Mermaid Formal Dresses
Dive into the dreamy world of mermaid formal dresses, where elegance meets a splash of enchantment! These stunning silhouettes hug your curves in all the right places and fan out into a mesmerizing fishtail finish, making you feel like the star of your own fairytale. Whether you're gracing a gala, owning prom night, or stealing the spotlight at any formal event, these dresses are your ticket to unforgettable style. Get ready to turn heads and leave a trail of admirers in your wake, because with these mermaid vibes, you're not just walking into a room—you're making waves!
$109.90 - $149.90
A pink mermaid silhouette dress with sequin-scroll pattern, V-neckline, and lace-up back.
$69.90
A green sleeveless mermaid dress with glitter fabric, adjustable straps, and a floor-length hem.
$69.90
A taupe satin strapless mermaid dress with a sweetheart neckline and chic pleated detailing.
$59.90
A maroon knit mermaid dress featuring a sweetheart neckline, cowl draping, and a high front slit.
$69.90
A brown mermaid formal dress featuring a halter V-neckline and open back in smooth knit fabric.
$69.90
A green mermaid formal dress with a cowl neckline, crisscross back, and dramatic high front slit.
$99.90
A sage mermaid formal dress featuring a halter V-neckline and elegant tie-back design.
$159.90
A sultry red strapless mermaid dress featuring a lace corset bodice and high front wrap slit.
$69.90
A rust-colored knit mermaid dress featuring a halter V-neckline and striking strappy open back.
$69.90
A captivating blue mermaid dress featuring glitter fabric, an open back, and a sweetheart neckline.
$109.90
A chic navy blue mermaid dress with sequins, featuring a lace-up back and thigh-high slit.
$74.90
A navy blue glitter knit mermaid dress with a square neckline and lace-up open back.
$77 $109.90 30% off
A stunning royal blue mermaid dress with sequins, adjustable straps, and a high front slit.
$19.97 $69.90 71% off
A pink glitter knit mermaid dress featuring a lace-up back, V-neckline, and high front slit.
$139.90
A pink mermaid silhouette dress with sequin-beaded bow pattern and chiffon tie-back design.
$76.90
A navy blue mermaid dress with a chiffon tie-back and floral velvet pattern for formal occasions.
$99.90
A mint sequin scroll mermaid dress with a strappy back, perfect for prom or black-tie events.
$79.90
A black knit mermaid dress with glitter, cowl neckline, and high slit for formal occasions.
$64.90
An elegant green satin mermaid dress with a lace-up back and flattering V-neckline.
$84.90
A sage sequin formal dress with an asymmetrical one-shoulder neckline and mermaid silhouette.
$69.90
A navy blue mermaid dress with a strappy open back and sleek, stretchy knit fabric.
$79.90
A royal blue satin mermaid dress with a strappy open back and high front slit.
$59.90
A pink lace formal dress featuring a corset bodice and mermaid silhouette with a high front slit.
$64.90
An olive mermaid formal dress with a cowl neckline and elegant open tie-back design.
$49.90
A coral satin mermaid dress featuring a lace-up back, high slit, and adjustable spaghetti straps.
$89.90
A glamorous yellow glitter knit mermaid dress with ruching, spaghetti straps, and a stylish back cutout.
$79.90
A stunning white mermaid dress with faux pearl embellishments and a cold shoulder neckline.
$74.90
A navy blue mermaid dress with a tie-back design, high slit, and stretchy knit fabric.
$69.90
A green off-the-shoulder mermaid dress with a twisted sweetheart neckline and high front slit.
$69.90
A pink off-the-shoulder mermaid dress with glitter fabric, ruched bust, and high front slit.
$64.90
A green knit mermaid dress with a cowl neckline, spaghetti straps, and a high front slit.
$29.97 $89.90 67% off
A green sequin mermaid dress with a boho pattern, adjustable straps, and a floor-length hem.
$59.90
A mauve mesh mermaid dress with a sweetheart neckline and lace-up back for formal occasions.
$119.90
A stunning lavender mermaid dress featuring sequin scrolls, lace-up back, and high slit.
$89.90
A black knit mermaid dress featuring an off-the-shoulder neckline and dramatic high front slit.
$79.90
A light blue mesh mermaid dress with faux pearl embellishments and a flattering sweetheart cowl neckline.
$74.90
A red glitter knit mermaid dress with an off-the-shoulder neckline and high front wrap slit.
$149.90
A white mesh mermaid dress featuring beaded faux pearls and a dramatic open-back halter design.
$29.97 $79.90 62% off
A black glitter mermaid dress with a lace-up back, square neckline, and padded bra cups.
$79.90
A sophisticated green off-the-shoulder mermaid dress featuring a sultry wrap slit and padded cups.
$59.90
A strapless magenta mermaid dress featuring floral mesh, a sweetheart neckline, and a draped cowl overlay.
$69.90
A black glitter crepe knit mermaid dress with a cutout bodice and high front wrap slit.
$89.90
A sage mermaid silhouette dress with a lace-up back and glitter lurex fabric for formal events.
$79.90
A wine-colored satin mermaid dress with a high slit and elegant train for formal occasions.
$109.90
A glamorous lavender mermaid dress with sequin embellishments, lace-up back, and sheer corset bodice.
$69.90
A blue floral crepe mermaid dress with a sweetheart neckline and high front slit.
$89.90
A stunning black mermaid dress featuring a semi-sheer lace corset bodice and adjustable spaghetti straps.
