Shop the Look - The 4 Most Beloved Mermaid Costumes for Halloween

Halloween is just around the corner, and for us merfolk, it’s the perfect time to let our tails shine on land! Whether you're an experienced mermaid looking to bring your underwater magic above the surface or someone new to the mer-world, there's nothing quite like a mermaid Halloween costume to make waves at any party. From glittering tails to elegant sea-inspired gowns, the options are endless.

Let’s dive into some fin-tastic costume ideas that will transform you, your partner, and your little ones into the perfect mer-family—whether you’re embracing your inner sea siren or giving your baby the cutest guppy makeover. And if you already own a spectacular mermaid tail, we’ve got some tips on how to keep it simple and still make a splash!

Mermaid Costumes for Women: Bringing the Ocean Above the Surface

Whether you're a seasoned mermaid who spends her days gliding through the water or a first-timer embracing the mermaid magic, finding the right land-based costume can be a delightful challenge. Here’s how to channel your inner mer-queen on Halloween.

1. The Classic Ariel Look

If you're all about tradition, go for the classic Ariel mermaid look. A shimmering skirt immitating a tail, seashell bra, and a flowing wig to mimic ocean waves is a timeless choice. We also found some cute accessories to up the game even further.

Tip: Add some bioluminescent glow with glowing body glitter, perfect for evening events. You’ll light up the room (literally!) while staying true to your deep-sea roots.

Want a different Ariel version?

If you want to go more into the land-based Ariel vibe, why not go for this beautiful variant - we even found a singing seashell necklace on the German Amazon :)

2. Mermaid-Inspired Dresses for the Glamorous Siren

If you want to glam it up a notch, we’ve got you covered both on the shiny mermaid as well as the dark siren side of things. The main gist here is to look for dresses with a fishtail silhouette or iridescent fabric that mimics the shimmer of scales. Pair this with pearls, shells, and ocean-inspired jewelry for a high-fashion, red-carpet-worthy sea queen vibe.

Tip: The photo at the left is from Lauren Conrad with a very nice idea of how to make a great glam oufit.

3. Sea Witch or Pirate Captain Vibes

Not every mermaid is pure and innocent! For those who love a bit of mystery or edge, why not go for a sea witch? Channel your inner Ursula or create your own aquatic villain—because being a little mischievous on Halloween is always fun.

(Picture: Dimamorgan12/GettyImages

Keeping It Simple: Repurposing Your Water Tail for Land

Already own a killer mermaid tail and don't want to buy a new costume? Keep it simple by adding a land element to your tail costume! Throw in some creative flair by turning your partner into a pirate, Aquaman, or sea captain who "drags" you along in a buggy or a decorative wagon, just like you’re being towed to shore.

Buggy Ideas:

• Pirate Ship: Decorate a wagon with wood panels and pirate flags. Your partner can "row" you around while you lounge like the queen of the sea.

• Royal Chariot: For a more majestic touch, transform the buggy into a royal chariot or seashell throne! Add some LED lights and seashells for extra sparkle, and you’ve got a simple yet eye-catching ensemble.

Final Thoughts: Dive into Your Mer-Style This Halloween!

Whether you're going all out with glittering tails and ocean-themed accessories, or keeping things simple by transforming your existing mermaid look for land, Halloween is the perfect time to bring your mermaid dreams to life. From glamorous sea goddesses to adorable baby guppies, there’s a mermaid costume for everyone.

So, grab your partner, your little guppies, and your pirate ship—or chariot—and let’s make this Halloween the most mer-mazing one yet. 🧜‍♀️✨