Women's Little Mermaid Costumes

















Was Disney's Little Mermaid your favorite Princess tale growing up? Maybe you have little ones now and they're itching to swap legs for a mermaid tale in reverse of Ariel while you take on the role of Ursula. Or perhaps you've been dreaming of alternate storylines and endings to the magical tale. Whatever brings you to our collection of women's Little Mermaid costumes, we're sure we've got the treasure you seek!
Now, if you're looking for gadgets and gizmos aplenty, you'll want to swim over to or Little Mermaid accessory collection—or really any of our accessory and decorations collections. This collection is for ready-to-wear costumes that get grown fans dressed like all their favorite Little Mermaid characters.
Where should we start this story? With its leading lady? Maybe Ursula and the magic that ensured the story was filled with fairytale drama. Or how about the sidekicks? They're just as important to the story, and if you're here because your kiddo asked you to pair up for a Little Mermaid trick-or-treat, its unlikely you get to play the leading roles anyway.
Luckily, our costumes inspired by Flounder, Sebastian, Flotsam, and Jetsam promise just as much fun! If your kiddo is playing Ariel, our pullover Flounder adult costume is an easy choice. Join their Halloween treasure hunt as the brave lil guppy while comfortably dressed in an outfit the coordinates with the sunny yellow tunic or ensures it takes centerstage.
Meanwhile, for kids playing Ursula, and that want to claim the spotlight, our Flotsam & Jetsam style is a perfect parental choice. Ensure Ursula has her poopsies while dressed comfortably like an electric eel. Grab two and your fellow parent or a friend so both poopsies are ready to swim alongside Ursula.
Channel the same sidekick energy for couples and adult group costumes, too. Or, when it's your turn for the leading role, dive into our Ariel, Ursula, and original mermaid styles.
Ariel has three signature looks. One for under the sea fun and two for dances and adventures on land. As a fan, you can enjoy (in fact we insist) you enjoy all three on land. Simply choose between our Disney Ariel dresses—we've got her casual blue dress up to 5X and demure pink ballgown up to 4X—or any of our Ariel-inspired or Disney-approved mermaid options.
With green skirts and purple tops in a variety of finishes and shapes, from matte to shimmering and full-coverage to bandeaux, there really is an Ariel mermaid costume for every Little Mermaid adult. We've even got a sporty option with pants that's perfect for parents keeping up with trick-or-treaters or haunted house party hoppers.
Ursula more your speed? Shop two unique and impressively stylish Ursula costumes with inflatable tentacles and stunning bodices, skirts, and accessories. Choose a sassy update on Ursula's powerful tentacles with a cocktail dress styled with shorter tentacles that won't interfere with movement. Or give Ursula legs just like Ariel begged for when you pick our Vanessa costume!
Last, but not least, tell your own Little Mermaid story with the original mermaid costumes available right here. Imagine Ariel were crowned queen of Atlantica while wearing our sea siren costume dress. Suppose she had a more mesmerizing style with sexy women's mermaid costumes that keep the color palette while revealing a bit more skin. All that and so much more can be found in our Little Mermaid collections!