Open Back Mermaid Prom Dresses
Open back mermaid prom dresses are having a main character moment, and you’re about to steal the spotlight. Ready to serve drama from every angle? These jaw-dropping styles are all about that curve-hugging fit and show-stopping exits—because why let your entrance have all the fun? Whether you’re going for sultry siren or glam goddess, these dresses are your ticket to being unforgettable. Get ready to turn heads, break hearts, and dance the night away like the queen you are.
$15.97 $69.90 77% off
A pink glitter knit mermaid dress featuring a lace-up back, V-neckline, and high front slit.
$14.97 $109.90 86% off
An orange sequin bodycon dress with a high neckline, open back, and high front slit.
$59.97 $139.90 57% off
A pink chiffon and mesh mermaid dress featuring a sequin-beaded bow pattern and tie-back design.
$109.90
A glamorous navy blue mermaid dress with sequins, a lace-up back, and a thigh-high slit.
$84.90
A glamorous black glitter knit mermaid dress featuring a bow-back design and floor-length train.
$59.90
A mauve floral mesh mermaid dress with a lace-up back, high slit, and floor-length hem.
$79.90
A navy blue mermaid formal dress featuring a lace open back and side ruched seams.
$69.90
A striking red knit mermaid dress featuring a halter V-neckline and dramatic strappy open back.
$39.97 $89.90 56% off
A lavender mermaid gown with a lace-up back and glitter lurex fabric for formal occasions.
$64.90
A wine velvet mermaid dress with a chic ruched halter neckline and partially open back.
$79.90
A pink glitter knit mermaid dress with a lace-up back and adjustable spaghetti straps.
$15.97 $109.90 85% off
A dazzling yellow sequin-embroidered mesh dress with a mermaid silhouette and adjustable spaghetti straps.
$46 $64.90 29% off
A black crepe formal dress with puff sleeves, lace-up back, and high-cut slit for prom.
$19.97 $74.90 73% off
A navy blue glitter knit mermaid dress with a square neckline and lace-up open back.
$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.
$64.90
An elegant green satin mermaid dress with a lace-up back and flattering V-neckline.
$69.90
A navy blue knit mermaid dress featuring lace trim, flutter straps, ruching, and a lace-up back.
$89.90
A glamorous light blue 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.
$79.90
A glamorous black mermaid dress with glitter knit fabric, open back, and high front slit.
$79.90
A royal blue satin mermaid dress with a strappy open back and high front 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 glamorous camel glitter mermaid dress featuring a sultry open back and sweetheart neckline.
$69.90
A brown mermaid formal dress featuring a halter V-neckline and open back in smooth knit fabric.
$19.97 $69.90 71% off
A stunning green satin mermaid dress featuring a lace-up back and elegant high slit.
$69.90
A pink satin mermaid dress with floral print and lace-up back for formal occasions.
$99.90
A light blue mermaid dress with sequin embroidery, cutout back, and high front slit.
$64.90
A sleek black knit mermaid dress featuring a scoop neckline, open back, and high front slit.
$84.90
An enchanting black mermaid dress with glitter mesh, ruffle-back, and adjustable spaghetti straps.
$39.97 $79.90 50% off
A mint column formal dress with an open back, high slit, and ruched seams for elegance.
$64.90
A navy blue knit mermaid dress featuring a cowl neckline, spaghetti straps, and an open tie-back design.
$119.90
An orange mermaid dress with sequin embroidery, lace-up back, and a high front slit.
$99.90
A green velvet mermaid dress with sequin embroidery and an adjustable lace-up open back.
$15.97 $149.90 89% off
A glamorous periwinkle sequin dress with a sultry open back and flattering mermaid silhouette.
$59.90
A mauve mesh mermaid dress featuring a lace-up back, sweetheart neckline, and elegant ruching.
$19.97 $74.90 73% off
A black glitter knit mermaid dress with a lace-up back and flattering V-neckline.
$84.90
A silver metallic mermaid dress with a cowl neckline and open strappy back for formal events.
$119.90
A glamorous periwinkle sequin dress featuring a strappy open back and high front slit.
