Square Neckline Cocktail Dresses
Square neckline cocktail dresses are the ultimate power move for any night out. That bold, straight-across neckline? It’s giving main character energy, and you’re about to steal every spotlight. Whether you’re planning a girls’ night that turns into an adventure or RSVPing “yes” to the party of the year, these dresses bring the perfect mix of flirty and fierce. Slip into a square neckline cocktail dress and get ready to serve confidence with a side of sass—because tonight, you’re rewriting the dress code.
$59.90
A white satin formal dress featuring a form-hugging silhouette, high front slit, and sleek spaghetti straps.
$109.90
A chic navy blue mermaid dress with sequins, featuring a lace-up back and thigh-high slit.
$49.90
A black crepe formal dress featuring a sleeveless square neckline and a high-cut front slit.
$59.90
A stunning sage bodycon mini dress with sequin embroidery, halter straps, and an open lace-up back.
$44.90
A sophisticated white midi dress featuring sheer chiffon sleeves and a sultry ruched bodycon silhouette.
$46 $64.90 29% off
A black crepe formal dress with puff sleeves, lace-up back, and high-cut slit for prom.
$54.90
An ivory satin midi dress with a corset seam bodice and pleated faux wrap hem.
$39.90
An on-trend burgundy satin mini dress with sheer puff sleeves and a flattering bodycon silhouette.
$76.90
A sleek black mini dress with a strapless neckline, glitter fabric, and a dramatic bow train.
$19.97 $54.90 64% off
A burgundy formal dress with sheer mesh, bell sleeves, and a high-side slit for elegant occasions.
$38.90
An ivory mini dress with a pleated bust, spaghetti straps, and an A-line silhouette.
$49.90
A pink sleeveless bodycon mini dress with shimmering sequin embroidery and a stylish cutout back.
$109.90
A teal bodycon dress with a sequin scroll pattern, high slit, and adjustable spaghetti straps.
$46.90
A lavender mini dress with floral sequin embellishments, tulle straps, and a lace-up back.
$46 $64.90 29% off
A black taffeta skater dress featuring a low back bow and elegant square neckline.
$46.90
A sleek black bodycon midi dress with a square neckline and stretchy double-lined knit fabric.
$37.90
A navy blue glitter crepe mini dress with a sleeveless square neckline and bodycon silhouette.
$59.90
A sage satin slim-fit formal dress featuring a corset bodice, faux wrap-front, and floor-length hem.
$59.90
A sultry light blue mesh formal dress with a square neckline, high slit, and slim silhouette.
$49.90
A sleek green satin midi dress with a corset bodice and high front wrap slit.
$19.97 $42.90 53% off
A natural floral print bodycon midi dress with a lace-up back and flirty side slit.
$54.90
A black satin mini dress featuring a ruffled side trim, lace-up back, and wrap-front skirt.
$9.97 $39.90 75% off
A black bodycon mini dress with an asymmetrical hem, cutout bust, and sheer mesh sleeves.
$54.90
A mauve satin midi dress featuring a bodycon silhouette, square neckline, and chic wrap hem.
$79.90
A dazzling red sequin satin dress with a lace-up back, adjustable straps, and flattering A-line silhouette.
$99.90
A yellow mermaid sequin dress with a cutout back, high slit, and adjustable spaghetti straps.
$9.97 $59.90 83% off
A black glitter midi dress with sheer sleeves, bodycon fit, and a ruched slit detail.
$49.90
A black crepe mermaid gown with a square neckline, corset bodice, and high front slit.
$32.90
A slinky black knit mini dress with a square neckline and flirty A-line silhouette.
$59.90
A pink floral organza skater dress featuring a lace-up corset bodice and voluminous tulle-lined silhouette.
$79.90
A black satin mermaid dress featuring an open strappy back and elegant floor-length hem.
$9.97 $49.90 80% off
An elegant black mesh midi dress with ruched sides, sheer sleeves, and a tiered ruffled hem.
$29.97 $89.90 67% off
A light blue sequin formal dress featuring a lace-up back, high slit, and mermaid silhouette.
$69.90
A chic black satin A-line dress featuring a statement back bow and adjustable spaghetti straps.
$42.90
A wine-colored mini dress featuring a sheen knit fabric, halter square neckline, and bodycon silhouette.
$54.90
An ivory satin skater dress with a halter neckline, drop waist, and bubble hem for semi-formal events.
$42.90
A green satin-knit midi dress with asymmetric pleating and a back slit for elegant movement.
$52.90
A sage midi dress with floral sequins, lace-up back, and bodycon fit for glamorous occasions.
$54.90
A black velvet pattern bodycon midi dress with a flirty bust cutout and ruffled hem.
$44.90
A navy blue floral knit midi dress featuring a pleated waist, wrap-front slit, and bodycon silhouette.
$79.90
A sleek green mermaid dress with a high slit, adjustable straps, and a square neckline.
