Long Mermaid Prom Dresses
Dive into the enchanting world of long mermaid prom dresses where every step you take is a swish of elegance and a splash of glam! These stunning gowns are your ticket to making a jaw-dropping entrance and leaving a trail of admirers in your wake. With their curve-hugging silhouettes and dramatic flares, you'll feel like the queen of the oceanic ball, ready to dance the night away. Whether you're channeling red carpet vibes or aiming for that fairy-tale fantasy, our collection of long mermaid prom dresses promises to make waves at any event. So go ahead, let your inner siren shine and own that spotlight like the fearless fashionista you are!
$89.90
A luxurious green knit mermaid dress featuring an off-the-shoulder neckline and dramatic high front slit.
$109.90
A chic navy blue mermaid dress with sequins, a square neckline, and a thigh-high slit.
$46 $64.90 29% off
A black crepe formal dress with puff sleeves, lace-up back, and a high-cut slit.
$84.90
A black glitter knit mermaid dress with a bow-back design and floor-length train for formal occasions.
$119.90
A glamorous lavender mermaid dress with 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.
$69.90
A stunning denim satin mermaid dress with a strapless sweetheart neckline and floor-sweeping hem.
$69.90
A sage mesh off-the-shoulder mermaid dress with ruffled accents and flexible boning inserts.
$99.90
A mint sequin scroll mermaid dress with a strappy back, perfect for prom or black-tie events.
$64.90
An elegant green satin mermaid dress with a lace-up back and flattering V-neckline.
$69.90
A burgundy knit formal dress with a lace-up back, ruching, and a mermaid silhouette.
$59.90
A red floral mesh mermaid dress with a lace-up back, high slit, and floor-length hem.
$59.90
A stunning red mesh mermaid dress with ruched seams and adjustable spaghetti straps for formal occasions.
$19.97 $79.90 75% off
A light blue mesh mermaid gown with faux pearl embellishments and a flattering sweetheart cowl neckline.
$69.90
A stunning black sleeveless mermaid dress with glitter fabric and adjustable spaghetti straps for formal events.
$89.90
A light blue glitter knit mermaid dress with ruching, a scoop neckline, and a stylish back cutout.
$74.90
An elegant red mermaid dress with a glitter knit fabric and off-the-shoulder sweetheart neckline.
$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.
$19.97 $69.90 71% off
A strapless navy blue mermaid dress in shimmering satin glitter with a pleated bodice and high slit.
$89.90
A chambray glitter knit mermaid dress with a lace-up back and high side slit.
$15.97 $69.90 77% off
A pink glitter knit mermaid dress with a lace-up back and high front slit.
$79.90
A navy blue mermaid dress with a glittery finish, lace-up back, and high front slit.
$19.97 $99.90 80% off
A sage mermaid formal dress featuring a halter V-neckline and elegant tie-back design.
$69.90
A navy blue mermaid dress with a strappy open back and sleek, stretchy knit fabric.
$79.90
A glamorous black mermaid dress with glitter knit fabric, open back, and high front slit.
$19.97 $139.90 86% off
A pink chiffon and mesh mermaid dress featuring a sequin-beaded bow pattern and tie-back design.
$69.90
A black glitter crepe mermaid dress with cutout strappy bodice and high front wrap slit.
$19.97 $64.90 69% off
A light blue mermaid dress with glitter, lace-up back, and high front wrap slit for formal events.
$69.90
A brown mermaid formal dress featuring a halter V-neckline and open back in smooth knit fabric.
$15.97 $69.90 77% off
A stunning orange satin mermaid dress featuring a lace-up back and elegant wrap silhouette.
$59.90
A stunning periwinkle mesh dress with a ruched mermaid silhouette and off-the-shoulder neckline.
$79.90
A stunning black satin mermaid dress with a high slit, adjustable straps, and a romantic train.
$89.90
A stunning black sequin glitter dress with a sheer corset bodice and mermaid silhouette.
$19.97 $119.90 83% off
A lime yellow sequin mermaid dress with a corset bodice and high front slit.