$119.90
An iridescent light blue sequin mermaid dress featuring sheer mesh, lace-up back, and a dramatic train.
$169.90
A pink mermaid formal dress with bead sequins, lace-up back, and high front slit.
$119.90
A glamorous denim sequin formal dress with a lace-up back and mermaid silhouette.
$79.90
A glamorous brown glitter formal dress featuring a strappy open back and high front slit.
$15.97 $79.90 80% off
A black velvet mermaid dress with an open back, faux pearls, and a dramatic sash accent.
$79.90
A chic black mermaid dress with glitter fabric, lace-up back, and floor-length hem.
$14.97 $99.90 85% off
A lime yellow sequin mermaid dress with a strappy back and elegant floral scroll pattern.
$84.90
A stunning black mermaid dress featuring a glitter knit fabric, strappy open back, and high slit.
$19.97 $69.90 71% off
A coral glitter formal dress with a lace-up back and curve-hugging mermaid silhouette.
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Slip into the luxe vibes of Mayra! Designed to highlight your figure, this formal satin dress delivers a chic form-hugging fit and a high slit for effortless movement. Fit & FeaturesSmooth satin-knit fabric, moderate stretch, Sleeveless square neckline, spaghetti straps, Fitted bodice, side hip pleating, Form-fitting silhouette, high-cut front slit, Floor-length hem, Style runs small, Where to Wear:Prom, weddings, black-tie parties, and upscale events. Free Shipping on All Orders Over $75. | Windsor Mayra Formal Satin Slit Long Dress in Sage | Size: S | Satin Fabric
Create a captivating entrance in this formal wrap dress for your next soiree. All eyes are on you in this stylishly chic long formal dress with a plunging V-neckline to perfectly display a sparkling rhinestone lariat or delicate layers of dainty necklaces. Fit & FeaturesCrepe fabric, moderate stretch, Asymmetrical wrap V-neckline, Adjustable spaghetti straps, Ruched detailing, slim-fit bodice, High front slit, floor-length wrap silhouette, Runs true to size, Where to Wear:Prom, black-tie weddings, and formal parties. Free Shipping on All Orders Over $75. | Windsor Sasha Formal High Slit Wrap Dress in Black | Size: XS | Rhinestone
The Marissa long satin dress brings elegance and sultriness to your formal night. The floor-length gown enhances your curves with a fitted bodice and flattering A-line silhouette while the high front slit provides movement. Fit & FeaturesStretch-satin fabric, non-see-through, double-lined bust, Sleeveless pleated cowl neckline, spaghetti straps, Slim-fit bodice, empire waistline, High front slit, floor-length hem, A-line silhouette, Runs true to size, Where to Wear:Prom, weddings, black-tie soirees, special date nights, and engagement parties. Free Shipping on All Orders Over $75. | Windsor Marissa Formal Satin Cowl Neck Dress in Green | Size: S | Satin Fabric
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
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: M | Rhinestone/Velvet Fabric
Make a sparkly statement at your next soiree in the trendy glam Addison glitter formal dress! Bring radiance to the room in this floor-length dress with a sleek design that fits like a glove. Fit & FeaturesSheer glitter mesh fabric, full knit stretchy lining, Sleeveless cowl neckline, spaghetti straps, High waist seam, Floor-length fitted silhouette, Runs true to size, Where to Wear:Prom, black tie weddings, galas, special date nights, rehearsal dinner Free Shipping on All Orders Over $75. | Windsor Addison Glitter Mesh Formal Dress in Black | Size: XS | Knit Fabric/Mesh Fabric/Mesh Fabric
Embellished with light-catching sequins, the Bethanie formal dress is a clear stunner with a lace-up back and a flattering mermaid silhouette with a floor-length hem. Fit & FeaturesSequin-scroll pattern, mesh fabric, stretch knit lining, Sleeveless V-neckline, padded bust, Lace-up back, zipper and hook-eye closure, Mermaid silhouette, Floor-length hem, Runs true to size, Where to Wear:Prom, black-tie events, formal weddings, and upscale parties. Free Shipping on All Orders Over $75. | Windsor Bethanie Formal Sequin V-Neck Mermaid Dress in Yellow | Size: S | Knit Fabric/Mesh Fabric/Mesh Fabric
