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Mermaid Costumes

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Adult Mermaid Costume
Made By Us Exclusive
Men's Poseidon Costume
Made By Us Exclusive
Tween Mysterious Mermaid Costume
Sale - 25%
Sea Siren Women's Costume
Sale - 15% Made By Us Exclusive

Sea Siren Women's Costume

$71.99-$85.99*
     
Poseidon Plus Size Men's Costume
Made By Us Exclusive
Men's Salty Merman Costume
Made By Us Exclusive
Women's Sea Siren
Sale - 21% Made By Us Exclusive

Women's Sea Siren

$71.99-$117.99*
Pretty Purple Mermaid Child's Costume
Made By Us Exclusive
Girls Sparkling Mermaid Costume
Made By Us Exclusive
Little Mermaid Ariel Deluxe Womens Costume
Sale - 20% Exclusive
Girl's Darkest Siren Costume
Sale - 25%
Plus Size Women's Undersea Mermaid Costume
Sale - 17% Made By Us Exclusive
Men's Mermaid Mafia Costume
Sale - 10%
Girl's Sea Siren Costume Main
Made By Us
Women's Fantasy Mermaid Costume
Exclusive
Child Bubbly Mermaid Costume
Made By Us Exclusive
Ariel Pet Costume
Sale - 20%

Pet Costume Ariel

$26.99-$45.99*
Child Mermaid Costume

Child Mermaid Costume

$39.99-$45.99
Women's Under the Sea Mermaid

Under the Sea Mermaid for Women

$85.99
Up to 15 % off – See low price in cart
Women's Shell-a-brate Mermaid Costume
Made By Us Exclusive
Elite Mermaid Costume
Video

Elite Mermaid Costume

$117.99
     
Infant Girls Mermaid Costume
Made By Us Exclusive
Adult Pirate and Mermaid Costume
Sale - 38%
Teal Mermaid Long Tail Skirt
Sale - 17%
Girls Orca Mermaid Costume
Sale - 11%
King Neptune Costume
Video
Sale - 13%
Girls Mermaid Costume

Girls Mermaid Costume

$32.99-$52.99
Rebel Mermaid Womens Costume
Sale - 20%
Sea Shell Purse
Made By Us Exclusive
Seaweed Boa
Pink Ombré Wig
Sale - 10% Made By Us Exclusive

Pink Ombré Wig

$26.99$23.99
Golden Trident
Made By Us Exclusive
Women's Blonde and Green Ombre Wig
Sale - 10% Made By Us Exclusive
Supernova Wig
Sale - 25% Made By Us Exclusive

Supernova Wig

$26.99$19.99

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!