Mermaid Prom Dresses

Shop mermaid prom dresses at ONTOEFY for a dramatic, hourglass silhouette. A fitted bodice hugs the waist and hips before flaring at the knee, creating a red-carpet look for prom photos.

Our collection includes satin and chiffon mermaid gowns with corset bodices, draped details, high slits, and lace-up backs. Choose black, red, burgundy, navy, emerald, and sage. Sizes 2-28, with custom sizing on selected styles.

Explore all prom dresses, corset prom dresses, or ball gown prom dresses.

Compare silhouettes in our mermaid vs ball gown guide.


I’m absolutely in love with my hoco dress! The quality is amazing, the fabric is soft and comfortable, and the fit is perfect. It’s stylish, flattering, and looked stunning at the dance. I got so many compliments all night long. Shipping was fast, and it’s totally worth the price. Highly recommend!
—— Mia S.

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Sky Blue maxi prom dress, front view showing the mermaid silhouette
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Sky Blue Draped Corset Floral Sweetheart Mermaid Maxi Tulle Prom Dress for Formal Party

$111.99
Burgundy maxi prom dress, front view showing the mermaid silhouette
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Burgundy Corset Beaded Backless Sweetheart Mermaid Maxi Tulle Prom Dress for Ballroom Event

$94.99
Ivory maxi prom dress, front view showing the mermaid silhouette
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Ivory Draped Cut-Out Floral Slit Asymmetrical Neck Mermaid Maxi Prom Dress for Celebration Dinner

$108.99$127.99
Hot Pink maxi prom dress, front view showing the mermaid silhouette
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Hot Pink Draped Beaded Slit Sweetheart Mermaid Maxi Satin Prom Dress for Evening Ceremony

$91.99
Fuchsia maxi prom dress, front view showing the mermaid silhouette
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Fuchsia Ruched Draped Slit Backless Sweetheart Mermaid Maxi Satin Prom Dress for Hotel Gala

$119.99$135.99
Lavender maxi prom dress, front view showing the mermaid silhouette
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Draped Flower-Applique Floral V Neck Mermaid Maxi Satin Prom Dress for Red Carpet Event

$96.99$119.00
Black maxi prom dress, front view showing the mermaid silhouette
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Black Ruched Draped Slit Backless Sweetheart Mermaid Maxi Stretch Satin Prom Dress for Evening Banquet

$110.99
Emerald Green maxi prom dress, front view showing the mermaid silhouette
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Emerald Green Draped Backless V Neck Mermaid Maxi Satin Prom Dress for Awards Dinner

$93.99
Black maxi prom dress, front view showing the mermaid silhouette
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Black Ruched Draped Backless V Neck Mermaid Maxi Satin Prom Dress for Black Tie Event

$107.99
Fuchsia floor-length prom dress, front view showing the mermaid silhouette
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Flower-Applique Floral Sweetheart Mermaid Floor-Length Tulle Prom Dress for Pageant

$90.99
Lavender floor-length prom dress, front view showing the mermaid silhouette
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Corset Tiered Ruffled Slit Strapless Mermaid Floor-Length Organza Prom Dress for Formal Dance

$118.99
Blush Pink maxi prom dress, front view showing the mermaid silhouette
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Draped Sequin Backless V Neck Mermaid Maxi Prom Dress for Evening Event

$115.99$147.00
Hot Pink maxi prom dress, front view showing the mermaid silhouette
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Draped Cut-Out Floral Backless V Neck Mermaid Maxi Tulle Prom Dress for Special Occasion

$98.99
Black maxi prom dress, front view showing the mermaid silhouette
US 2US 4US 6US 8US 10US 12US 14US 16WUS 18WUS 20WUS 22WUS 24WUS 26WUS 28W

Draped Side-Slit Slit Backless V Neck Mermaid Maxi Satin Prom Dress for Ballroom Event

$95.99$114.99
Yellow maxi prom dress, front view showing the mermaid silhouette
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Yellow Draped Side-Slit Slit Backless Sweetheart Mermaid Maxi Satin Prom Dress for Celebration Dinner

$109.99
Black maxi prom dress, front view showing the mermaid silhouette
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Black Draped Side-Slit Slit Sweetheart Mermaid Maxi Satin Prom Dress for Evening Ceremony

$92.99
Emerald Green maxi prom dress, front view showing the mermaid silhouette
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Ruched Draped Slit Sweetheart Mermaid Maxi Satin Prom Dress for Winter Formal

$117.99$128.99
Black maxi prom dress, front view showing the mermaid silhouette
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Black Ruffled Floral Asymmetrical Neck Mermaid Maxi Tulle Prom Dress for Senior Prom

$114.99$133.00
Black maxi prom dress, front view showing the mermaid silhouette
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Ruched Draped Ruffled Backless V Neck Mermaid Maxi Satin Prom Dress for Evening Banquet

$111.99
Champagne maxi prom dress, front view showing the mermaid silhouette
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Ruched Side-Slit Slit Sweetheart Mermaid Maxi Prom Dress for Awards Dinner

$94.99
Coral maxi prom dress, front view showing the mermaid silhouette
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Coral Draped Ruffled Backless V Neck Mermaid Maxi Satin Prom Dress for Black Tie Event

$108.99
Blush Pink maxi prom dress, front view showing the mermaid silhouette
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Blush Pink Corset Cut-Out Floral Ruffled Sweetheart Mermaid Maxi Tulle Prom Dress for Pageant

$91.99
Deep Purple maxi prom dress, front view showing the mermaid silhouette
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Deep Purple Ruched Side-Slit Floral Slit V Neck Mermaid Maxi Tulle Prom Dress for Gala

$105.99
Pink maxi prom dress, front view showing the mermaid silhouette
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Pink Draped Corset Floral Ruffled Backless V Neck Mermaid Maxi Satin Prom Dress for Formal Dance

$119.99

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