Sultry and stunning, the Alisha formal dress will keep all eyes on you. With thin rhinestone detailed straps that give effortless sparkle and a curve-hugging silhouette, and an alluring high slit. Fit & FeaturesLightweight, breathable stretchy fabric, Sleeveless cowl neckline, Rhinestone detailed straps, High waist seam, Floor-length hem, form-fitting silhouette, high slit, Runs true to size, Where to Wear:Prom, glamorous evenings, dinner parties, weddings Free Shipping on All Orders Over $75. | Windsor Alisha Rhinestone Strap Formal Dress in Black | Size: L | Stretchy Fabric/Rhinestone
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
Windsor Rose Formal Mesh Corset Column Dress in Lavender
$29.97 $54.90
45% off
The Rose formal long column dress is the perfect combination of elegance and glamour with a sheer corset trim and high-side slit for effortless allure! Fit & FeaturesMesh fabric, partial stretchy knit lining, Sleeveless sweetheart neckline, cowl pleating, Adjustable spaghetti straps, crisscross open back, Padded bust, sheer corset bodice, flexible boning, Side ruched seams, fitted column silhouette, High-side slit, floor-length hem, Style runs small, Where to Wear:Prom, weddings, bridesmaids, rehearsal dinners, cocktail soirees, and dressed-up date nights. Free Shipping on All Orders Over $75. | Windsor Rose Formal Mesh Corset Column Dress in Lavender | Size: L | Knit Fabric/Mesh Fabric
Open Back Mermaid Prom Dresses
When it comes to making a grand entrance, nothing turns heads quite like open back mermaid prom dresses. These stunners are for the bold, the fearless, the ones who want to live out their red-carpet dreams on the dance floor and aren’t afraid to serve main character energy all night long. The magic of a mermaid silhouette? It hugs your curves in all the right places, flaring out just below the knee for that dramatic, jaw-dropping effect—think “wow” with a side of “who is she?” An open back only ups the ante, adding a hint of sultry sophistication and letting you show off that confidence you’ve been working on all year. Whether you’re the queen of glitz or a minimalist with a love for sleek lines, these dresses are designed to make you feel like the ultimate prom goddess. They’re also a top pick for anyone who wants to stand out in those endless prom photos—trust, the open back is a detail that’ll have everyone double-tapping your posts and sliding into your DMs asking where you found your look.
Shopping for long mermaid prom dresses is basically a rite of passage. You’re not just picking a dress—you’re choosing the vibe for one of the most unforgettable nights of your life. Think about what makes you feel like *you*: maybe it’s a dress with a little sparkle that catches the light with every spin, or maybe it’s a sleek, satin finish that feels like pure luxury. Open back styles let you play with different hair and accessory moments, too. Imagine a loose, romantic updo with a few face-framing waves, or go bold with a slick ponytail and statement earrings—either way, you’ll be serving drama from every angle. And if you’re the friend who always goes all out for her girls, these dresses make incredible gifts for someone you want to spoil with a little extra glamour. Picture her face lighting up when she unwraps a dress that’s as unforgettable as she is. The best part? These show-stopping gowns aren’t just for prom. They’re perfect for any formal event where you want to channel your inner VIP, from banquets to black-tie weddings, or even that fancy gala you’ve been manifesting an invite to.
Choosing the perfect open back mermaid prom dress is all about balancing comfort with that “wow” factor. You want to be able to dance, pose, and live your best life without feeling restricted. Look for details like adjustable straps, supportive built-in cups, or a little stretch in the fabric so you can move like you own the place. And don’t forget the finishing touches—nude or metallic heels, a clutch that fits your must-haves, and maybe a swipe of highlighter to catch the light on your shoulders and back. If you’re ready to dive into the world of show-stopping silhouettes and unforgettable entrances, check out the collection of Long Open Back Prom Dresses for even more inspo. Whether you’re going solo, rolling deep with your besties, or hoping to snag a crown, these dresses are all about making you feel unstoppable. Prom night is your moment—go ahead and make it legendary.