One Shoulder Black Cocktail Dresses

Ready to break hearts and turn heads? One shoulder black cocktail dresses are your secret weapon for making an entrance that no one will forget. Bold, flirty, and totally iconic, these dresses bring major main character energy to every RSVP. Whether you’re plotting your next night out or just want to serve looks that leave them speechless, it’s time to slip into something daring and let your confidence do the talking. Because with one shoulder black cocktail dresses, you’re not just showing up—you’re shutting it down.

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$39.90

4.8125 star rating

A sultry black one-shoulder bodycon midi dress crafted from smooth, stretchy knit fabric.

$59.90

4.466667 star rating

A black glitter knit bodycon dress with an off-the-shoulder neckline and high slit design.

$36.90

5 star rating

A black glitter knit mini dress with an off-the-shoulder neckline and flirty A-line silhouette.

$59.90

4.2 star rating

A sleek black knit formal dress featuring a one-shoulder neckline and ruffled high side slit.

$64.90

4.5 star rating

A luxe black velvet skater dress with an off-the-shoulder neckline and pleated drop-waist design.

Sale

$9.97 $39.90 75% off

4.5 star rating

A chic black glitter mini dress with an asymmetrical one-shoulder neckline and bodycon fit.

$59.90

4 star rating

A sleek black knit mermaid gown featuring a one-shoulder neckline, side cutout, and attached sash.

$39.90

5 star rating

A sassy black one-shoulder bodycon mini dress in ribbed knit fabric, perfect for parties.

$36.90

5 star rating

A chic black one-shoulder mini dress with a bodycon silhouette and fitted long sleeve.

$59.90

3 star rating

A chic black velvet mermaid dress with a one-shoulder neckline and high front wrap slit.

Sale

$9.97 $44.90 78% off

4 star rating

A black velvet mini dress with a one-shoulder neckline and wrap-around waist cutout.

$59.90

A black mini dress with an asymmetrical one-shoulder design and sparkling rhinestone embellishments.

$59.90

A stunning black mesh formal dress featuring a one-shoulder neckline and elegant mermaid silhouette.

$36.90

A playful black knit mini dress featuring an asymmetrical one-shoulder neckline and flattering skater silhouette.

$69.90

A black glitter skater dress featuring an off-the-shoulder bow neckline and structured corset bodice.

New Arrival

$49.90

A sleek black knit mini dress featuring an off-the-shoulder neckline and flattering bodycon silhouette.

$36.90

4.597403 star rating

An elegant black off-the-shoulder midi dress with a bodycon fit and flared hem in stretchy knit.

$59.90

4.078125 star rating

A black glitter knit formal dress with a cowl neck, cross back, and high front slit.

$89.90

4.84 star rating

A black off-the-shoulder mermaid dress in luxurious knit fabric with a dramatic high front slit.

$74.90

4.375 star rating

A black satin mermaid dress featuring cold-shoulder details, ruched sides, and a dramatic floor-length hem.

$74.90

4.428571 star rating

An elegant black mermaid dress with a glitter knit fabric and off-the-shoulder sweetheart neckline.

$48.90

4.9 star rating

An elegant black off-the-shoulder midi dress with ruched sides and a flattering bodycon fit.

$79.90

5 star rating

A black glitter mesh mermaid dress with off-the-shoulder neckline and sheer long sleeves.

$64.90

5 star rating

An elegant black mesh dress featuring an off-the-shoulder neckline, sheer long sleeves, and a high side slit.

Sale

$9.97 $44.90 78% off

5 star rating

A black glitter mesh mini dress with an off-shoulder neckline and ruched side seams.

$69.90

3 star rating

A chic black satin A-line short dress featuring a low back and a statement bow accent.

$89.90

4.333334 star rating

A black floor-length bodycon dress featuring a sheer lace corset bodice and sultry cold shoulder design.

$44.90

5 star rating

A chic black knit midi dress featuring an off-the-shoulder neckline and pleated faux wrap-front slit.

$59.90

5 star rating

A black mesh mermaid gown featuring an off-the-shoulder neckline, sheer bodice, and ruched silhouette.

$42.90

5 star rating

A black glitter knit midi dress with a cowl neckline, cross-back straps, and high side slit.

$52.90

3 star rating

A chic black mini dress featuring an off-the-shoulder neckline and flared A-line silhouette.

