Long Mermaid Dresses
Long mermaid dresses are the perfect blend of elegance and allure, designed to make you feel like the absolute queen you are. Picture yourself gliding into any event, turning heads and leaving a trail of dropped jaws in your wake. These stunning gowns hug your curves in all the right places, flaring out into an exquisite silhouette that screams sophistication with a side of sass. Whether you're gracing a gala, attending prom, or making a statement at a wedding, long mermaid dresses ensure you're the star of the show. So go ahead, let your inner siren shine and own every room you step into!
$69.90
A captivating blue mermaid dress featuring glitter fabric, an open back, and a sweetheart neckline.
$89.90
A glamorous burgundy mermaid dress with glitter knit fabric, ruching, and a stylish back cutout.
$69.90
A navy blue mermaid dress with a strappy open back and sleek, stretchy knit fabric.
$109.90
A chic navy blue mermaid dress with sequins, featuring a lace-up back and thigh-high slit.
$109.90 - $149.90
A pink mermaid silhouette dress with sequin-scroll pattern, V-neckline, and lace-up back.
$99.90
A mint sequin scroll mermaid dress with a strappy back, perfect for prom or black-tie events.
$69.90
A navy blue knit mermaid dress featuring lace trim, flutter straps, ruching, and a lace-up back.
$89.90
A lavender mermaid gown with a lace-up back and glitter lurex fabric for formal occasions.
$99.90
A light blue mermaid dress with sequin embroidery, cutout back, and high front slit.
$24.97 $49.90 50% off
A chic orange mermaid dress with a cowl neckline and adjustable spaghetti straps in stretchy knit fabric.
$29.97 $89.90 67% off
A green sequin mermaid dress with a boho pattern, adjustable straps, and a floor-length hem.
$29.97 $109.90 73% off
A dazzling yellow sequin-embroidered mesh dress with a mermaid silhouette and adjustable spaghetti straps.
$74.90
A navy blue glitter knit mermaid dress with a square neckline and lace-up open back design.
$46 $64.90 29% off
A black crepe formal dress with puff sleeves, lace-up back, and a high-cut slit.
$84.90
A glamorous black glitter knit mermaid dress with a bow-back and floor-length train.
$119.90
A stunning lavender mermaid dress featuring sequin scrolls, lace-up back, and high slit.
$49.90
A coral satin mermaid dress featuring a lace-up back, high slit, and adjustable spaghetti straps.
$59.90
A stunning black mermaid dress with a cowl neck, lace-up back, and high front slit.
$79.90
A red knit mermaid dress with glitter pattern, cowl neckline, and high front slit.
$69.90
A lavender mesh off-the-shoulder dress with ruched seams and a mermaid silhouette for formal events.
$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 gown with faux pearl embellishments and a flattering sweetheart cowl neckline.
$59.90
A pink mesh mermaid dress featuring side ruching, a cowl neckline, and adjustable spaghetti straps.
$69.90
A green mermaid formal dress with a cowl neckline, crisscross back, and dramatic high front slit.
$74.90
A stunning red mermaid dress with a glitter knit fabric and off-the-shoulder sweetheart neckline.
$69.90
A strapless navy blue mermaid dress in shimmering satin glitter fabric with a pleated bodice.
$77 $109.90 30% off
A stunning royal blue mermaid dress with sequins, adjustable straps, and a high front slit.
$79.90
A stunning white mermaid dress with faux pearl embellishments and a cold shoulder neckline.
$59.90
A navy blue slinky knit mermaid dress featuring a sweetheart neckline, cowl draping, and high front slit.
$59.90
A black crepe mermaid dress with a square halter neckline and elegant high front slit.
$19.97 $69.90 71% off
A pink glitter knit mermaid dress with a lace-up back and high front slit.
$149.90
A white mesh mermaid dress featuring beaded faux pearls and a dramatic open-back halter design.
$69.90
A green knit mermaid dress featuring a halter V-neckline and striking strappy open back design.
$79.90
A sophisticated green off-the-shoulder mermaid dress featuring a sultry wrap slit and padded cups.
$69.90
A green off-the-shoulder mermaid dress with a twisted sweetheart neckline and high front slit.
$59.90
A strapless magenta mermaid dress featuring floral mesh, a sweetheart neckline, and a draped cowl overlay.
$69.90
A brown mermaid formal dress featuring a halter V-neckline and open back in smooth knit fabric.
$64.90
A green knit mermaid dress with a cowl neckline, spaghetti straps, and a high front slit.
$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.
$79.90
A chic black mermaid dress featuring a sheer mesh corset bodice and adjustable crisscross straps.
$84.90
A silver metallic mermaid dress with a cowl neckline and open strappy back for formal events.
$59.90
A mauve mesh mermaid dress featuring a lace-up back, sweetheart neckline, and elegant ruching.
$74.90
A black glitter knit mermaid dress with a halter neckline and high front wrap slit.
$69.90
A black lace mermaid dress featuring a sweetheart neckline and adjustable spaghetti straps for formal occasions.
$79.90
A glamorous green mermaid dress with glitter knit fabric, lace-up back, and padded bra cups.
$69.90
A black glitter crepe mermaid dress with a cutout bodice and high front wrap slit.
$64.90
A wine velvet mermaid dress with a chic ruched halter neckline and partially open back.
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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
Long Mermaid Dresses
Long mermaid dresses aren’t just a look—they’re a whole main character moment, ready to turn any entrance into a scene straight out of your favorite movie. Whether you’re plotting your next big night out, prepping for a formal event, or hunting for the ultimate showstopper for a bestie’s birthday bash, the mermaid silhouette is your ride-or-die for maximum impact. The way a mermaid maxi dress hugs your curves and then flares out with a dramatic sweep? It’s pure magic, sculpting a silhouette that’s equal parts red carpet glam and fairytale energy. Picture yourself gliding across the dance floor, the hem of your flowy mermaid dress swirling like you own the place—because, let’s be real, you totally do. These dresses are designed for the girl who wants to be remembered, the one who’s never afraid to take up space, and who knows that a little drama never hurt anyone (unless you count jealous exes, but that’s their problem).
Shopping for a long mermaid dress is all about finding the vibe that matches your energy. Maybe you’re into mermaid dresses with sleeves for that extra touch of elegance (and a little coverage for those AC-blasting venues). Or maybe you’re all about the off-shoulder, strapless, or backless looks that let you flex your confidence and your favorite accessories. The best part? These dresses aren’t just for one type of event. Bridesmaids, prom queens, gala guests, and even birthday girls all find their perfect fit in a mermaid dress with sleeves or a sleek, sleeveless style. And if you’re the friend who loves to spoil your squad, gifting a mermaid maxi dress is basically giving someone the power to own any room. The details make all the difference, too—think luxe fabrics that shimmer under the lights, intricate ruching that snatches your waist, or a train that says, “I’m not here to play.” And let’s not forget the color options: from bold jewel tones to classic neutrals, there’s a shade to match every mood and every skin tone. Pair your look with sky-high heels, a killer clutch, and your favorite statement earrings, and you’re set for a night of compliments and unforgettable memories.
No matter what’s on your calendar, long mermaid dresses have a way of turning any occasion into a celebration. They’re the ultimate confidence booster, perfect for anyone who wants to channel their inner goddess and make a lasting impression. Whether you’re shopping for yourself or picking out a gift that’ll make your bestie’s jaw drop, these dresses are a guaranteed win. If you’re ready to take your glam game to the next level, check out our collection of Mermaid Formal Dresses for even more inspo and find the style that’s about to become your new obsession.