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The Best Mermaid Costumes for Halloween or Cosplay

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Costumes shown above are featured below.

Costumes shown above are featured below.

Make a Splash this Halloween in One of These Mermaid Costumes

Mermaids are perennially popular costumes for Halloween. Whether you opt for a creature from classic Fairy Tales, Folklore or Disney, there are a lot of choices from sweet to sexy.

We've searched for the most popular AND the most unusual mermaid costumes and assembled them here for your convenience.

We've also included some interesting facts about mermaids that you may not have heard of before plus a few short and interesting mermaid videos that explore the topic.

You'll find marvelous mermaid costumes for infants, toddlers, kids, tween, teens and adults. Although we usually think of costumes as restricted to Halloween, they are great for creative play for kids all year round.

The Littlest Mermaids in our life Adore this Costume - Yours will too!

Mermaid Mythology

Photo of The Little Mermaid, Copenhagen is available in a variety of sizes and formats at

Photo of The Little Mermaid, Copenhagen is available in a variety of sizes and formats at

Mermaid Mythology

Mermaids have captured the imagination of many since long before Hans Christian Anderson wrote "The Little Mermaid" in 1836. From Ancient Assyrian and Greek mythology until today, sightings have been reported, although whether they are fact or fiction remains open to conjecture.

Generally depicted as half woman and half fish, mermaids can be benevolent or malicious. They appear in the lore of every continent and are the subject of operas, books, films, tv shows and even comic books.

There are more than 135 municipal mermaid statues in more than 50 countries worldwide.

Perhaps the most famous of these is the bronze mermaid seated on a rock in Copenhagen's harbor that was inspired by Anderson's fairy tale and has become an icon of that city and of all of Denmark as well.

Want to learn more about Mermaids?

Start with this collection of the fascinating history of Mermaids

Mermaids: The Myths, Legends, and Lore

by Skye Alexander

The allure and mystery of mermaids has taken hold of our psyche for ages. From the Irish merrows who come on land to search for human husbands to the fake Fiji Mermaid made popular by P.T Barnum, these sea maidens (and sometimes men) can be found in folklore and mythology from every tradition in the world.Inside this captivating collection, complete with beautiful illustrations throughout, you'll discover the myths surrounding these enigmatic beings, explore the common symbols associated with them, and learn tales of merfolk from around the world. Dive into Mermaids and get swept away!

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Sexy Sirens - Adult Mermaid Costumes

Just a few of the many mermaid costumes for women to choose from at

Just a few of the many mermaid costumes for women to choose from at

Cute Mermaid Costumes for Infants through Tweens

Do you believe in mermaids? - Have you seen one?

Mermaids or Manatees?


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