18 Mermaid Halloween Costumes Inspiration

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Something are interesting about mermaid Costumes, they are magical, glam, and cute. This is the time for us to channel our inner sea siren, Halloween is the time to dress up and stand out. So we have made this enchanting mermaid Halloween costume list. So expect glamorous sequins to spooky, trendy sirens of the deep, magical mermaid blend of fantasy and creativity.

Whether you are thinking of shimmering sequins, a scary siren, a flowing tail, or a beautiful shell for the top and crown of a queen. The mermaid aesthetic offers so much room to be creative. Here are 18 mermaid Halloween costume ideas to inspire your look this season.

18 Mermaid Halloween Costume Ideas

Instagram |@miyah.wood

This is one of my favorites, so I want to start this list off strong. Easy to recreate, all you need is a white bra and customize it with small seashells and gems. So this DIY costume is a top last-minute look. To complete your look, add this drawstring crocheted over a skirt to channel that beach fit.

Classic Glitter Mermaid

Instagram |@elizabethzaks

Ok this is one of the popular mermaid costumes you can do yourself, with a shimmering green tail, a seashell bra, and long flowing hair. This is the iconic look that will always instantly slay and capture that mystical feel of the ocean.

Pirate Mermaid Hybrid

Pirate and mermaid Halloween Costumes Inspiration

Instagram |@anoukeman

Blend two Halloween classics into one. Pair your shimmering mermaid tail with a pirate hat, sword, and corset for a bold, adventurous twist. So do you like being a mermaid and pirate but cannot decide which to be this season? Well, here is your inspo to do both,

Ice Mermaid

This costume can be frozen ocean inspired, so blue and silver sequins and frosted makeup to complete the look. If you want to stand out, think of adding some rhinestones or snowflakes for a frosty, magical look.

In a Pearl

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Easy Dark Siren Look

So this is the dark side of the mermaid realm, go with black tones, dark purple, midnight blue, or distress white outfits. Adding the right makeup and accessories, like a seashell crown, fake seaweed, to channel a scary sea siren.

Mother of Pearls

cute mermaid costume idea for Halloween.

Instagram |@angivettehdez

The color is so pretty on this the skirt is a little sheer, and the belly pearls look great. The minimal makeup with slight shimmer is so pretty and looks natural. Add small pearls to your hair and a starfish hairclip for the mermaid aesthetic.

Washed up

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Zombie Mermaid

Instagram |@chelseybrookefitness

Combining two popular genres to create a glamorous look by adding torn fins, with ghost makeup. Adding fishnet accents and seaweed-draped rags for that washed-up look.

Punk Rock Mermaid

If you are thinking of changing this feminine style to something more punk, here is a cool way to do that. Add combat or platform boots to a mermaid dress. This is how you can create the look.

Chic Sea Goddess

Sleek black dress, mermaid shape design for halloween celebration

Instagram |@isabel_anghel

Instead of the traditional glitter dress or two-piece, you can go with a sleek black dress/ gown. However, this is not very custom like its a cute dress that can be worn for a Halloween party date. This look is elegant and balanced with an ocean-inspired style.

pearl kit

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Simple Halloween Costume

Ocean Princesses

Cute and Simple

If you want a Halloween college party costume, this is an easy budget-friendly version. You need a skirt that glitters, add some fishnet over it and a white tube top, and a starfish with small pearls.

Minimalist Mermaid

If you are not too fussy and want to be a bit modest, we’ve got you covered.

Day of the Dead Mermaid

With sugar skull Halloween Makeup to make your look stand out. You can customize your outfit with these costume accessories and stand out as your inner siren. I love how easy it is to recreate this in one simple order.

Green Siren

Sea Goddess Mermaid costume

This costume is pretty and styled with bold pearls to add to the drama. Get a pearl white skirt with a long slit, and you can add a crown for an extra dramatic look.

Little Mermaid Ariel Costume

A nod to Disney’s beloved princess, this one is perfect for both kids and adults. Pair a bright red wig with a purple shell top and green mermaid skirt for a recognizable and charming costume.