If after watching Disney's dreamy retelling of The Little Mermaid, you're left wanting to dive into a magical world full of vibrant color, shimmering scales, enchanting melodies, and the sweetest fish friends—you're not alone. Though we can't actually take a trip under the sea, we can transform ourselves into the mesmerizing mythical creatures for Halloween!
Whether you're headed to a Halloween party or spending the night trick-or-treating, mermaid Halloween costumes are sure to make a splash on October 31. With all those shells and sparkles, how could they not? Plus, they work great as simple costumes for women, costumes for teens, costumes for kids, and everyone in between! Grab your girls and make mermaid group costumes or convince your significant other to join you as a pirate for couples costumes.
Now that your head is swimming with ideas, check out the DIY mermaid Halloween costumes we've curated here. With a few costume items like a shell top and mermaid tail skirt, you can easily unleash your inner sea-goddess. Below, you'll find costumes that take inspiration from Princess Ariel herself in both the new live-action remake and beloved animation as well as ideas that up the glamour on a classic mermaid costume. You might even lean into the darker depths by turning into a hypnotic sea siren. No matter your choice, you're sure to look fin-tastic. Just add some Halloween face makeup in the form of colorful eyeshadow and glitter to really take your costume to the next level.
Ariel Mermaid Costume
Become apart of that world when you copy Ariel's dazzling "Under the Sea" look from The Little Mermaid. The beloved princess is perhaps one of the most popular pop culture Halloween costumes—and for good reason! Her famous outfit pieces like a purple shell top, green skirt, and red wig are instantly recognizable and can easily be found online, at costume shops or maybe even made at home. Just don't forget to bring along her best friend, Flounder!
Mermaid Seashell Bikini Top
Mermaid Tail Skirt
Shell Shoulder Bag
Starfish Hair Clip
Fork Bracelet
Flounder Plush
Glamorous Mermaid Costume
Looking to put a unique (tail)spin on your costume? Take the classic mermaid look we all know and love then add your own glitz and glam! This DIY idea can be done by adhering sea shells to a plain bodice then slipping into a sequin skirt. Finish it off by accessorizing with starfish hair clips and other sea-inspired jewelry then get ready for a wave of compliments!
Seashell Bra
Starfish Hair Clip
Shell Dangle Earrings
Siren Mermaid Costume
If you prefer the eerie side of Halloween, look no further than a sea siren! With dark and sultry clothing items like a tail skirt and top, you can put together a mysterious ensemble that's perfect for luring sailors to their demise with magical song. Okay, maybe you wouldn't do that, but the outfit is beautiful! An eye-catching headpiece tops it off. You can even DIY a net cloak to really complete the mystique.
Metallic Mermaid Skirt
Black Wreath Crown
Princess Ariel Costume
Though not technically a mermaid costume, we just have to include the gorgeous gown Princess Ariel wears upon venturing to land after trading her voice and mermaid tail for human legs. The flowing pink dress is accessorized with white drop earrings and a hair clip. And if you go with this one, you just have to carry around your own dinglehopper! The only difference: Instead of dinner with Prince Eric, you'll be feasting on all the candy you just collected.
Pink Gown
Red Wig
Pearl Drop Earrings
Pearl Hair Clip
Pink Ballerina Flats
Kids' Mermaid Costume
Every little girl dreams of one day diving into the ocean or pool and emerging a mermaid! Make her fishtailed fantasy become a reality when you DIY a costume fit for the majestic sea creatures themselves. This one consists of a sequined scale top and tail skirt. Both the top and skirt come in several colors for your little one to choose from, too. She'll have so much fun imagining her own ensemble. After she's picked her outfit, pair it with a seashell crown and the cutest mermaid accessories! And if she wants that beachy hair look, you can style her locks using a crimper.
Mermaid Sequin Top
Mermaid Tail Skirt for Kids
Seashell Headband
Mommy and Me Mermaid Costume
How cute is this mom and daughter costume? We love the idea of a momma mermaid and her little minnow mermaid taking on Halloween as a pair. You can make this matching look come together with shell T-shirts and tail skirts for the both of you. Add a little magic with a colorful wig for yourself and a starfish headband for baby. Once it's all done, be sure to seas the day by using these Halloween Instagram captions to share your adorable photos.
Mermaid Sea Shell Bra Tank Top
Pink Wig
Kid's Mermaid Sea Shell Bra T-Shirt
Kid's Mermaid Tail Skirt
Baby Starfish Headband
Macie Reynolds is the assistant editor of E-Commerce and SEO for The Pioneer Woman.
