Mermaid Party Dresses

Get ready to make a splash, because our mermaid party dresses are here to turn your next event into an under-the-sea adventure! Imagine shimmering scales, iridescent hues, and silhouettes that hug you in all the right places—these dresses are designed to unleash your inner siren. Whether you're channeling Ariel vibes or just want to feel like the queen of the ocean, these enchanting styles promise to leave everyone in awe. Dive into a world where fantasy meets fashion, and let your mermaid dreams come true with every twirl and wave.

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$69.90

4.347826 star rating

A taupe satin strapless mermaid dress with a sweetheart neckline and chic pleated detailing.

$69.90

4.722222 star rating

A periwinkle mesh off-the-shoulder dress with ruched seams and a mermaid silhouette.

$59.90

4.352941 star rating

A stunning red mesh mermaid dress with ruched seams, cowl neckline, and adjustable straps.

$109.90

4.722891 star rating

A chic navy blue mermaid dress with sequins, a square neckline, and a thigh-high slit.

Best Seller

$109.90 - $149.90

4.709091 star rating

A pink mermaid silhouette dress with sequin-scroll pattern, V-neckline, and lace-up back.

$74.90

4.416667 star rating

A navy blue glitter knit mermaid dress with a square neckline and lace-up open back design.

$119.90

4.735294 star rating

A glamorous yellow mermaid dress featuring a sequin scroll pattern and an alluring lace-up back.

Best Seller

$84.90

4.464286 star rating

A pink glitter knit mermaid dress with a bow-back design and floor-length train for formal events.

$89.90

4.826087 star rating

A luxurious green knit mermaid dress featuring an off-the-shoulder neckline and dramatic high front slit.

$99.90

4.636364 star rating

A mint sequin scroll mermaid dress with a strappy back, perfect for prom or black-tie events.

$64.90

4.526316 star rating

An elegant green satin mermaid dress with a lace-up back and flattering V-neckline.

$79.90

4.823529 star rating

A light blue mesh mermaid dress with faux pearl embellishments and a flattering sweetheart cowl neckline.

$69.90

4.588235 star rating

A navy blue mermaid dress with a cowl neckline, crisscross back, and dramatic high front slit.

$69.90

4.8125 star rating

A burgundy knit formal dress with a lace-up back, ruching, and a mermaid silhouette.

$69.90

4.466667 star rating

A mauve mermaid silhouette dress with glitter fabric and adjustable spaghetti straps for formal events.

Sale

$77 $109.90 30% off

4.416667 star rating

A stunning royal blue mermaid dress with sequins, adjustable straps, and a high front slit.

$89.90

4.090909 star rating

A light blue glitter knit mermaid dress with ruching and a stylish lower back cutout.

Sale

$19.97 $69.90 71% off

4.454546 star rating

A pink glitter knit mermaid dress with a lace-up back and high front slit.

$84.90

5 star rating

A sage sequin formal dress featuring a one-shoulder neckline and a curve-hugging mermaid silhouette.

$59.90

4.777778 star rating

A black crepe mermaid dress with a square halter neckline and elegant high front slit.

$69.90

4.25 star rating

A navy blue mermaid dress with a strappy open back and sleek, stretchy knit fabric.

$89.90

4.5 star rating

A dazzling gold mermaid dress with a lace-up back, high slit, and glitter knit fabric.

$79.90

4.571429 star rating

A royal blue satin mermaid dress with a high slit and open cross-back strappy design.

$69.90

4.571429 star rating

A wine-colored glitter crepe mermaid dress with a cutout bodice and high front wrap slit.

$99.90

4.833334 star rating

A sage mermaid formal dress featuring a halter V-neckline and elegant tie-back design.

$89.90

4.666667 star rating

A lavender mermaid gown with a lace-up back and glitter lurex fabric for formal occasions.

$64.90

4.666667 star rating

A green glitter knit mermaid dress with ruched detailing, spaghetti straps, and a high front slit.

$119.90

4.333334 star rating

A stunning pink mermaid dress with sequin beaded embroidery and a satin strapless pleated neckline.

$139.90

5 star rating

A pink mermaid silhouette dress with sequin-beaded bow pattern and chiffon tie-back design.

$69.90

3.8 star rating

A pink off-the-shoulder mermaid dress with glitter fabric, ruched bust, and high front slit.

$64.90

4.8 star rating

An olive mermaid formal dress with a cowl neckline and elegant open tie-back design.

$69.90

4.4 star rating

A brown mermaid formal dress featuring a halter V-neckline and open back in smooth knit fabric.

