Mermaid Costumes

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  • -44% Off
    $24.99 $44.98

    Explore your sea legs while wearing this mystical Adult Mermaid Costume. You'll never feel more at one with the ocean or its beloved sea creatures! Includes: Mermaid gown Pullover style Material: Polyester, polyurethane Care: Spot clean Imported Note: Crown, necklace, and shoes sold separately

  • -44% Off
    $15.00 $26.99

    Half fish, half baby, definitely adorable. This costume will have your baby looking like you just pulled them straight from the sea and brought them home. You’ll be able to transform your baby into a mermaid with no problem. Exclusively at Spirit Halloween Includes: Dress Headband Leggings Short sleeves Pullover…

  • -44% Off
    $11.49 $20.68

    You'll look delightful in this dark mermaid corset! Whether you're traveling by land or by sea, this corset will let everyone know that you're majestic. Adjustable straps Hook and eye closure Length: About 14" from center back to hem Material: Nylon, elastic Care: Spot clean Imported Note: Leggings, wig, jewelry…

  • -44% Off
    $9.99 $17.98

    Show off your underwater style when you don these dark mermaid leggings! These gorgeous, shimmery leggings feature dark scales that's perfect for any mystical mermaid look. Exclusively at Spirit Halloween  Inseam: 27"  Material: Polyester, spandex  Care: Hand wash  Imported   

  • -44% Off
    $6.50 $11.69

    Add to your dark mermaid look with this iridescent mermaid necklace. This awesome necklace is perfect for your night out! Lobster claw closure Material: Plastic Care: Spot clean Imported

  • -44% Off
    $4.00 $7.19

    Let your dark side come alive when you dress up as a dark mermaid this Halloween! This glitter-covered trident will have you looking like a majestic creature on the land or in the sea! Dimensions: 18" H x 5" W Material: Plastic, polyester Care: Spot clean Imported

  • -44% Off
    $6.50 $11.69

    You'll look like you just swam onto shore when you wear this faux pearl mermaid necklace! It's the perfect finishing touch to your Mermaid costume. Lobster claw closure Material: Plastic Care: Spot clean Imported

  • -44% Off
    $25.00 $44.99

    If your favorite Disney princess is Ariel from The Little Mermaid, you need to wear this officially licensed Kids Ariel Dress this Halloween. This dress will instantly transform you into the princess from under the sea! Officially licensed Includes: Dress Zipper closure Material: Polyester Care: Hand wash Imported

  • -44% Off
    $12.50 $22.49

    Bring undersea adventures to land in this dreamily detailed Lil’ Mermaid child costume. Take the plunge in this sparkling dress with a mermaids tail designed right into the dress, complete with matching headband. The Lil’ Mermaid child costume is a pastel green and lavender 100% polyester dress with unique fabric…

  • -44% Off
    $22.49 $40.48

    Your child will feel like the most beautiful creature in the ocean with the help of this gorgeous Mermaid costume! The top features a lovely light blue shimmer, while the skirt shows off an iridescent scale print, and then flows out into more blue shimmer to create a gorgeous tail.…

  • -44% Off
    $17.50 $31.49

    Get ready for nautical night of fun with this elegant mermaid dress, fished straight from the sea and available exclusively at Spirit Halloween! This beautiful dress features a colorful blue and purple top and a scaly green bottom that shimmers like the sea! Complete with a headband adorned with stylish…

  • -44% Off
    $4.00 $7.19

    Straight from the sea comes this colorful mermaid necklace! Splashed with blue and purple and featuring starfish and seashell bangles, this necklace is the perfect addition to any mermaid’s wardrobe. Exclusively at Spirit Halloween Dimensions: 11” L x 4.5” H x 1” W x 0.3” D Material: Polyester, elastane, acrylic…

  • -44% Off
    $6.50 $11.69

    Your young mermaid will feel like undersea royalty when you wear this gorgeous mermaid tiara! Featuring all of the mermaid must-haves, like seashells, pearls, and crystals, this lovely crown is absolutely perfect for completing your child's mermaid costume just in time for Halloween.  Dimensions: 2.5"H x 3.75"W x 2.5"D  Material:…

  • -44% Off
    $20.00 $35.99

    Your little one will be swimming through the streets on Halloween night when you slip them into this mermaid costume! The adaptable mermaid blanket tail and included headband and shell accessory will give you a completed look that came straight out of the sea. The mermaid blanket tail is adaptable…

  • -44% Off
    $9.99 $17.98

    Make Halloween the most magical one yet when you dress up in this officially licensed mermicorno costume! With a tiered tulle skirt and an attached 3D hood, you'll look like you are an official tokidoki product. Take a splash or travel through the clouds as you go from house-to-house collecting…

  • -44% Off
    $30.00 $53.99

    From Our Exclusive Signature Collection. Turn your little one into the out-of-water princess she's always wanted to be when you slip her into this mystical mermaid costume from our Signature Collection! With this beautiful mermaid costume that comes complete with a colorful, sequin-trimmed dress with two-tone iridescent fins, a tiara…