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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Hollie Strapless Mermaid Dress
Special OccasionFun and sexy! Our Hollie dress is the perfect way to get your next formal event outing! She features a strapless neckline with a sweetheart bust and a mermaid silhouette with a high-low hem. Includes a back zipper. She is composed of a lined crepe fabric that offers a form hugging fit with a moderate stretch.
Model is 5'7 with a 32" bust, 25" waist and 36" hips. She is wearing a size small.Special Occasion products cannot be returned to any retail locations.
Style Number/Barcode: 05002-4508
Category Name: Long Wedding Guest Dresses
Price: $20.97 $54.90
On Sale: Yes
Availability: Out of Stock
Product Badge:- Clearance
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Avery Sweetheart Mermaid Satin Formal Dress
Special Occasion
All out glamour has arrived, and she's the Avery satin formal dress. This mermaid dress brings all the allure with a curve-loving silhouette, a sweetheart neckline, and a high slit that guarantees jaws drop!
Fit & Features
- Stretch satin fabric, bust knit lining
- Sweetheart neckline, padded bra cups
- Adjustable spaghetti straps
- High front slit
- Mermaid silhouette, floor-length hem
- Runs true to size
Where to Wear:
Weddings, black tie galas, formal celebrations, dinner parties, date nights
Style Number/Barcode: 05002-000059
Category Name: Long Wedding Guest Dresses
Price: $59.90
Availability: Out of Stock
Product Badge:- Ships Free
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Rebekah Formal Sequin Fringe Mermaid Dress
Special Occasion
There's something about the way you'll look in the Rebekah formal sequin dress for your fearless-inspired era! Perfect for school dances, weddings, and galas. She features a striking sleeveless V-neckline, adjustable spaghetti straps, a padded bust, and a figure-flattering mermaid silhouette with a floor-length hem. The formal dress is composed of a glitzy sequin fringe embellished mesh fabric with a stretchy knit lining. Complete the look in rhinestone earrings and heels for extra sparkle!
Fit & Features
- Sleeveless V-neckline
- Adjustable spaghetti straps
- Padded bust
- Mermaid silhouette, floor-length hem
- Sequin fringe embellishments
- Mesh fabric, stretchy knit lining
- Runs true to size
Style Number/Barcode: 05002-7079
Category Name: Long Wedding Guest Dresses
Price: $9.97 $109.90
On Sale: Yes
Availability: Out of Stock
Product Badge:- Sale
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Tara Formal Satin Lace-Up Mermaid Dress
Special Occasion
An entrance you do not rush—this satin mermaid gown is designed for that slow, head-turning walk into the room. With a softly draped cowl neckline and an intricate lace-up back, it skims the body before flaring into a sculpted silhouette that feels equal parts polished and unforgettable.
Fit & Features
- Smooth knit fabric with subtle sheen, lined
- Sleeveless draped cowl neckline with sleek straps
- Open lace-up back
- Mermaid silhouette
- Floor-length with flared hem
- Runs true to size
Where to Wear:
Prom, weddings, black tie galas, red carpet occasions, rehearsal dinners, engagement parties, anniversaries, birthday events, formal soirees
Style Number/Barcode: 05002-001700
Category Name: Long Wedding Guest Dresses
Price: $74.90
Availability: Out of Stock
Product Badge:- Ships Free
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Melissa Sleeveless Ruffle Slim Satin Formal Dress
Special Occasion
Impress everyone with your impeccable taste in the Melissa satin formal dress perfect for wedding guests, bridesmaids, or attending a fancy soiree! Crafted from luxurious satin, this slim fit dress features a square neckline and delicate spaghetti straps. The ruffled high-side slit adds a touch of drama, while the long-length hem exudes elegance. Complete the look in dressy block heels and a clutch for a glamorous night.
Fit & Features
- Satin knit fabric, bust lining, minimal stretch
- Spaghetti straps
- Square neckline
- Ruffled high side slit
- Slim silhouette
- Runs true to size
Style Number/Barcode: 05002-8537
Category Name: Long Wedding Guest Dresses
Price: $29.97 $64.90
On Sale: Yes
Availability: Out of Stock
Product Badge:- Ships Free
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Penelope Off-The-Shoulder Sequin Mermaid Dress
Special Occasion
Bring the regal vibes to your formal night-out look in the gorgeous Penelope mermaid dress! She features a flattering off-the-shoulder sweetheart neckline with short fitted sleeves, a structured and padded bust, a high waist seam, and a floor-length mermaid silhouette with a chic high side slit. The lined mesh fabric features sequin embroidery in a stunning criss-cross and scroll pattern. Complete the look with chandelier earrings.
