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Mermaid Costumes

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When you’re looking for a captivating costume, you can’t go wrong with a mermaid costume! Your child will look great in one of our girl’s mermaid costumes while you stun in any of our mermaid costumes for adults! There’s something for everyone in our selection of mermaid Halloween costumes, from mermaid tail skirts to wigs and golden accessories, you’ll find everything you need for an excellent Halloween!
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1 - 60 of 158
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Women's Venus Mermaid
Sale - 44%
€91.99€50.99-€91.99*
Men's Poseidon Costume
Made By Us Exclusive
Little Mermaid Live Action Adult Deluxe Ariel
Sale - 31%
Men's Salty Merman Costume
Made By Us Exclusive
Deluxe Under the Sea Beauty
Sale - 46% Made By Us
Little Mermaid Live Action Adult Ariel Costume
Sale - 44%
Women's Deep Sea Mermaid Costume
Sale - 50% Made By Us
€60.99€30.99-€60.99*
Adult Mermaid Costume
Sale - 31% Made By Us
€65.99€45.99-€65.99*
Women's Shell-a-brate Mermaid Costume
Sale - 58% Made By Us
Plus Size Women's Undersea Mermaid Costume
Sale - 38% Made By Us
Plus Size Women's Shell-a-brate Mermaid Costume
Clearance Made By Us
Adult Sweet Mermaid Costume
Sale - 33%
Under the Sea Mermaid Women's Costume
Sale - 27%
€76.99€55.99-€76.99*
Womens Deep Sea Siren Costume
Sale - 22%
€91.99€71.99-€81.99
Poseidon Plus Size Men's Costume
Made By Us Exclusive
Men's Mermaid Mafia Costume
Clearance  - 60%
€50.99€20.99
Plus Size Salty Merman Costume
Made By Us Exclusive
Women's Sea Siren
Made By Us Exclusive
Womens Spooky Siren Costume
Sale - 64% Made By Us
€50.99€18.99-€50.99*
Mens Sexy Poseidon Costume
Made By Us Exclusive
Girls Mermaid Costume
Sale - 40%
€25.99€15.99-€25.99
Women's Under the Sea Mermaid
Clearance  - 69%
Sea Siren Women's Costume
Made By Us Exclusive
Seahorse Shimmer Fin Headband Update
Made By Us Exclusive
Fingerless Mermaid Gloves
Sale - 47% Made By Us
Light Pink Long Bob Wig
Sale - 35% Made By Us
Mermaid Makeup Kit
Sale - 33% Made By Us
€6.99€4.99
Seahorse Shimmer Fin Arm Cuffs
Made By Us
Poseidon Adult Costume Kit
Sale - 27% Made By Us
Deluxe Fuchsia Gogo Boots Single UPD
Sale - 50% Made By Us
€50.99€25.99-€30.99
Neon Pink Lipstick
Clearance  - 50%
€4.99€2.99
Hot Pink Long Wavy Wig
Sale - 40% Made By Us
Bright White Long Wavy Wig
Sale - 43% Made By Us
Deep Blue Sea Wig
Sale - 38% Made By Us
€40.99€25.99
Aquatic Arm Fins
Clearance Made By Us
€15.99€7.99
Bright Teal Wavy Wig
Sale - 35% Made By Us
Mermaid Crown
Sale - 77% Made By Us
€13.99€3.99
Deluxe Women's Wicked Sea Witch Wig
Sale - 14% Made By Us
Light Blue Full Wavy Wig
Sale - 32% Made By Us
€25.99€17.99
Mermaid Shell Headband
Sale - 80% Made By Us
€10.99€2.99
Light Purple Bob Wig
Sale - 25% Made By Us
Black and Green Ombre Long Wavy Wig
Sale - 43% Made By Us
Deluxe King Neptune Wig
Made By Us Exclusive
Sea Shell Purse
Made By Us Exclusive
€15.99
Dark Purple Long Wavy Wig
Made By Us Exclusive
Black and Red Long Wavy Wig
Made By Us Exclusive
Womens Mermaid Seashell Bra
Sale - 50% Made By Us
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We contend that Mermaids aren't real no matter how many of those weird documentaries on the History Channel say they are! We need ireffutable proof... but wait a minute... there's been a new sighting and it's pretty compelling... this can't be, but mermaids ARE real and they've been sitting right here at Halloweencostumes.com this entire time! This is remarkable! We're looking through our spyglass here and we see mermaid costumes for kids and women both, from sexy to classic styles, and even mermaid costumes that recreate a certain animated character that loves to sing on rocks! Someone call a documentary crew because we've got the scoop of the century here! 

Whether you want a sexy mermaid costume, a stunning girls mermaid outfit, a goth mermaid costume, or even an under the sea warrior - we have it all! 

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