Long Wedding Guest Dresses
Elevate your wedding guest style with these gorgeous long dresses. Whether you prefer a flattering A-line, dramatic mermaid, or sleek sheath silhouette, these styles feature luxe fabrics like satin, rhinestones, velvet, and glitter knit. Perfect for semi-formal, formal, or black-tie weddings, with stunning details like side slits, low backs, and strappy or strapless necklines. Find your picture-perfect long dress or gown for your upcoming wedding celebration.
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Long Wedding Guest Dresses Made for a Grand Entrance
Long Wedding Guest Dresses bring the drama for fall and winter weddings with sweeping lengths, elegant shapes, and luxe details made for celebrating. From flowing A-line dresses to sleek column and curve-defining designs, Windsor’s collection gives you plenty of ways to go long for formal receptions, holiday weddings, and every dressed-up RSVP this season.
Long Silhouettes from Flowing to Fitted
The best long dresses for wedding guest style balance the impact of the length with a silhouette that feels like you. A-line dresses create graceful movement, while fitted and column shapes offer a sleeker profile. Mermaid Wedding Guest Dresses contour through the bodice and hips before flaring toward the hem for a more dramatic finish.
Modern details give these silhouettes even more personality. Corset bodices and lace-up backs can add structure or adjustability, while ruching and ruffles bring texture and dimension. Cowl, halter, off-the-shoulder, square, V-neck, and sweetheart necklines give you different ways to frame your look.
Floor-Length Wedding Guest Dresses Made to Move
Floor-Length Wedding Guest Dresses may bring the drama, but they should still let you enjoy the celebration. Front, side, or back slits give a long skirt more freedom of movement while creating a stylish reveal of your heels. They can also make the silhouette come alive as you walk, dance, and capture those must-post photos from the celebration.
For a little less length, explore mid-length wedding guest dresses when you want an elevated look that puts more focus on your shoes.
Why Choose a Long Dress for a Fall or Winter Wedding?
Long silhouettes are a natural choice for cooler-season weddings when you want more coverage without giving up a dressed-up look. Satin and lace can transition beautifully through fall, while velvet brings richer texture as winter arrives. Glitter, sequins, rhinestones, and beaded details dial up the festive mood for holiday and New Year’s Eve weddings.
For colder celebrations where you want more arm coverage, long sleeve formal dresses offer another season-ready option. If the invitation calls for an especially elevated dress code, explore formal wedding guest dresses for styles suited to black-tie celebrations.
What Is the Best Long Dress for a Wedding Guest?
Start with the dress code, then consider the venue and overall vibe of the wedding. A flowing A-line dress can complement an outdoor or rustic setting, while a sleek column or mermaid silhouette can match the polished mood of an elegant indoor or city celebration. For formal weddings, look to floor-length styles in luxe fabrics or with refined embellishments to meet the dressier moment.
From softly flowing shapes to fitted statement styles, Windsor’s Long Wedding Guest Dresses give you elegant options for fall, winter, holiday, and New Year’s Eve celebrations.
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Emberly Sequin One-Shoulder High Slit Formal Dress
Special Occasion
Dazzling with a sultry dramatic flair, the Emberly sequin formal dress will radiate glamour at your soiree! Crafted with stunning sequin embroidery in an all-over chic draped curved pattern, she features a sleeveless asymmetric one-shoulder neckline, an open back with a thin asymmetric strappy design accented with mini rhinestones, a floor-length hem with a high-cut side slit for an alluring touch, and a slim-fit silhouette. The sheer mesh fabric includes a full-length knit lining. Complete your gorgeous formal look in this long dress with a pair of strappy stilettos!
Fit & Features
- Sleeveless asymmetric one-shoulder neckline, dart seam details
- Open back, thin asymmetric strappy design, rhinestone embellishments
- Back zipper, hook and eye closure
- Floor-length hem, high-cut side slit, slim-fit silhouette
- Sequin embroidery, draped curved pattern
- Sheer mesh fabric, full-length knit lining, minimal stretch
- Strapless or sticky bra recommended
- Runs true to size
Style Number/Barcode: 05002-7953
Category Name: Long Wedding Guest Dresses
Price: $19.97 $79.90
On Sale: Yes
Availability: Out of Stock
Product Badge:- Sale
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Paige Formal Ruched Mermaid Dress
Special Occasion
Put your curves on display in the Paige formal dress destined to be your plus-one at weddings or fancy cocktail soirees! She features a sleeveless one-shoulder neckline, spaghetti strap, and side ruched seams that accentuate your femme figure along her flattering mermaid, floor-length silhouette. The formal dress is composed of a slinky knit fabric with a moderate stretch. Style with a collar necklace and heels to complete the look.