$14.97 $99.90 85% off
A stunning yellow strapless mermaid dress with sequin embellishments, cutout back, and high front slit.
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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
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
The Gwendolyn glitter knit bow-back mermaid dress will have you sparkling up the night with a glamorous allure! Make your entrance in this floor-length gown designed to turn heads with a curve-flaunting mermaid fit and backless design. Fit & FeaturesGlitter knit fabric, moderate stretch, Square neckline, spaghetti straps, Backless design, high waist seam, Bow-back accent, floor-length train, Floor-sweeping hem, mermaid silhouette, Runs true to size, Extra glitter for maximum sparkle - may have some natural fallout, Where to Wear:Weddings, black tie galas, formal dances, big birthday events, rehearsal dinners, engagement parties, red carpet occasions, upscale glam parties Free Shipping on All Orders Over $75. | Windsor Gwendolyn Glitter Knit Bow-Back Mermaid Dress in Black | Size: S | Knit Fabric
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
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 Sage | Size: L | Satin Fabric
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 Brown | Size: M | Knit Fabric
Flattery will get you everywhere in the Delia formal long dress that boasts a flattering mermaid silhouette with a high front slit for effortless allure all evening! Fit & FeaturesLined smooth knit fabric, moderate stretch, Sleeveless cowl neck, pleating, Spaghetti straps, lace-up back, Mermaid silhouette, High front slit, floor-length hem, Runs true to size, Where to Wear:Prom, weddings, bridesmaids, engagement parties, rehearsal dinners, milestone celebrations, dinner parties, and dressy date nights. Free Shipping on All Orders Over $75. | Windsor Delia Formal Cowl Neck Long Dress in Mauve | Size: XL | Knit Fabric
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
Prepare to make a grand entrance in the Ashelyn glitter long formal dress looking like a true masterpiece for prom or special birthday events! Her luxurious knit fabric boasts a mesmerizing glitter pattern, while the side ruching and mermaid silhouette accentuate your curves while the high front slit shows off your shoes of the night. The cowl neckline and padded bra cups offer a flattering and comfortable fit. Style this formal gown with glam earrings and a hair accessory for a stunning look all evening! Fit & FeaturesGlitter pattern, knit fabric lined with jersey knit, Padded bra cups, Adjustable spaghetti straps, High front slit, Back zipper and hook-eye closure, Mermaid silhouette, floor-length, Runs true to size, Free Shipping on All Orders Over $75. | Windsor Ashelyn Cowl Neck Glitter Mermaid Formal Dress in Black | Size: XS | Knit Fabric
Sleek and sophisticated! The Emmie satin formal dress exudes elegance with a lace-up back and flattering mermaid silhouette that accentuates your figure. Fit & FeaturesStretchy satin-knit fabric, lined bust, Spaghetti straps, V-neckline, Lace-up back, Mermaid silhouette, floor-length hem, Runs true to size, Where to Wear:Prom, black-tie galas, weddings, bridesmaids, formal parties, and red-carpet events. Free Shipping on All Orders Over $75. | Windsor Emmie Lace-Up Mermaid Satin Formal Dress in Sage | Size: XS | Satin Fabric
Mermaid Formal Dresses
When you’re on the hunt for that jaw-dropping look that’ll have every head turning the second you glide into the room, nothing delivers drama and confidence quite like a mermaid formal dress. There’s just something about that curve-hugging silhouette, the way it sculpts your figure and then flares out with a little extra attitude, that makes you feel like you’re starring in your own fairytale (with a splash of main character energy, obviously). Whether you’re getting ready for prom, a black-tie gala, or a formal wedding, slipping into a marmeid dress is your ticket to feeling absolutely unstoppable. It’s the kind of look that says you’re here to make memories, break hearts, and leave a little sparkle wherever you go. If you’re the girl who lives for a little drama and a lot of compliments, or if you’re shopping for a bestie who deserves to shine, a mermaid dress windsor style is basically a love letter to your boldest, most fabulous self.
Let’s be real—choosing the perfect mermaid formal dress is all about finding the vibe that matches your energy. Maybe you’re all about sleek satins that catch the light with every move, or you want intricate lace details that make you feel like royalty. If you love a little extra, go for a mermaid theme dress with sequins, rhinestones, or a dramatic train that’ll trail behind you like your own personal red carpet. These dresses are made for grand entrances and even grander exits, so don’t hold back. Think about the venue, the dress code, and—most importantly—what makes you feel like the best version of yourself. And if you’re gifting a marmeid dress, you’re basically giving someone permission to steal the spotlight and have the night of their life. Picture your best friend unwrapping that dress and immediately planning her next epic photo op—iconic. And hey, if you’re part of a bridal party and the bride wants her squad to serve mermaid magic, you’ll want to check out our Mermaid Bridesmaid Dresses for even more inspo.
Wearing a mermaid dress isn’t just about looking stunning (though, trust, you will). It’s about the way you feel when you catch your reflection and think, “Yep, that’s me.” It’s the confidence boost that comes with every step, the way the skirt swishes as you dance, and the way you own every room you walk into. These dresses are made for the girls who want to make memories, whether you’re twirling on the dance floor, posing for pics with your ride-or-die crew, or living your best life at a black-tie event. And don’t forget—the right accessories can take your look to the next level, from statement earrings to a killer clutch. When you choose a mermaid formal dress, you’re not just picking out an outfit. You’re setting the stage for an unforgettable night and making sure every moment is as magical as you are.