Girls' One Piece Swim

neon swim sale

neon swim sale

50+ styles up to 50% off

swim accessories

swim accessories

starting at $9.99

spring stock up sale

spring stock up sale

up to 50% off

  1. New
    Royal Blue and Yellow Princess Big Bow Skirted One Piece Swimsuit Royal Blue and Yellow Princess Big Bow Skirted One Piece Swimsuit

    Royal Blue and Yellow Princess

    Big Bow Skirted One Piece Swimsuit

    UPF 50+ sun protection

    $42.00
  2. Clearance
    Cottage Tea Time Pinafore One Piece Cottage Tea Time Pinafore One Piece

    Cottage Tea Time

    Pinafore One Piece Swimsuit

    UPF 50+ sun protection

    $29.99 Regular Price $44.00
  3. New
    Star Smile Cross-Back One Piece Star Smile Cross-Back One Piece

    Star Smile

    Cross-Back One Piece

    UPF 50+ sun protection

    $30.00
  4. New
    Star Smile Long Sleeve One Piece Rash Guard Star Smile Long Sleeve One Piece Rash Guard

    Star Smile

    Long Sleeve One Piece Rash Guard

    UPF 50+ sun protection

    $42.00
  5. Flamingo Frenzy Ruffle V-Back One Piece Flamingo Frenzy Ruffle V-Back One Piece

    Flamingo Frenzy

    Ruffle V-Back One Piece Swimsuit

    UPF 50+ sun protection

    $36.00
  6. Clearance
    Flamingo Frenzy Girls Short Sleeve One Piece Rash Guard Flamingo Frenzy Girls Short Sleeve One Piece Rash Guard

    Flamingo Frenzy

    Girls Short Sleeve Rash Guard One Piece Swimsuit

    extended sizing

    $29.99 Regular Price $38.00
  7. Flamingo Frenzy Long Sleeve One Piece Rash Guard Flamingo Frenzy Long Sleeve One Piece Rash Guard

    Flamingo Frenzy

    Long Sleeve One Piece Rash Guard Swimsuit

    UPF 50+ sun protection

    $42.00
  8. Clearance
    Rainbow Tie Dye Long Sleeve One Piece Rash Guard Rainbow Tie Dye Long Sleeve One Piece Rash Guard

    Rainbow Watercolor

    Long Sleeve One Piece Rash Guard Swimsuit

    UPF 50+ sun protection

    $29.99 Regular Price $42.00
  9. Clearance
    Rainbow Seersucker Tween Henley One Piece Rainbow Seersucker Tween Henley One Piece

    Rainbow Seersucker

    Tween Seersucker Henley One Piece Swimsuit

    UPF 50+ sun protection

    $16.99 Regular Price $36.00
  10. Clearance
    Rainbow Tie Dye Tie Shoulder One Piece Rainbow Tie Dye Tie Shoulder One Piece

    Rainbow Watercolor

    Tie Shoulder One Piece Swimsuit

    UPF 50+ sun protection

    $24.99 Regular Price $30.00
  11. Vibrant Flamingo Long Sleeve One Piece Rash Guard Vibrant Flamingo Long Sleeve One Piece Rash Guard

    Vibrant Flamingo

    Long Sleeve One Piece Rash Guard Swimsuit

    UPF 50+ sun protection

    $42.00
  12. Vibrant Flamingo One Shoulder Ruffle One Piece Vibrant Flamingo One Shoulder Ruffle One Piece

    Vibrant Flamingo

    One Shoulder Ruffle One Piece Swimsuit

    UPF 50+ sun protection

    $36.00

Outstanding One-Piece Swimsuits for Girls

Your girl is ready to splash, laugh, explore, and play—set her up with sweet and sassy RuffleButts swimwear and keep her happy all summer long. From long-sleeve zippered one-piece rash guards to a skirted girl one piece swimsuit with beautiful bow details, explore our huge selection of girl’s one piece swimsuits.


Take your pick of colorful stripes, polka dots, paisleys, and florals—we even offer one piece swimsuit designs featuring flamingos and mermaid scales for next-level fun. We carry a wide variety of patterns, prints, and solid color bathing suit options, so you’ll have no problem finding one that fits her personality perfectly.


We’ve designed all of our RuffleButts swimming apparel with comfort and practicality in mind. With UPF 50+ sun-protective fabric and helpful details like snaps and zippers, our products are built to offer the very best quality to you and your little girl. One piece swimsuits that are age-appropriate, cozy to wear, super durable, and absolutely adorable don’t have to be a pipe dream. Dive into our collection and find the perfect girl’s swimwear for the pool or beach.

Loading...
- or -
Proceed to Cart