Fit & Features
- Sleeveless one-shoulder neckline, spaghetti strap
- Side ruched seams, mermaid silhouette
- Floor-length hem
- Slinky knit fabric
- Moderate stretch
- Strapless or sticky bra recommended
- Runs true to size
Style Number/Barcode: 05002-6896
Category Name: Long Wedding Guest Dresses
Price: $29.97 $59.90
On Sale: Yes
Availability: Out of Stock
Product Badge:- Ships Free
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Jessa Lace-Up Mermaid Sequin Formal Dress
Special Occasion
The Jessa sequin formal dress will charm hearts with her magnetic radiance at banquets or red-carpet events! Featuring a lace-up back that adds a touch of allure, while the intricate sequin pattern on a sheer mesh fabric exudes luxury and sophistication.
This dazzling dress was made for the spotlight! Love the shimmer? Discover more sequin prom dresses or find a sophisticated look in our wedding guest dresses.
Fit & Features
- Sequin pattern, mesh fabric lined with stretchy knit
- Adjustable spaghetti straps
- V-neckline, padded bra cups
- Lace-up, back zipper and hook-eye closure
- Mermaid silhouette, floor-length hem
- Runs true to size
Where to Wear:
Prom, galas, and black-tie events.
Style Number/Barcode: 05002-8167
Category Name: Long Wedding Guest Dresses
Price: $59.97 $139.90
On Sale: Yes
Availability: Out of Stock
Product Badge:- Ships Free
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Loni Formal Velvet One-Shoulder Mermaid Dress
Special Occasion
Your allure in the Loni formal velvet long dress will be impossible to ignore when you strut into a gala or holiday soiree! She features a one-shoulder neckline, adjustable spaghetti strap, a padded bust, a mermaid silhouette that flaunts your curves, and a revealing high front slit that leads to her floor-length hem. The floor-length gown is composed of a soft velvet fabric that exudes elegance and offers plenty of stretch. Complete the look with platform heels and a clutch.
Fit & Features
- Sleeveless one-shoulder neckline
- Adjustable spaghetti strap
- Padded bust, back zipper and hook-eye closure
- Mermaid silhouette, high front slit
- Floor-length hem
- Velvet fabric, moderate stretch
- Runs true to size
Style Number/Barcode: 05002-7680
Category Name: Long Wedding Guest Dresses
Price: $14.97 $69.90
On Sale: Yes
Availability: Out of Stock
Product Badge:- Sale
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Adeline Formal Sequin Strappy Mermaid Dress
Special Occasion
Light-reflecting iridescent sequins cover the Adeline formal dress to captive out on the dance floor at receptions or celebrations! She features a sleeveless V-neck with a sheer mesh insert, a lightly padded bust, bungee spaghetti straps that shape the strappy open-back design, and a mermaid silhouette with a flirty high slit along the floor-length hem. The formal dress is crafted from sequin-knit mesh fabric with a stretchy knit lining. Style with a gorgeous necklace and earring set.
Fit & Features
- Sleeveless V-neck, sheer mesh insert
- Bungee spaghetti straps, lightly padded bust
- Strappy open-back
- Mermaid silhouette, front high slit, floor-length hem
- Sequin-knit mesh fabric, stretchy knit lining
- Bra optional
- Runs true to size
Style Number/Barcode: 05002-6887
Category Name: Long Wedding Guest Dresses
Price: $9.97 $145.90
On Sale: Yes
Availability: Out of Stock
Product Badge:- Sale
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Elianna Mesh Off-The-Shoulder Mermaid Dress
Special Occasion
Created for the kind of night where your entrance sets the tone in seconds, the Elianna mesh off-the-shoulder mermaid dress frames the silhouette with a modern cutout and a sweep of sheer sleeves. It's the dress that captivates with undeniable allure.
