Square Neck Wedding Guest Dress
Square neck wedding guest dresses are having a major moment, and honestly, it’s easy to see why. The neckline is equal parts modern and timeless, giving you that sweet spot between classic elegance and trend-forward flair. Whether you're RSVPing for a garden ceremony or a chic city soirée, a square neck wedding guest dress brings just the right amount of polish to your look—no overthinking required. Effortlessly flattering and endlessly versatile, these styles are ready to help you celebrate in confidence (and snag a few compliments along the way).
$89.90
A brown knit mermaid dress featuring a square halter neckline and a striking lace-up back.
$49.90
A black crepe formal dress with a sleeveless square neckline and a high-cut front slit.
$109.90
A navy blue sequin mermaid dress with a lace-up back and thigh-high front slit.
$38.90
A mint knit mini dress featuring a pleated bust, spaghetti straps, and a flattering A-line silhouette.
$59.90
A red glitter knit mini dress featuring a square neckline, open back, and dramatic cascading bow.
$36.90
A blue knit midi dress featuring a sleeveless square neckline, ruching, and a pleated mermaid silhouette.
$59.90
A sleek green satin slim-fit dress featuring a square neckline, corset bodice, and floor-length wrap skirt.
$79.90
A glamorous red glitter mermaid dress with an open back and high front slit for formal occasions.
$54.90
A light blue chiffon maxi dress featuring a tiered, ruffled silhouette and adjustable strappy tie-back.
$99.90
A romantic black lace mini dress featuring a square neckline, tie-front bust, and lace-up back.
$69.90
A wine-colored mermaid gown featuring a square neckline, lace-up back, and smooth, stretchy knit fabric.
$69.90
A light blue mesh mermaid gown featuring lace trim, a lace-up back, and a sweeping silhouette.
$44.90
A black crepe midi dress featuring a square neckline, tank straps, and an open tie-back cutout.
$79.90
A sleek green mermaid dress with a high slit, adjustable straps, and a square neckline.
$149.90
An ivory beaded column gown featuring an allover floral design, high side slit, and cutout back.
$149.90
A black sequin-embellished knit gown featuring a mermaid silhouette, square neckline, and strappy open back.
$39.90
A structured white mini dress featuring a square neckline, adjustable bow straps, and smooth stretch scuba fabric.
$149.90
A pink printed column gown featuring intricate beading, spaghetti straps, and a dramatic high side slit.
$79.90
A black glitter knit mermaid gown featuring a square neckline, princess seams, and a lace-up cutout back.
$64.90
A red floral lace mermaid dress featuring a sleeveless cowl neckline and striking open-back design.
$24.97 $59.90 58% off
A captivating royal blue bodycon dress featuring a glitter knit, lace-up back, and high front slit.
$39.90
A white floral maxi dress featuring a strappy back, mesh fabric, and curve-hugging silhouette.
$99.90
A navy blue floral mesh A-line gown featuring a ruffled silhouette, lace-up back, and high slit.
$69.90
An ivory floral mesh formal dress featuring a halter neckline, ruched bodice, and ruffled side slit.
Now Trending
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: M | Rhinestone
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
$19.97 $59.90
67% off
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 | Size: S | Rhinestone/Velvet 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:Formal dances, black-tie events, formal weddings, and upscale parties. Free Shipping on All Orders Over $75. | Windsor Bethanie Formal Sequin V-Neck Mermaid Dress in Light Blue | Size: S | Knit Fabric/Mesh Fabric/Mesh Fabric
Designed to be eyed up and down, the Shayla long formal dress brings the sultry heat to any black-tie occasion! A curved neckline and sheer mesh lace corset bodice create a sophisticated silhouette, while the lace-up back provides a personalized fit. Fit & FeaturesSheer mesh, smooth knit fabric, Lace corset bodice, flexible boning, padded bra cups, Lace-up, back zipper with hook-eye closure, Floor-length fitted silhouette, high front wrap slit, Runs true to size, Where to Wear:Formal dances, black-tie galas, red-carpet occasions, and big birthday events, weddings, bridal showers, engagement parties, rehearsal dinners. Free Shipping on All Orders Over $75. | Windsor Shayla Strapless Corset Lace Formal Dress in Red | Size: S | Knit Fabric/Sheer Mesh Fabric
Look your best for a fancy night in the stunning Amirah formal glitter dress! Fashioned with an eye-catching cross back, this dress will make you feel like the star of the evening with a high slit and floor-length column silhouette. Fit & FeaturesGlitter knit fabric, moderate stretch, Sleeveless cowl neckline, Spaghetti straps, cross back, Side pleated seam, slim silhouette, high front slit, Floor-length column silhouette, Runs true to size, Extra glitter for maximum sparkle - may have some natural fallout, Where to Wear:Prom, black-tie weddings, galas, and upscale birthday events. Free Shipping on All Orders Over $75. | Windsor Amirah Formal Glitter Cowl Neck Column Dress in Green | Size: XS | Knit 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: S | Knit Fabric/Satin Fabric
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 Brown | Size: XS | Knit Fabric/Mesh Fabric
You'll be a breathtaking view in the Melinda formal satin dress boasting a stunning open lace-up back and high-cut front slit to show some leg! Fit & FeaturesLined silky satin fabric, minimal stretch, Sleeveless cowl neckline, spaghetti straps, padded bust, Lace-up open back, zipper closure, Fitted silhouette, high-cut front slit, Floor-length hem, Runs true to size, Where to Wear:Prom, black-tie weddings, bridesmaids, galas, formal celebrations, and red-carpet events. Free Shipping on All Orders Over $75. | Windsor Melinda Satin Lace-Up Formal Dress in Yellow | Size: XS | Satin Fabric
Stunning for brides and celebrations, the Savannah formal crepe dress showcases simplicity and chicness! With a form-hugging silhouette and sultry high front slit, this formal dress is perfect for an evening of elegance. Fit & FeaturesLined crepe fabric, moderate stretch, Sleeveless square neckline, tank-style straps, Back zipper and hook-eye closure, Form-hugging silhouette, Front high-cut slit, Floor-length hem, Runs true to size, Where to Wear:Prom, weddings, bridesmaids, red-carpet events, milestone celebrations Free Shipping on All Orders Over $75. | Windsor Savannah Formal Crepe Long Dress in Black | Size: XS