$9.97 $36.90 73% off
A green velvet mini dress with glitter, featuring a pleated bust and spaghetti straps.
$39.90
A vibrant multi-color mini dress in tropical floral print, crafted from stretchy scuba knit fabric.
$39.90
A teal glitter knit mini dress with a lace-up open back and asymmetrical hem for dazzling nights.
$59.90
A black glitter knit midi dress featuring a bodycon fit, low back, and statement bow detail.
$129.90
A vibrant yellow skater dress featuring beaded mesh fabric, a lace-up back, and a flirty mini hem.
$79.90
A playful yellow A-line dress featuring side pleats, square neckline, and comfortable scuba woven fabric.
$59.90
A black crepe mermaid dress with a square halter neckline and elegant high front slit.
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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
Shine bright and sparkle up the night in the gorgeous Leila mini dress. The dress boasts an alluring open back with a lace-up strappy design for a customized fit, and a short, curve-hugging silhouette. Shop Long Version: Kailani Formal Sequin Slit Mermaid DressFit & FeaturesSheer mesh fabric, full knit lining, moderate stretch, Sequin embroidery, scroll pattern, Sleeveless square neckline, adjustable spaghetti straps, Open back, lace-up strappy design, tie closure, High waist seam, lower back zipper, hook and eye closure, Mini-length hem, fitted bodycon silhouette, Runs true to size, Where to Wear:Prom, bachelorettes, birthdays, Vegas weekends, date nights Free Shipping on All Orders Over $75. | Windsor Leila Sequin Bodycon Mini Dress in Royal Blue | Size: XL | Knit Fabric/Mesh Fabric/Sheer Mesh Fabric
Look and feel like a sultry senorita in this mesh mini dress perfect for an chic night on the town! It features a sleeveless cowl neckline, dual adjustable spaghetti straps with a tie-neck closure, and side and back ruched seams designed to flaunt your curves along the bodycon silhouette. Complete the look with hoop earrings. Fit & FeaturesSleeveless cowl neckline, Dual adjustable spaghetti straps, tie-neck closure, Side and back ruched seams, Back zipper and hook-eye closure, Bodycon silhouette, mini-length hem, Mesh fabric, brushed soft knit stretchy lining, Runs true to size, Free Shipping on All Orders Over $75. | Windsor Senorita Mesh Strappy Mini Dress in Red | Size: M | Knit Fabric/Mesh Fabric/Mesh Fabric
Every occasion is worth celebrating in this off-the-shoulder midi dress! The smooth and stretchy knit fabric includes a full-length knit lining for additional coverage. The off-the-shoulder neckline and short-sleeve cuffs add a touch of elegance, while the bodycon silhouette and flared midi-length hem accentuate your curves in all the right places. Complete the look with teardrop earrings and heels. Fit & FeaturesSmooth stretchy knit fabric with knit lining, Off-the-shoulder neckline, Short-sleeve cuffs, Bodycon fit, Flare hem, Style runs small, Free Shipping on All Orders Over $75. | Windsor Exceptional Off-The-Shoulder Flared Midi Dress in Natural | Size: XS | Knit Fabric
Bring on the cute attitude in this ponte mini skort brings featuring a flattering high-rise waist, and a skirt overlay designed with dual front slits along the form-hugging fit. Fit & FeaturesSmooth ponte knit fabric, minimal stretch, High-rise waist, Skirt overlay, dual front slits, Form-hugging silhouette, Mini-length hem, Shorts lining, Runs true to size, Free Shipping on All Orders Over $75. | Windsor Cute Attitude Ponte Slit Mini Skort in Black | Size: L | Knit Fabric
Show up and stun this formal season in the gorgeous Brynlee bodycon mini dress! She features a sleeveless square neckline, a built-in padded bust, halter spaghetti straps, an open back with a lace-up design for a customized fit, and a short, curve-hugging silhouette. The lined mesh fabric features all-over sequin embroidery in an intricate scroll pattern. Style the formal mini dress with clear heels for a night to remember. Fit & FeaturesSleeveless, square neckline, Built-in padded bust, no bra required, Halter spaghetti straps, back button closure, Open back, lace-up design, zipper closure, Bodycon silhouette, mini-length hem, Sequin scroll embroidery, mesh fabric, knit lining, minimal stretch, Runs true to size, Free Shipping on All Orders Over $75. | Windsor Brynlee Sequin Embroidered Bodycon Dress in Sage | Size: S | Knit Fabric/Mesh Fabric/Mesh Fabric
A mini dress that brings the luxe sensation! The Keira faux pearl short dress is a stunning style with a strappy tie-back design and a bodycon silhouette that highlights your figure. Fit & FeaturesLightweight mesh fabric, stretchy knit lining, Faux pearl and bead embellishments, Sleeveless cowl neckline, Spaghetti straps, strappy tie-back design, open-back, Bodycon silhouette, mini-length hem, Runs true to size, Where to Wear:Prom, birthday parties, bachelorettes, Vegas weekends, rooftop cocktails Free Shipping on All Orders Over $75. | Windsor Keira Faux Pearl Strappy Open-Back Mini Dress in Light Blue-2 | Size: XS | Knit Fabric/Mesh Fabric/Mesh Fabric