Fit & Features
- Off-the-shoulder sweetheart neckline, short fitted sleeves
- Padded bust, structured underwire design
- High waist seam, back zipper, hook and eye closure
- Floor-length mermaid silhouette, high side slit
- Sheer mesh fabric, full knit lining, moderate stretch
- Sequin embroidery, criss-cross and scroll pattern
- Runs true to size
Style Number/Barcode: 05002-2442
Category Name: Long Wedding Guest Dresses
Price: $14.97 $109.90
On Sale: Yes
Availability: Out of Stock
Product Badge:- Ships Free
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Kayla Long Sleeve Lace-Up Back Formal Dress
Special Occasion
Look oh-so-stunning and create a gorgeous silhouette in the beautiful Kayla formal dress! She features long fitted sleeves, a subtle sweetheart neckline, and a sexy open back with a lace-up design. Her slim-fit bodice flows out to a floor-sweeping length with a thigh-high slit. Pair this dress with a rhinestone cuff for some added glam to complete your night-out look.
Fit & Features
- Long fitted sleeves
- Slight sweetheart neckline
- Open back with lace-up design
- Slim-fit bodice
- Floor-length skirt, high slit
- Crepe fabric
- Runs true to size
Style Number/Barcode: 05002-1322
Category Name: Long Wedding Guest Dresses
Price: $9.97 $59.90
On Sale: Yes
Availability: Out of Stock
Product Badge:- Sale
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Major Appeal High Slit Maxi Dress
Create major appeal with a maxi dress that wows from all your best angles! The dress features a sleeveless V-neckline, spaghetti straps, and a maxi length silhouette accented with a high side slit. The dress is composed of a smooth knit fabric that offers a form-hugging fit with a moderate stretch. Complete look with heels.
Fit & Features
- Sleeveless V-neckline
- Spaghetti straps
- Maxi length silhouette
- High side slit
- Smooth knit fabric
- Form hugging fit, moderate stretch
- Runs true to size
Style Number/Barcode: 05101-0525
Category Name: Long Wedding Guest Dresses
Price: $5.97 $44.90
On Sale: Yes
Availability: Out of Stock
Product Badge:- Ships Free
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Cecilia Off-The-Shoulder Ruffle Formal Dress
Special Occasion
Ethereal and elegant, the Cecilia mesh off-the-shoulder dress is made for entrances that linger in memory. The cascading ruffle detail and sleek silhouette bring soft movement and romantic polish to every occasion.
Fit & Features
- Mesh-lined fabric
- Off-the-shoulder neckline, ruffled short-sleeve cuffs
- High side slit
- Ruffled form-hugging fit
- Floor-length hem
- Runs true to size
Where to Wear:
Weddings, black tie galas, fancy brunches, bridal showers, baby showers, garden parties, date nights, milestone celebrations, birthdays, dinner parties
Style Number/Barcode: 05002-000299
Category Name: Long Wedding Guest Dresses
Price: $69.90
Availability: Out of Stock
Product Badge:- Ships Free
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Danielle Cold-Shoulder Ruched Knit Formal Dress
Special Occasion
Exude total luxe vibes at your black-tie affair in the Danielle cold-shoulder ruched knit formal dress! Crafted with a stretchy sleek knit fabric, it delivers simple elegance with its chic details. The dress features a cold-shoulder design with adjustable spaghetti straps for a customized fit and short-sleeved cuffs. The bust is shaped with a wired V-neckline for added structure. The ruched front seam will accentuate your curves, leading to a high-cut slit to showcase some leg on the floor-length silhouette.
Fit & Features
- Stretchy sleek knit fabric lined with knit
- Cold-shoulder design, adjustable spaghetti straps, short-sleeved cuffs
- Wired V-neckline, padded bra cups
- High waist, back zipper with hook-eye closure
- Ruched front seam, high slit
- Floor-length form-fitting silhouette
- Runs true to size
Style Number/Barcode: 05002-8294
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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Olivia Formal Marabou Feather Bandage Dress
Special Occasion
Show off a sexy silhouette in the stunningly chic Olivia formal marabou feather bandage dress! She features a strapless wired V-neckline with a fabulous marabou feather trim for a flirtatious flair, a flattering high waist seam, a hidden back zipper closure, and a long-length hem with an alluring back slit accent. The textured bandage knit fabric offers a curve-hugging fit for a smooth and sculpted look with plenty of stretch. Complete the outfit in this long dress with strappy stilettos for your next black-tie affair.
Fit & Features
- Strapless wired V-neckline
- Marabou feather trim
- High waist seam, hidden back zipper, hook and eye closure
- Long-length hem, back slit
- Textured bandage knit fabric, curve-hugging fit, sculpted look, plenty of stretch
- Strapless or sticky bra recommended
- Runs true to size
Style Number/Barcode: 05002-7346
Category Name: Long Wedding Guest Dresses
Price: $19.97 $99.90
On Sale: Yes
Availability: Out of Stock
Product Badge:- Clearance
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Everly Formal Sleeveless Glitter Mermaid Dress
Special Occasion
Bring the glamour with a glitter dress that radiates glitz from all your best angles. The dress features a sleeveless square neckline and a fitted bodice that leads to a curve-hugging mermaid silhouette. The dress is composed of a glitter knit fabric that offers a form-hugging fit with a moderate stretch. Complete look with rhinestone heels.