Fit & Features
- Airy smooth knit-lined stretch fabric
- Off-the-shoulder neckline with a sleek front cutout
- Sheer mesh long sleeves
- Figure-accentuating mermaid silhouette with a thigh-high front slit
- Back zipper closure with hook-eye closure
- Runs true to size
Where to Wear:
Black-tie parties, formal weddings, red-carpet events, galas, and chic soirees, rehearsal dinners, engagement parties, destination resorts, honeymoons, upscale cocktail parties, birthday events, fashion-forward occasions
Style Number/Barcode: 05002-000715
Category Name: Long Wedding Guest Dresses
Price: $69.90
Availability: Out of Stock
Product Badge:- Ships Free
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Shakira Cowl Neck Lace Mermaid Formal Dress
Special Occasion
The Shakira formal dress is destined to make a grand entrance at your next event! She features a sleeveless cowl neckline with a display of delicate lace to add a romantic touch to her mermaid silhouette. The dress is composed of a smooth silk-like fabric that effortlessly hugs your curves into a floor-length mermaid silhouette. Complete your look with a rhinestone necklace and earrings.
Fit & Features
- Sleeveless, cowl neckline
- Lace insert with padded cups
- Spaghetti straps
- High waist
- Mermaid silhouette
- Smooth silk fabric
- Form hugging fit, minimal stretch, runs true to size
Style Number/Barcode: 05002-1393
Category Name: Long Wedding Guest Dresses
Price: $14.97 $64.90
On Sale: Yes
Availability: Out of Stock
Product Badge:- Ships Free
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Gwyneth Metallic Open Back Mermaid Dress
Special Occasion
Crafted to glow from every angle, the Gwyneth metallic mermaid dress sculpts with a ruched sweetheart neckline and dramatic floor-sweeping silhouette. A sleek back cutout with bar strap detail adds just the right edge, along with the high-shine finish—perfect for black-tie nights that call for all-out glamour.
Fit & Features
- Foiled metallic knit fabric with full-length knit lining, high stretch
- Sleeveless sweetheart neckline, ruched center, padded bust
- Thin tank shoulder straps
- Back bar strap with hook and bar closure
- Lower back cutout, ruching with hidden zipper closure
- Floor-length mermaid silhouette
- Runs true to size
Where to Wear:
Black-tie parties, galas, red-carpet events, fancy soirees, and formal affairs.
Style Number/Barcode: 05002-000466
Category Name: Long Wedding Guest Dresses
Price: $69.90
Availability: Out of Stock
Product Badge:- Sale
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Charlie Halter Keyhole Mermaid Satin Formal Dress
Special Occasion
The Charlie satin formal dress is as captivating as you! You'll look and feel your best with a unique keyhole halter neckline and curve-flattering mermaid silhouette.
With a smooth, luminous finish, this dress was made to shine. Keep the luxe look going with breathtaking satin prom dresses or go for a sophisticated statement with our wedding guest dresses.
Fit & Features
- Premium satin fabric
- Keyhole halter neckline
- Back zipper closure
- Mermaid silhouette
- Floor-length hem
- Runs true to size
Where to Wear:
Prom, weddings, rehearsal dinner, black tie soirees, cocktail parties, engagement parties
Style Number/Barcode: 05002-9708
Category Name: Long Wedding Guest Dresses
Price: $19.97 $79.90
On Sale: Yes
Availability: Out of Stock
Product Badge:- Ships Free
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Nicolette Lace-Up Mermaid Crepe Formal Dress
Special Occasion
Classy and sophisticated, the Nicolette crepe formal dress is destined to be a chic option for banquets or black-tie soirees! Crafted from stretch crepe fabric, this formal gown offers a polished look. Featuring a V-neckline that highlights your bust, padded bra cups for support, and adjustable spaghetti straps to get a perfect fit. The lace-up back adds a head-turning factor while the high front slit and mermaid silhouette accentuates your figure along the floor-length hem. Complete the look with a lariat necklace and heels.