$99.90
A yellow mermaid sequin dress with a cutout back, high slit, and adjustable spaghetti straps.
$79.90
A white formal dress featuring faux pearl embroidery, a sweetheart neckline, and a high side slit.
$99.90
A yellow satin mermaid dress with beaded applique neckline and adjustable spaghetti straps.
$19.97 $64.90 69% off
A green knit mermaid dress with a cowl neckline, spaghetti straps, and a high front slit.
$119.90
An orange mermaid dress with sequin embroidery, lace-up back, and a high front slit.
$89.90
A sophisticated navy blue satin dress with a strapless neckline and pleated mermaid silhouette.
$19.97 $79.90 75% off
A chic black mermaid dress featuring a sheer mesh corset bodice and adjustable crisscross straps.
$99.90
A green velvet mermaid dress with sequin details and an adjustable lace-up back for formal events.
$169.90
A pink mermaid formal dress with bead sequins, lace-up back, and high front slit.
$59.90
A mauve mesh mermaid dress with a sweetheart neckline and lace-up back for formal occasions.
$19.97 $74.90 73% off
A black glitter knit mermaid dress with a lace-up back and side ruched seams.
$119.90
An iridescent light blue mesh mermaid dress featuring sequin embroidery, lace-up back, and a dramatic train.
$74.90
A black glitter knit mermaid dress with a halter neckline and high front wrap slit.
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Lavish yourself with a luxe formal dress that elevates your special occasion outfit! Cheyenne features a one-shoulder neckline, a wired V-neck bust, a fitted long sleeve, a high side slit on the floor-length hem, and a curve-hugging A-line silhouette. The long dress is composed of a lined velvet fabric that offers a moderate stretch. Complete the look with rhinestone heels and a sphere clutch. Fit & FeaturesOne-shoulder neckline, wired V-neck bust, Fitted long sleeve, High side slit, floor-length hem, A-line silhouette, Lined velvet fabric, Form-hugging fit, moderate stretch, Strapless or sticky bra recommended, Runs true to size, Free Shipping on All Orders Over $75. | Windsor Cheyenne Formal One-Shoulder Velvet Dress in Black-2 | Size: S | Rhinestone/Velvet Fabric
Dare to stun in the Jamie satin formal dress crafted with silky satin fabric for a gorgeous sheen. The bold plunge halter neckline and open lace-up back will turn heads while the fitted column silhouette flaunts your curves. Fit & FeaturesSilky satin fabric, short knit stretchy lining, Plunge halter V-neckline, shoulder straps, padded bra cups, Lace-up open back, lower zipper with hook-eye closure, High side slit, Fitted column silhouette, Floor-length hem, Runs true to size, Where to Wear:Prom, weddings, galas, and black-tie soirees. Free Shipping on All Orders Over $75. | Windsor Jamie Lace-Up Satin Formal Column Dress in Red | Size: XS | Knit Fabric/Satin Fabric
Sophistication meets sultry on the Marjorie formal dress perfect for cocktail parties and dressy family get-togethers. She features sheer chiffon peasant long sleeves, a square neckline, a bodycon silhouette, and a front ruched seam leading to the skin-flaunting slit along her midi-length hem. The formal dress is composed of a lined crepe fabric with a moderate stretch. Style with a chic clutch and heels to complete the look! Fit & FeaturesSheer chiffon peasant long sleeves, square neckline, Front ruched seam, slit detail, Bodycon silhouette, Midi-length hem, Lined crepe fabric, moderate stretch, Bra-friendly design, Runs true to size, Free Shipping on All Orders Over $75. | Windsor Marjorie Formal Chiffon Sleeve Midi Dress in White | Size: S | Chiffon/Crepe Fabric
A chic staple skater dress featuring a flirty off-the-shoulder folded neckline and a short-length perfect for styling with boots or heels. Fit & FeaturesRibbed knit fabric with plenty of stretch, Off-the-shoulder neckline, fold-over accent, Long fitted sleeves, Short-length hem, Skater silhouette, Runs true to size, Free Shipping on All Orders Over $75. | Windsor Chic Staple Ribbed Knit Skater Dress in Black | Size: M | Knit Fabric
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: L | Knit Fabric