$69.90

5 star rating

A blue floral crepe mermaid dress with a sweetheart neckline and high front slit.

$84.90

4.8 star rating

An enchanting black mermaid dress with glitter mesh, ruffle-back, and adjustable spaghetti straps.

$69.90

4.8 star rating

A stunning yellow mermaid dress with a glitter finish and sultry open back for formal events.

$99.90

4.5 star rating

A navy blue velvet mermaid dress with sequin embroidery and an open lace-up back.

Sale

$63 $89.90 30% off

3.75 star rating

A green sequin mermaid dress with a boho pattern, adjustable straps, and a floor-length hem.

Sale

$69.97 $149.90 53% off

5 star rating

An ivory mermaid gown with 3-D floral appliques and a stunning lace-up back design.

$149.90

4.25 star rating

A white mermaid dress with a beaded pattern, open-back design, and adjustable spaghetti straps.

$59.90

4 star rating

A mauve mesh mermaid dress with a sweetheart neckline, lace-up back, and elegant ruching.

$79.90

4 star rating

A chic black mermaid dress featuring a sheer mesh corset bodice and adjustable crisscross straps.

$119.90 - $129.90

4.75 star rating

A coral sequin mermaid dress featuring a corset bodice, high slit, and sweetheart neckline.

$74.90

3.75 star rating

A black glitter knit mermaid dress with a halter neckline and high front wrap slit.

$74.90

4.5 star rating

A black glitter knit mermaid dress with a lace-up back and flattering V-neckline.

$84.90

5 star rating

A silver metallic mermaid dress with a cowl neckline and alluring open-back design.

$119.90

4.5 star rating

A red sequin mermaid dress with a low back, padded bust, and high front slit.

Sale

$39.97 $79.90 50% off

4.75 star rating

A glamorous green mermaid dress with glitter fabric, lace-up design, and a high front slit.

Sale

$9.97 $49.90 80% off

4.75 star rating

A chic yellow mermaid dress with a cowl neckline and adjustable spaghetti straps in stretchy knit fabric.

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Windsor Rowena Sequin Mermaid Dress in Navy Blue
(166) 4.7228913 star rating

Chic and glamorous, the Rowena sequin mermaid long dress will stylishly elevate your formal night-out look. With a lace-up strap design and fitted mermaid silhouette with a high slit, you'll deliver stunning style. Fit & FeaturesSheer mesh fabric, knit lining, moderate stretch, embroidered sequin scroll design, Sleeveless square neckline, padded bust, Spaghetti straps, open back, lace-up strap design, tie closure, Lower back zipper with hook and eye closure, High waist seam, Fitted floor-length mermaid silhouette, high front slit, Runs true to size, Where to Wear:Prom, black-tie parties and galas, fancy engagement parties Free Shipping on All Orders Over $75. | Windsor Rowena Sequin Mermaid Dress in Navy Blue | Size: M | Knit Fabric/Mesh Fabric/Sheer Mesh Fabric

Windsor Lola Formal High Slit Glitzy Glitter Dress in Navy Blue
Sale
(59) 4.4576273 star rating

Flaunt your glam style in the fabulous Lola high slit glitter dress! She features a trendy cowl neckline with a slim-fit bodice, a floor-sweeping silhouette with a sultry high side slit to elongate your legs, and a form-hugging fit. She is composed of glitzy glitter knit fabric that offers a curve-hugging fit with a moderate stretch. Pair this gorgeous long dress with a sleek ring set to add some glamour to your look for your special occasion. Fit & FeaturesCowl neckline, spaghetti straps, Slim-fit bodice, form-hugging fit, Floor-length silhouette, Thigh-high side slit, Glitter knit fabric, mini-length inner knit lining, moderate stretch, Sticky bra recommended, Runs true to size, The saturation of glitter varies. Glitter may transfer. Free Shipping on All Orders Over $75. | Windsor Lola Formal High Slit Glitzy Glitter Dress in Navy Blue | Size: L | Knit Fabric

Sophie Glitter Knit Mermaid Dress in Navy Blue
(36) 4.4166665 star rating

Effortlessly elegant, the Sophie glitter knit mermaid dress would be a stunning choice for a formal gala. She features a square neckline, short puff sleeves, a partially open back with a lace-up strappy design for a customized fit, a high waist seam, a floor-length hem, and a mermaid silhouette with a high front slit to showcase your heels. The glitter knit fabric offers a moderate stretch. Complete the look in this long dress with rhinestone statement earrings. Fit & FeaturesSquare neckline, Short puff sleeves, Open back, lace-up strappy design, tie closure, High waist seam, Floor-length hem, mermaid silhouette, front slit, Glitter knit fabric, moderate stretch, Sticky bra or pasties recommended, Runs true to size, Free Shipping on All Orders Over $75. | Windsor Sophie Glitter Knit Mermaid Dress in Navy Blue | Size: S | Knit Fabric/Rhinestone