Sale

$15.97 $59.90 73% off

A black off-the-shoulder crepe dress with a sweetheart neckline and ruffled front slit.

$59.90

A black glitter knit midi dress featuring a bodycon fit, low back, and statement bow detail.

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Windsor Mayra Formal Satin Slit Long Dress in Sage
(176) 4.619318 star rating

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:Homecoming, weddings, black-tie parties, galas, military balls, engagement parties, rehearsal dinners, bridal celebrations, birthday events, milestone celebrations Free Shipping on All Orders Over $75. | Windsor Mayra Formal Satin Slit Long Dress in Sage | Size: S | Satin Fabric

Windsor Sasha Formal High Slit Wrap Dress in Black
(171) 4.5847955 star rating

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

Marissa Formal Satin Cowl Neck Dress in Green
(169) 4.5680475 star rating

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

Windsor Rowena Sequin Mermaid Dress in Navy Blue
(168) 4.7261906 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 Cheyenne Formal One-Shoulder Velvet Dress in Black-2
(124) 4.782258 star rating

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

Addison Glitter Mesh Formal Dress in Black
(113) 4.628319 star rating

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

Bethanie Formal Sequin V-Neck Mermaid Dress in Yellow
(89) 4.573034 star rating

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

Windsor Alisha Rhinestone Strap Formal Dress in Black
(84) 4.6309524 star rating

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

Windsor Jamie Lace-Up Satin Formal Column Dress in Red
(70) 4.785714 star rating

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

Rose Formal Mesh Corset Column Dress in Green
(67) 4.447761 star rating

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 Green | Size: M | Knit Fabric/Mesh Fabric

One Shoulder Black Cocktail Dresses

When it comes to making an entrance that leaves everyone just a little bit obsessed, nothing does it quite like a one shoulder black cocktail dress. There’s something about that single, swooping strap and the way it frames your collarbone—suddenly, you’re the main character and everyone else is just background noise. Whether you’re heading to a rooftop party, a glam birthday dinner, or that invite-only soirée you scored through your most connected friend, a one shoulder silhouette always brings the drama in the best way. The beauty of black? It’s a total chameleon—edgy or elegant, sultry or sophisticated, you get to decide. And let’s talk about fit: one shoulder styles are magic for showing off a little skin without feeling overexposed, and they’re universally flattering. If you love a little extra detail, look for ruching, a side slit, or a touch of sparkle—these tiny upgrades can turn a simple dress into a full-on statement. For those who live for accessories, a one shoulder neckline is practically begging for a bold earring moment or a stack of bangles. And if you’re the type who likes to keep things low-key, just let the dress speak for itself with a sleek clutch and your favorite heels.

Gifting a one shoulder black cocktail dress? You’ll be remembered as the friend who knows how to pick a present that’s both iconic and wearable. This isn’t just a dress, it’s an instant confidence boost—perfect for birthdays, graduations, or as a “just because you’re amazing” surprise. If you’re shopping for yourself (because self-love is the best kind), think about where you’ll wear it most. Do you want something you can re-style for a girls’ night out and then wear again for a work event with a chic blazer? Or maybe you’re after that show-stopping look for a milestone celebration. Either way, versatility is key. Black is forgiving, timeless, and always photogenic—no need to stress about lighting or matching with your crew. Plus, the one shoulder cut is surprisingly comfy and keeps you cool when you’re tearing up the dance floor or mingling under the city lights. Pro tip: always check the fabric for a bit of stretch, especially if you’re planning on going hard at the dessert table (we don’t judge). And if you’re worried about slipping straps or wardrobe malfunctions, one shoulder designs usually stay put like a dream, so you can focus on living your best life.

If you’re ready to level up your party wardrobe, a one shoulder black cocktail dress is the move. These dresses are the kind of pieces you’ll reach for again and again, whether you’re RSVPing yes to a last-minute event or just want to feel unstoppable on a random Friday night. They work across all kinds of vibes—pair with strappy sandals for a rooftop hang, or go all-in with stilettos and a statement lip for a more formal affair. And if you’re looking for even more inspo, check out our collection of One Shoulder Black Party Dresses to find your next obsession. Trust us, you’re about to become the group chat’s resident style icon.

Top Picks For One Shoulder Black Cocktail Dresses