Fit & Features
- Crepe fabric with stretch, partial knit lining
- Spaghetti straps
- Padded bra cups
- Lace-up, back zipper and hook-eye closure
- High front slit
- Mermaid silhouette
- Runs true to size
Style Number/Barcode: 05002-8380
Category Name: Long Wedding Guest Dresses
Price: $29.97 $54.90
On Sale: Yes
Availability: Out of Stock
Product Badge:- Ships Free
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Meara Formal A-Line Sequin Dress
Special Occasion
Bring the glitz with a formal dress that illuminates the night! Meara features a sleeveless square neckline, padded cups, bungee spaghetti straps, multiple bungee bar straps, a damask sequin pattern, and an A-line silhouette. The dress is composed of a lined mesh fabric that offers a form-hugging fit with minimal stretch. Complete look with rhinestone heels and a rhinestone clutch.
Fit & Features
- Sleeveless square neckline
- Padded cups, bungee spaghetti straps
- Bungee bar straps, damask sequin print
- High waist
- Lower back zipper closure
- Lined mesh fabric
- Form-hugging fit, minimal stretch
- Runs true to size
Style Number/Barcode: 05002-2349
Category Name: Long Wedding Guest Dresses
Price: $19.97 $119.90
On Sale: Yes
Availability: Out of Stock
Product Badge:- Clearance
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Sleek Ruffle Slit Halter Midi Dress
This sleek midi dress makes getting dressed feel instantly more polished. The halter curve-hugging silhouette pairs a plunging neckline with a ruffle-trimmed slit for a fluid, elongated look. Finish it with heels and delicate jewelry for dressy occasions or plans.
Fit & Features
- Sleek knit-lined stretchy fabric
- Halter V-neckline with tie-back straps
- Open-back design
- Ruffle-trimmed front slit
- Curve-hugging fit
- Midi-length hem
- Runs true to size
Style Number/Barcode: 05101-001518
Category Name: Long Wedding Guest Dresses
Price: $44.90
Availability: In Stock
Available Color: DENIM
Available Size: XS, S, M, L
Product Badge:- Best Seller
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Arely Floral Sequin Corset Formal Dress
Special Occasion
Designed for moments that deserve a little extra shimmer, the Arely floral print sequin gown sculpts the body in a sleek mermaid silhouette with a strapless sweetheart neckline. A corset bodice with boning and pleated satin cinch trim brings structure and softness together, creating a look that feels equal parts refined and captivating.
Fit & Features
- Floral print, all-over sequin embellished mesh fabric, knit lining
- Strapless sweetheart neckline, padded bra cups
- Non-slip grip lining, pleated satin cinch trim
- Back zipper and hook-eye closure
- Corset bodice with flexible boning, satin trim
- Drop-waist seam, mermaid floor-length silhouette
- Runs true to size
Where to Wear:
Prom, black tie weddings, galas, garden parties, fancy engagement parties, formal celebrations, big birthday events
Style Number/Barcode: 05002-001355
Category Name: Long Wedding Guest Dresses
Price: $19.97 $129.90
On Sale: Yes
Availability: Out of Stock
Product Badge:- Ships Free
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Alayna Velvet Off-The-Shoulder Mermaid Dress
Special Occasion
Luxe with a shimmery allure, the Alayna formal mermaid dress is designed with a glitzy glitter velvet fabric perfect for your next black-tie affair. It features an off-the-shoulder neckline with a V-cut center accent, short sleeve cuffs, ruching at the waist to accentuate your curves, and a floor-sweeping mermaid silhouette with a high-cut side slit to showcase some leg.
Fit & Features
- Glitter velvet fabric, stretchy knit lining
- Off-the-shoulder neckline with V-wired center, short sleeve cuffs
- Padded bra cups
- Back zipper and hook-eye closure
- High waist seam
- High side slit
- Floor-length mermaid silhouette
- Runs true to size
Style Number/Barcode: 05002-8622
Category Name: Long Wedding Guest Dresses
Price: $19.97 $79.90
On Sale: Yes
Availability: Out of Stock
Product Badge:- Sale
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Mara Formal High Slit Mermaid Dress
Special Occasion
Simply chic with stunning details, the Mara formal high-slit mermaid dress is perfect for a stylish wedding guest look! She features a sleeveless padded cowl neckline, adjustable spaghetti straps for a customized fit, ruching at the waist, dual vertical seams that run down the dress for a figure-flattering look, a floor-length hem with a thigh-high front slit for a sultry flair, and a mermaid silhouette. Accessorize this formal long dress with a sparkly luxe gemstone necklace and earrings set.