Windsor Gwendolyn Glitter Knit Bow-Back Mermaid Dress in Light Blue
(31) 4.516129 star rating

The Gwendolyn glitter knit bow-back mermaid dress will have you sparkling up the night with a glamorous allure. She features a sleeveless square neckline, a bold backless design, a high waist seam, a chic bow accent at the lower back with a flowy floor-length train, a floor-sweeping hem with a mermaid silhouette, and a form-hugging fit. Style this long dress with a rhinestone clutch for a black-tie wedding. Fit & FeaturesSleeveless square neckline, spaghetti straps, Backless design, high waist seam, Bow-back accent, floor-length train, Floor-sweeping hem, mermaid silhouette, Form-hugging fit, Glitter knit fabric, Sticky bra or pasties recommended, Runs true to size, Free Shipping on All Orders Over $75. | Windsor Gwendolyn Glitter Knit Bow-Back Mermaid Dress in Light Blue | Size: L | Knit Fabric/Rhinestone

Lucille Formal Satin Mermaid Dress in Coral
(29) 4.827586 star rating

The Lucille formal satin dress will have you looking and feeling radiant and luxe! The dress captivates with a lace-up back, mermaid silhouette, and high front slit for effortless allure. Fit & FeaturesLined satin knit fabric, minimal stretch, Sleeveless square neckline, padded bust, adjustable spaghetti straps, Open lace-up back design, zipper and hook-eye closure, Fitted bodice, front ruched seam, high-cut slit, Mermaid silhouette, floor-length hem, Runs true to size, Where to Wear:Prom, weddings, bridesmaids, black tie galas, red-carpet events, nights at the opera or theatre, big milestone celebrations Free Shipping on All Orders Over $75. | Windsor Lucille Formal Satin Mermaid Dress in Coral | Size: L | Knit Fabric/Satin Fabric

Alicia Off-The-Shoulder Mermaid Formal Dress in Green
(23) 4.826087 star rating

Spend an evening in the timeless elegance of the Alicia floor-length formal dress and feel like a work of art! The side ruched seams accentuate your curves along the mermaid silhouette, and the high front slit adds a touch of drama to the floor-length hem. Fit & FeaturesSmooth knit fabric lined with stretchy knit, Padded bra cups, Back zipper and hook-eye closure, High front slit, Mermaid silhouette, Runs true to size, Where to Wear:Prom, galas, black tie parties, weddings, bridesmaids, nights at the theatre and opera, red-carpets Free Shipping on All Orders Over $75. | Windsor Alicia Off-The-Shoulder Mermaid Formal Dress in Green | Size: S | Knit Fabric

Priscilla Formal Satin Strapless Mermaid Dress in Taupe
(23) 4.347826 star rating

Make it an elegant entrance in the Priscilla formal satin dress with a curve-hugging mermaid silhouette and floor-sweeping hem for dramatic flair. Fit & FeaturesLined silky satin fabric, minimal stretch, Strapless sweetheart neckline, Pleated, lightly padded bust, non-slip grip lining, Slim-fit bodice, high waist seam, hip-hugging fit, Floor-sweeping hem, mermaid silhouette, Runs true to size, Where to Wear:Prom, weddings, bridesmaids, black-tie galas and events, and fancy milestone celebrations. Free Shipping on All Orders Over $75. | Windsor Priscilla Formal Satin Strapless Mermaid Dress in Taupe | Size: M | Satin Fabric

Kathie Formal Satin One-Shoulder Dress in Gold-2
(22) 4.7727275 star rating

Sleek and sultry, the Kathie formal satin dress is destined to shine at banquets, galas, and black-tie weddings! She features a sophisticated one-shoulder neckline, a wide shoulder strap, a pleated side seam, a mermaid silhouette, and an asymmetrical high front slit along her graceful long hem. The formal dress is composed of luxurious satin-lined fabric with a sheen effect and minimal stretch. Complete the look with hoop earrings. Fit & FeaturesOne-shoulder neckline, wide shoulder strap, Back zipper and hook-eye closure, Pleated side seam, asymmetrical high front slit, Mermaid silhouette, long hem, Lined silky satin fabric, sheen effect, minimal stretch, Strapless bra or pasties recommended, Runs true to size, Free Shipping on All Orders Over $75. | Windsor Kathie Formal Satin One-Shoulder Dress in Gold-2 | Size: M | Satin Fabric