A sparkling sequin scroll pattern adds beauty and shine to the glamorous Saige formal long dress! With a lace-up back that turns heads, a curve-hugging mermaid silhouette, and a high slit for a gorgeous look. Fit & FeaturesSequin scroll pattern, mesh fabric, stretchy full knit lining, Sleeveless plunge V-neckline, padded bust, Spaghetti straps, open lace-up back detail, Back zipper and hook-eye closure, Mermaid silhouette, floor-length hem, Runs true to size, Where to Wear:Prom, black-tie events, glam functions, and parties. Free Shipping on All Orders Over $75. | Windsor Saige Formal Sequin Lace-Up Mermaid Dress in Lavender | Size: XS | Knit Fabric/Mesh Fabric/Mesh 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
Bring the romantic allure to the evening affair in the Marylou lace mesh plunge formal dress! She embodies flirtatious style in a sleeveless plunge V-neckline with a built-in padded bust and adjustable spaghetti straps on her empire waist bodice. The sparkly embroidered lace mesh fabric effortlessly flows into a floor-length silhouette with a high-side slit to showcase some legs. She also features a curve-conscious silhouette to flaunt your stunning figure! Complete the look in an elegant hair clip. Fit & FeaturesPlunge V-neckline, adjustable spaghetti straps, Adhesive bra recommended, built-in padded bust, High side slit, back zipper, hook and eye closure, Empire waist, form-fitting silhouette, Floor-length hem, Sparkly embroidered lace mesh fabric, full knit lining, moderate stretch, Runs true to size, Free Shipping on All Orders Over $75. | Windsor Marylou Lace Mesh Plunge Neck Formal Dress in Black | Size: L | Knit Fabric/Mesh Fabric/Mesh 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 Green | 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 Brown | Size: L | Satin Fabric
Long Mermaid Prom Dresses
When it comes to creating a moment that’s pure main character energy, nothing beats the drama and allure of a long mermaid prom dress. Picture this: you glide into the room, every eye catching the way your dress hugs your curves, then flares out just so at the hem—total Hollywood red carpet vibes. This is the look for the girls who want to make an entrance and leave a little sparkle behind. Whether you’re the prom queen, the life of the afterparty, or the friend with the best playlist, a mermaid silhouette is your secret weapon for turning heads and dropping jaws. These dresses are made for the bold, the fearless, and the ones who know that confidence is the best accessory. With details like luxe fabrics, intricate embellishments, and swoon-worthy trains, a windsor mermaid prom dress isn’t just a piece of clothing—it’s an experience, a memory, and a total power move rolled into one.
Choosing the perfect long mermaid prom dress is all about finding the one that matches your vibe and your vision for the night. Maybe you’re all about that hourglass silhouette, wanting to show off your shape and feel like a total goddess. Or maybe you’re dreaming of a dramatic train that leaves a trail of “where did she get that?” whispers in your wake. Think about what makes you feel unstoppable—whether it’s a bold color, a hint of sparkle, or a daring neckline. These dresses are also a go-to pick for anyone with a flair for the glamorous, making them a killer gift idea for your bestie who’s got a big event coming up or your sister who’s ready to own the dance floor. And let’s be real: the mermaid shape isn’t just for prom night. It’s the kind of look that begs to be worn again, whether it’s for a formal, a gala, or any occasion where you want to channel your inner siren. The best part? With so many options, you can totally find a dress that fits your budget, your body, and your wildest prom dreams.
If you’re ready to dive into the world of mermaid silhouettes, you’re in the right place. From the moment you slip into a long mermaid prom dress, you’ll know you’re not just dressed—you’re transformed. The fit, the flare, the feeling of pure confidence—it all adds up to a night you’ll never forget. For inspo, style tips, and a lineup of the most jaw-dropping gowns, check out our curated collection of Mermaid Silhouette Prom Dresses to find your perfect match. Trust, your prom night glow-up starts here.