Fit & Features
- Sleeveless padded cowl neckline
- Adjustable spaghetti straps, back zipper hook-eye closure
- Ruching, dual vertical seams
- Floor-length hem, thigh-high front slit, mermaid silhouette
- Smooth knit fabric, stretchy knit lining
- Bra optional
- Runs true to size
Style Number/Barcode: 05002-7777
Category Name: Long Wedding Guest Dresses
Price: $59.90
Availability: Out of Stock
Product Badge:- Ships Free
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Diane Sequin Drape Back Formal Dress
Our Diane sequin drape back formal dress knows how to make you shine! She features tank-like shoulder straps that lead to a dramatic drape back detail, a wrap-front with a deep V neckline, a high waist, and a curve-hugging silhouette with a floor-length skirt. The dress is composed of a sheer knit fabric with all-over sequin embroidering, and includes a stretchy knit lining. Complete your look with a rhinestone collar necklace and dainty earrings.
Fit & Features
- Tank-like shoulder straps
- Drape back with layered detailing
- Wrap-front with a deep V neckline
- Side zipper and hook and eye closure
- Flattering curve-hugging fit
- Sheer knit fabric with a knit lining, moderate stretch
- All-over sequin embroidering
- Runs true to size
Style Number/Barcode: 05002-0621
Category Name: Long Wedding Guest Dresses
Price: $9.97 $89.90
On Sale: Yes
Availability: Out of Stock
Product Badge:- Ships Free
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Deanna Formal Sleeveless Mermaid Dress
Special OccasionBring the glamour in our unforgettable Deanna dress! She features a red hue, a sleeveless straight neckline, padded cups, a built in no slip strip, princess seams and a floor length mermaid silhouette accented with a high side slit. Her back features a lattice accent with small metal d-rings. Dress is composed of a lined crepe fabric that offers a form hugging fit with a moderate stretch.
Model is 5'9" with a 32" bust, 24" waist and 34" hips. She is wearing a size small.Special Occasion products cannot be returned to any retail locations.
Style Number/Barcode: 05002-6676
Category Name: Long Wedding Guest Dresses
Price: $29.97 $54.90
On Sale: Yes
Availability: Out of Stock
Product Badge:- Clearance
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Britt Sleeveless Mermaid Rhinestone Formal Dress
Special Occasion
You'll be an utterly dazzling sight in the Britt rhinestone formal dress at weddings, banquets, or galas! She features a square neckline, adjustable spaghetti straps, padded bra cups, and a stunning mermaid silhouette, this dress is designed for an elegant and sophisticated look. The rhinestone mesh fabric adds a touch of glamour, while the front slit and floor-length hem provide an alluring finish. Complete the look with a clutch.
Fit & Features
- Rhinestone embellished
- Mesh fabric line with stretchy knit
- Adjustable spaghetti straps
- Square neckline, padded bra cups
- Back zipper and hook-eye closure
- Front slit, mermaid silhouette
- Runs true to size
Style Number/Barcode: 05002-8503
Category Name: Long Wedding Guest Dresses
Price: $19.97 $79.90
On Sale: Yes
Availability: Out of Stock
Product Badge:- Sale
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Gwenyth Iridescent Lace Up Dress
Special OccasionAren't you a rare sight? This magical lavender Gwenyth lace up dress is a true fantasy! She features a deep V neckline, a plunging back with lace up straps, an exposed back zipper closure, and all over iridescent purple sequins. A body-hugging silhouette is complemented with her floor length trumpet skirt that flares at the hem. Gwenyth includes a short knit lining and has minimal stretch.
Special Occasion products cannot be returned to any retail locations.
Style Number/Barcode: 05002-6247
Category Name: Long Wedding Guest Dresses
Price: $33.97 $74.90
On Sale: Yes
Availability: Out of Stock
Product Badge:- 50% Off
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Kaylani Formal Satin Cowl Neck Long Dress
Special Occasion
Crafted from silky satin, the Kaylani formal dress is all about bringing romance to weddings or red-carpet events! She stuns in a sleeveless cowl neckline, tank straps, and a flattering A-line silhouette with a sultry high-cut front slit along her floor-length hem. The formal dress is composed of non-stretch satin fabric with a subtle sheen effect. Style with rhinestone hoop earrings and a clutch to complete the dressy look!