A fashionista like you will adore this basic mini skirt for creating your day and night looks! Featuring an elasticized high-rise waistband, bodycon silhouette, and a flirty front hem slit on stretchy and smooth knit fabric. Style with a corset top and heels. Fit & FeaturesHigh-rise elasticized waistband, Bodycon silhouette, Front hem slit, Mini-length hem, Stretchy and smooth knit fabric, Runs true to size, Free Shipping on All Orders Over $75. | Windsor Get Down With Basic Slit Mini Skirt in Black | Size: XL | Knit Fabric
Everyone will see you shining at the club in this glitter mini dress! It features an off-the-shoulder sweetheart neckline, sheer fitted ruched long sleeves, adjustable spaghetti straps, a ruched seam along the padded bust, a sheer bodice with trim, and side ruched seams that hug your curves on the bodycon silhouette. Complete the look with a clutch and heels. Fit & FeaturesOff-the-shoulder sweetheart neckline, Adjustable spaghetti straps, Sheer fitted ruched long sleeves, Ruched and padded bust, sheer bodice, trim, Side ruched seams, bodycon silhouette, mini-length hem, Glitter mesh fabric, sewn-in knit lining, moderate stretch, Runs true to size, Free Shipping on All Orders Over $75. | Windsor See Me Shining Glitter Off-The-Shoulder Mini Dress in Wine | Size: M | Knit Fabric/Mesh Fabric/Mesh Fabric
Both sexy and demure, the Kristen party dress wows from every angle! Perfect for bachelorette weekends, themed soirees, and formal birthdays! She features a sleeveless sweetheart neckline with a padded bust, cowl draping, adjustable spaghetti straps, and side ruched seams that hug your curves along her short bodycon silhouette. The formal party dress is composed of a faux pearl embellished mesh fabric with a stretchy knit lining. Complete the look in statement block heels. Fit & FeaturesSleeveless sweetheart neckline, Padded bust, cowl draping, Adjustable spaghetti straps, Side ruched seams, bodycon silhouette, Mini-length hem, Faux pearl embellishments, mesh fabric, stretch knit lining, Runs true to size, Free Shipping on All Orders Over $75. | Windsor Kristen Faux Pearl Mini Party Dress in White | Size: XS | Knit Fabric/Mesh Fabric/Mesh Fabric
Square Neckline Cocktail Dresses
Square neckline cocktail dresses are the ultimate confidence-boosting power move for any girl who loves a little drama with her glam. There’s just something about that sharp, defined neckline—equal parts classic and daring—that instantly turns up the volume on every outfit. Whether you’re getting ready for a rooftop soirée, a bestie’s birthday bash, or a spontaneous night out that’s destined to become legendary, a square neckline gives you that sculpted, statuesque vibe that says, “I came to slay.” It’s the kind of silhouette that flatters every curve, frames your collarbones like a work of art, and lets you pile on your favorite layered necklaces or keep things sleek and simple—total main character energy, no matter how you style it. If you’re shopping for yourself (because, duh, you deserve it) or looking for a gift that’ll have your BFF texting you heart emojis for days, a square neckline dress is a no-brainer. It’s universally flattering and endlessly versatile, working its magic from fancy dinners to dance floors to those “just because” moments when you want to feel unstoppable.
When you’re picking out your next square neckline cocktail dress, think about how you want to shine. Do you love a bold, saturated color that makes your skin glow in every selfie, or are you more about those moody, mysterious hues that look fire under twinkling lights? Maybe you’re a fan of luxe fabrics—think velvet that feels like a hug, or shimmery satin that catches every eye in the room. And let’s not forget the details: a little ruching to hug your waist, a thigh-high slit for extra sass, or sleek, minimalist lines that give you that “effortlessly put together” look (even if you got ready in five minutes because you were too busy hyping up your crew). Square necklines also play so well with different sleeve lengths and dress lengths, so you can go for a flirty mini, a chic midi, or a dramatic full-length moment depending on your mood and the vibe of your event. If you’re gifting, this style is a total crowd-pleaser—perfect for the friend who’s always RSVP-ing “yes” or the sister who loves a little extra sparkle in her wardrobe. And if you’re the one unwrapping, you already know you’re about to be the best-dressed in any room.
Let’s be real: every Windsor girl knows that the right neckline can change everything. If you’re obsessed with how a square neckline makes you feel but want to explore more options, you’ll fall for the soft romance of Sweetheart Neckline Cocktail Dresses too—think all the flirty, feminine vibes with a little extra heart. No matter which neckline you choose, you’re guaranteed a dress that’s as fearless and unforgettable as you are. So go ahead, pick your favorite, style it with your boldest heels, and step out ready to own the night. Because when you look this good, there’s no such thing as blending in.