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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Red maxi prom dress, front view showing the mermaid silhouette
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Red Draped Side-Slit Slit Backless V Neck Mermaid Maxi Prom Dress for Ballroom Event

$100.99
Gold maxi prom dress, front view showing the mermaid silhouette
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Gold Draped Side-Slit Slit Backless V Neck Mermaid Maxi Satin Prom Dress for Evening Ceremony

$97.99
Red maxi prom dress, front view showing the mermaid silhouette
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Red Draped Sequin Backless Asymmetrical Neck Mermaid Maxi Velvet Prom Dress for Formal Reception

$111.99$139.99
Light Blue maxi prom dress, front view showing the mermaid silhouette
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Light Blue Ruched Draped Backless V Neck Mermaid Maxi Satin Prom Dress for Hotel Gala

$94.99$106.99
Red maxi prom dress, front view showing the mermaid silhouette
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Draped Cut-Out Slit Backless Sweetheart Mermaid Maxi Satin Prom Dress for Spring Formal

$105.99$122.00
Light Blue maxi prom dress, front view showing the mermaid silhouette
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Draped Side-Slit Floral Ruffled Slit Sweetheart Mermaid Maxi Tulle Prom Dress for Red Carpet Event

$102.99
Lavender maxi prom dress, front view showing the mermaid silhouette
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Lavender Draped Ruffled Floral Backless Sweetheart Mermaid Maxi Tulle Prom Dress for Evening Banquet

$116.99$139.00
Olive Green maxi prom dress, front view showing the mermaid silhouette
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Olive Green Draped Corset Ruffled Slit V Neck Mermaid Maxi Satin Prom Dress for Black Tie Event

$113.99
Hot Pink maxi prom dress, front view showing the mermaid silhouette
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Hot Pink Ruched Draped Ruffled Slit Sweetheart Mermaid Maxi Satin Prom Dress for Pageant

$96.99$125.00
Navy Blue maxi prom dress, front view showing the mermaid silhouette
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Navy Blue Cut-Out Side-Slit Slit V Neck Mermaid Maxi Prom Dress for Formal Dance

$93.99$121.99
Red maxi prom dress, front view showing the mermaid silhouette
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Red Ruched Draped Slit Backless Sweetheart Mermaid Maxi Satin Prom Dress for Prom Night

$107.99
Red maxi prom dress, front view showing the mermaid silhouette
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Red Draped Ruffled Backless Sweetheart Mermaid Maxi Satin Prom Dress for Evening Event

$90.99
Red maxi prom dress, front view showing the mermaid silhouette
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Red Ruched Draped Slit Sweetheart Mermaid Maxi Satin Prom Dress for Formal Reception

$112.99
Hot Pink floor-length prom dress, front view showing the mermaid silhouette
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Hot Pink Flower-Applique Floral Slit Sweetheart Mermaid Floor-Length Tulle Prom Dress for Charity Ball

$109.99
Champagne floor-length prom dress, front view showing the mermaid silhouette
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Champagne Corset Tiered Ruffled Sweetheart Mermaid Floor-Length Tulle Prom Dress for Senior Prom

$89.99$116.00
Blue floor-length prom dress, front view showing the a-line silhouette
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Blue Pleated Side-Slit Slit V Neck A-Line Floor-Length Satin Prom Dress for Black Tie Event

$114.99$139.99
Red floor-length prom dress, front view showing the mermaid silhouette
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Red V Neck Mermaid Floor-Length Stretch Satin Prom Dress for Pageant

$97.99$127.00
Sage Green floor-length prom dress, front view showing the mermaid silhouette
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Sage Green Ruched Draped Floral Slit Sweetheart Mermaid Floor-Length Satin Prom Dress for Gala

$111.99$141.00

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