Fit & Features
- Sleeveless square neckline
- Fitted bodice, flexible boning
- Mermaid silhouette
- Glitter knit fabric
- Form hugging fit, moderate stretch
- Runs true to size
The saturation of glitter varies. Glitter may transfer.
Style Number/Barcode: 05002-1298
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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Caroline One-Shoulder Formal Dress
Special Occasion
So effortless, the Caroline formal dress is simple yet stylishly chic. She features a sleeveless one-shoulder neckline with pleated detailing and a dual spaghetti strap design, a fitted bodice, a high waist seam, and a floor-length silhouette with a high side slit. Style this dress with sparkling statement earrings and an embellished clutch.
Fit & Features
- Sleeveless one-shoulder neckline
- Pleated detailing, dual spaghetti strap design
- Strapless or adhesive bra recommended
- Hidden back zipper, hook and eye closure
- High waist seam, floor-length skirt, side slit
- Crepe fabric
- Form-hugging fit, moderate stretch
- Runs true to size
Style Number/Barcode: 05002-2245
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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Macie Satin Open Back Mermaid Formal Dress
Special Occasion
Sleek, confident, and undeniably refined, the Macie gown is made for evenings that call for quiet drama and unforgettable entrances. This satin mermaid gown features a V-neck, a strappy open back, and a floor-length hem with a flowing train that moves beautifully with every step.
Fit & Features
- Smooth satin fabric with a fluid drape, knit lining
- V-neckline with padded bra cups
- Strappy open back, lower zipper and hook-eye closure
- Fitted mermaid silhouette through the hips
- Floor-length bonded hem with an elegant train
- Runs true to size
Where to Wear:
Black-tie weddings, galas, formal dances, evening ceremonies, milestone celebrations, nights at the theatre, nights at the opera, red-carpet events
Style Number/Barcode: 05002-000945
Category Name: Long Wedding Guest Dresses
Price: $99.90
Availability: In Stock
Available Color: RED, SAGE
Available Size: M, L, XS, S
Product Badge:- Ships Free
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Rae Lace-Up Glitter Mermaid Dress
Special Occasion
The long mermaid dress features a glitter knit fabrication, a sleeveless cowl neckline, spaghetti straps that lead to a cross-back design, and a lace-up back design. Complete the formal outfit with a satin clutch.
Fit & Features
- Lined glitter knit fabrication
- Sleeveless cowl neckline
- Spaghetti straps lead to x-back design
- Lace-up back design
- Mermaid silhouette
- Long hem length
- Runs true to size
Style Number/Barcode: 05002-8865
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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Khloe Long Glitter Formal Gown
Special Occasion
Have a sparkling night in our Khloe! She is designed with a v-neckline, spaghetti straps that lead to a criss-cross back, and an empire waist seam. She has a form fitting slim silhouette that leads down to a floor sweeping mermaid hemline. She is composed of a knit material that offers moderate stretch and is embellished with glitter that reflects red throughout! Glitter may transfer.
Model is 5'7" with a 34" 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: 05002-0370
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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Kiele Formal Bustier Mermaid Long Dress
Special Occasion
Be the highlight of every glam event in the Kiele formal bustier long dress! She features a sweetheart neckline, adjustable spaghetti straps, and a built-in padded underwire bust providing support and comfort. The bonded floor length hem and mermaid silhouette exude sophistication and a voluminous effect! The formal long dress is composed of a smooth knit fabric that hugs like an hourglass and has a stretchy full knit lining. Complete the look with a rhinestone necklace and earrings for a black tie gala or formal dance!
Fit & Features
- Sleeveless sweetheart neckline
- Adjustable spaghetti straps
- Back zipper and hook-eye closure
- Built-in padded underwire bust
- Mermaid silhouette, bonded floor-length hem
- Smooth knit fabric, full stretchy knit lining
- Runs true to size
Style Number/Barcode: 05002-7845
Category Name: Long Wedding Guest Dresses
Price: $19.97 $89.90
On Sale: Yes
Availability: Out of Stock
Product Badge:- Sale
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Alissa Satin Corset Slit Formal Dress
Special Occasion
The Alissa satin mermaid gown sculpts and glides in all the right places. The structured corset bodice and high side slit strike that perfect balance of polished and daring—because the RSVP said dress to impress.