Fit & Features
- Sleeveless cowl neckline, tank straps
- Back zipper closure
- A-line silhouette
- High-cut front slit, foor-length hem
- Non-stretch satin fabric, subtle sheen
- Bra friendly design
- Runs true to size
Style Number/Barcode: 05002-7205
Category Name: Long Wedding Guest Dresses
Price: $19.97 $64.90
On Sale: Yes
Availability: Out of Stock
Product Badge:- Sale
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Amy Formal Strapless Mermaid Dress
Special Occasion
Elegantly chic, the Amy formal strapless mermaid dress will be sure to turn heads. She features a straight-across neckline with pleating at the bust and flexible boning, a high waist seam, vertical seams that start at the bust and continue down the dress, a hip-hugging fit, and a floor-sweeping bonded hem with a figure-flattering mermaid silhouette. The formal dress is composed of a sleek scuba-kit fabric with lining and minimal stretch. Complete the look with a dazzling rhinestone jewelry set and a sleek clutch.
Fit & Features
- Strapless straight-across neckline, flexible boning
- Pleating at the bust, back zipper and hook-eye closure
- High waist seam, vertical seams down the dress
- Form-hugging fit at the hips
- Floor-sweeping bonded hem, mermaid silhouette
- Sleek scuba knit fabric, lining, minimal stretch
- Strapless or sticky bra recommended
- Runs true to size
Style Number/Barcode: 05002-7067
Category Name: Long Wedding Guest Dresses
Price: $19.97 $84.90
On Sale: Yes
Availability: Out of Stock
Product Badge:- Sale
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Mollie Formal Satin Side Slit Long Dress
Special Occasion
Crafted of silky satin, the romantic Mollie formal dress is perfect for making a memorable entrance as a bridesmaid or a black tie gala! She features a sleeveless square neck, spaghetti straps, and a side pleated seam that shapes the form-hugging slim silhouette with a sultry high-cut side slit and long hem. The formal dress is composed of lined satin fabric with minimal stretch. Complete the look with a glam bracelet and platform heels.
Fit & Features
- Sleeveless square neck, spaghetti straps
- Side pleated seam
- Form-hugging, slim silhouette
- High-cut side slit, long-length hem
- Lined silky satin, minimal stretch
- Strapless or sticky bra recommended
- Runs true to size
Style Number/Barcode: 05002-6854
Category Name: Long Wedding Guest Dresses
Price: $29.97 $59.90
On Sale: Yes
Availability: Out of Stock
Product Badge:- Sale
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Yamileth Formal Lace Up Velvet Dress
Special Occasion
Lace up in a luxe formal dress that stuns from the moment you enter the room! Yamileth features a sleeveless V-neckline with padded cups, spaghetti straps, lace-up straps that cross at the back, and a curve-hugging an A-line silhouette. The dress is composed of a lined velvet fabric that offers a moderate stretch. Complete look with rhinestone heels and a rhinestone tennis bracelet.
Fit & Features
- Sleeveless V-neckline, padded cups
- Spaghetti straps
- Lace-up straps, cross at back
- A-line silhouette
- Lined velvet fabric
- Form hugging fit, moderate stretch
- Runs true to size
Style Number/Barcode: 05002-1429
Category Name: Long Wedding Guest Dresses
Price: $14.97 $69.90
On Sale: Yes
Availability: Out of Stock
Product Badge:- Sale
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Primrose Velvet Pattern Lace-Up Formal Dress
Special Occasion
Designed for evenings that linger long after the last toast, this mesh mermaid gown brings depth and allure through a velvet burnout pattern that moves beautifully under soft lighting. A draped cowl neck and strappy lace-up open back elevate the silhouette with a refined yet striking finish.
Fit & Features
- Velvet burnout pattern, mesh-lined fabric
- Spaghetti straps with draped cowl neckline
- Fitted bodice with geometric burnout velvet pattern
- Open back with lace-up detail
- High waist seam for a streamlined silhouette
- Floor-length mermaid skirt with subtle flare
- Runs true to size
Where to Wear:
Weddings, black tie galas, upscale ballroom or museum events, formal receptions, elegant soirees, winter celebrations, dressy dinners
Style Number/Barcode: 05002-000816
Category Name: Long Wedding Guest Dresses
Price: $79.90
Availability: Out of Stock
Product Badge:- Ships Free