, the beach, or wherever he's off to!

Baby Boy Swimsuits

Does the smallest member of your family need something to swim in next time you hit the beach? Kohl's has you covered! We have swim shirts and bottoms just for baby boys that are sure to keep them looking cute while you take them for a swim! Typically, swimwear for the youngest crowd comes in sets including both a shirt and bottom for your littlest one to swim in, making it easy to give him a consistent style when he's ready for the pool! Check out this adorable Baby Boy Carter's "Lifeguard Off Duty" Rashguard Top & Shorts Swimsuit Set that's sure to keep him looking cool while in the water!

Boys' Swimsuits

For our boys that are a little older, Kohl's has some great swimwear available that's sure to make a splash at the pool! There are lots of designs to choose from that he'll think are awesome, such as graphics from his favorite tv shows and movies to floral and striped swim trunks! Is he a big sports fan? Take a look at our selection of sport-centric swim trunks, such as these Youth Charcoal Seattle Seahawks Heat Wave Swim Trunks, also available for teams such as the Packers, Broncos, Steelers, and Eagles! You can also take a look at this Youth San Francisco 49ers Block Rash Guard T-Shirt if he's more comfortable in a swim shirt or needs that extra level of protection from the sun! Alternatively, if he's excited to hit the beach but not too keen on swimming, we offer a vast assortment of boardshorts that are perfect for lounging on the beach towel and catching some sun!

Complete The Look

Now that he's got the swim trunks he needs to look stylish at the pool party, he needs the rest of his swim attire to be up to snuff! You don't have to worry when you shop at Kohl's, since we're your one stop shop for all of your swimwear needs! Take a gander at our collection of men's sandals that are perfect for your next family trip to the beach. For example, this pair of MUK LUKS Parker Men's Sandals is sure to keep their feet cool while they're looking fresh! You can also peruse our selection of mens sunglasses for those sunny days outdoors. Take a look at the tried and true style of the Men's Dockers Matte Black Wood Temple Sunglasses to protect their eyes -- and their sense of style!

When it comes to his warm-weather wardrobe, there's no better place to find swim trunks that will make a splash than at Kohl's! He'll hit the pool or beach in style with our wide array of boys swimwear. Whether its boys swim trunks or boardshorts you're looking for, you'll find everything you need in our large assortment of swimwear!