Windsor Shay Formal Lurex Glitter Dress in Rose Gold
(20) 4.45 star rating

Stun in the Shay formal glitter dress that makes your entrance that much more glam! Shay features a mermaid silhouette that flaunts your beautiful curves and a floor-length hem for a hint of drama. Fit & FeaturesLine glitter lurex fabric, V-neckline, padded bra cups, Adjustable spaghetti straps, Ruching, mermaid silhouette, Wide banded hem, train , Runs true to size, Extra glitter for maximum sparkle - may have some natural fallout , Where to Wear: Prom, black tie galas and events, red-carpet events, upscale birthdays Free Shipping on All Orders Over $75. | Windsor Shay Formal Lurex Glitter Dress in Rose Gold | Size: XS

Windsor Deyna Formal Mesh Off-The-Shoulder Long Dress in Periwinkle
(20) 4.75 star rating

Radiate sexy elegance in the Deyna formal long dress perfect for your upcoming black tie soirees! The dress accentuates your curves with side ruched seams and mermaid silhouette create a stunning and flattering shape, while the floor-length hem adds sophistication. Fit & FeaturesAiry mesh fabric, full knit stretchy lining, Off-the-shoulder neckline, ruffled cuffs, cascading ruffles, Back zipper and hook-eye closure, Flexible boning inserts in the bodice, Side ruched seams, mermaid silhouette, floor-length hem, Runs true to size, Where to Wear:Prom, weddings, fancy garden parties, and dressed-up events. Free Shipping on All Orders Over $75. | Windsor Deyna Formal Mesh Off-The-Shoulder Long Dress in Periwinkle | Size: L | Knit Fabric/Mesh Fabric/Mesh Fabric

Mermaid Party Dresses

Ready to make some waves, gorgeous? When it comes to a mermaid party dress, it’s all about channeling your inner siren and letting those shimmering, show-stopping vibes take over the night. Whether you’re prepping for a dress gala, a birthday bash, or just living your best life at a mermaid-themed soirée, these dresses are made for turning heads and living out your sparkling fantasy. Think iridescent fabrics that catch every glimmer of light, curve-hugging silhouettes that serve up main character energy, and details like sequins, ruching, and dramatic trains that make you want to twirl until sunrise. There’s something about slipping into a mermaid party dress for women that instantly transforms your confidence—suddenly you’re not just attending the party, you *are* the party. And if you’re thinking of gifting one to your bestie or sister, trust: it’s the kind of gift that gets squeals, happy dances, and a million mirror selfies. The magic of a mermaid theme dress is that it’s not just a look, it’s a whole mood—one that says, “I’m here, I’m unforgettable, and I’ve got the receipts (and the stiletto blisters) to prove it.”

Choosing the perfect mermaid party dress is like picking your alter ego for the night. Are you going for the full-on drama with a Windsor Gwendolyn Bow Dress, all about that statement bow and luxe feel? Or maybe you want to keep it sleek and sultry with a bodycon fit that hugs every curve and lets your confidence do all the talking. The beauty of the mermaid silhouette is that it’s universally flattering, cinching at the waist and flaring at just the right spot for a look that’s equal parts glam and goddess. If you’ve got a big event on your social calendar—a dress gala, a milestone birthday, or a themed girls’ night—lean into bold colors, metallics, and playful embellishments that make you stand out in every group pic. And don’t forget the finishing touches: a killer pair of heels, a swipe of gloss, and the kind of jewelry that says “I’m not afraid to sparkle a little brighter than everyone else.” These dresses are made for dancing, for laughing, for living in the moment and making memories you’ll talk about for years. If you’re the friend who’s always first on the dance floor (or the one who drags everyone else up there), a mermaid party dress is basically your superhero cape.

No matter what the invite says, if the vibe is fun, fearless, and a little bit extra, you’re in the right place. Mermaid party dresses aren’t just for the main event—they’re for every girl who wants to feel powerful, playful, and a little bit legendary. Maybe you’re shopping for your first big night out or adding another showstopper to your closet’s hall of fame. Either way, you deserve a dress that makes you feel like you could conquer the world (or at least the dance floor). For the ultimate inspo and a lineup that’s as bold as your plans, check out our Party Mermaid Dresses collection and get ready to steal the spotlight, one twirl at a time.

Top Picks For Mermaid Party Dresses