Fit & Features
- Stretch satin-lined fabric
- Strapless sweetheart neckline, non-slip grip lining
- Padded bra cups, knotted bust accent
- Corset bodice, flexible boning, back zipper and hook-eye closure
- High side slit
- Mermaid floor-length silhouette
- Runs true to size
Where to Wear:
Prom, black-tie weddings, formal galas, birthday events, engagement parties, formal occasions
Style Number/Barcode: 05002-001281
Category Name: Long Wedding Guest Dresses
Price: $89.90
Availability: In Stock
Available Color: WINE
Available Size: XS, S, M, L, XL
Product Badge:- Ships Free
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Gigi Cowl Neck Button Slit Satin Formal Dress
Special Occasion
The Gigi satin formal dress is a stunning choice for occasions that call for grace and poise! Crafted from a smooth satin jacquard pattern fabric, this column dress is forever flattering from the cowl neckline to the high slit adorned with faux button accents.
Fit & Features
- Jacquard pattern, premium satin fabric
- Cowl neckline
- Adjustable spaghetti straps
- Back zipper and hook-eye closure
- Side faux button accents, high slit
- Column silhouette
- Floor-length hem
- Runs true to size
Where to Wear:
Weddings, bridesmaids, galas, black tie celebrations, elegant functions, parties
Style Number/Barcode: 05002-9602
Category Name: Long Wedding Guest Dresses
Price: $19.97 $74.90
On Sale: Yes
Availability: Out of Stock
Product Badge:- Sale
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Laurel Lace-Up A-Line Slit Satin Formal Dress
Special Occasion
A timeless silhouette gets a hint of modern flair on the Laurel satin formal dress perfect for bridesmaids, wedding guests, or fancy parties! Made from luxuriously silky satin fabric, she boasts a lace-up back designed to turn heads and a flattering V-neckline that highlights your bust. The A-line silhouette accentuates your figure while the high front slit adds a touch of allure, this floor-length gown will make you feel elegant and sophisticated at any formal event! Complete the look with dainty earrings and heels for a chic evening style.
Fit & Features
- Satin fabric lined with knit
- Spaghetti straps
- Padded bra cups
- Lace-up, back zipper and hook-eye closure
- High front slit
- A-Line silhouette
- Runs true to size
Style Number/Barcode: 05002-8130
Category Name: Long Wedding Guest Dresses
Price: $9.97 $74.90
On Sale: Yes
Availability: Out of Stock
Product Badge:- Sale
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Raina Glitter Knit High Slit Mermaid Dress
Special Occasion
Create a stunning spark in the gorgeous Raina glitter knit mermaid dress at prom, weddings, or fancy parties! She features a sleeveless V-neckline with a built-in padded bust, bungee spaghetti straps, an open back with a cross-back strappy design, a hip-hugging fit, stylish ruching with an adjustable drawstring, a floor-sweeping hem with a short cascading train, a chic front slit, and a mermaid silhouette. The semi-sheer glitter knit fabric includes a mini-length lining. Complete the look in this formal long dress with rhinestone heels.
Fit & Features
- Sleeveless V-neckline, padded bust
- Bungee spaghetti straps, open back, cross-back strappy design
- High waist seam, hip-hugging fit, ruching, adjustable drawstring
- Floor-sweeping hem, short train, front slit, mermaid silhouette
- Semi-sheer glitter knit fabric, mini-length knit lining, moderate stretch
- Bra optional
- Runs true to size
Style Number/Barcode: 05002-6946
Category Name: Long Wedding Guest Dresses
Price: $9.97 $109.90
On Sale: Yes
Availability: Out of Stock
Product Badge:- Clearance
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Steff Off-The-Shoulder Mermaid Slit Formal Dress
Special Occasion
An off-the-shoulder formal dress features a twisted sweetheart neckline and a flattering mermaid silhouette boasting a high front slit. Perfect for homecoming or a banquet.
Fit & Features
- Smooth knit fabric, moderate stretch
- Off-the-shoulder sweetheart twisted neckline
- High front slit
- Mermaid floor-length silhouette
- Runs true to size
Style Number/Barcode: 05002-8768
Category Name: Long Wedding Guest Dresses
Price: $29.97 $69.90
On Sale: Yes
Availability: Out of Stock
Product Badge:- Sale
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Celia Formal Sequin Two-Piece A-Line Dress
Special Occasion
Make your grand entrance at prom in the Celia Formal Sequin Two-Piece A-Line dress sure to leave the room wonderstruck! She's designed in a two-piece silhouette with a strapless, tube sequin embroidered top with a built-in padded bust. Bring the drama to the night in her A-line satin skirt featuring a floor-sweeping silhouette with a slit accent that's perfect styling with glitzy heels to add extra shine to your prom night ensemble!
Fit & Features
- Two-piece design
- Strapless sequin tube top, built-in padded bust
- Attached on the back, zipper and hook and eye closure
- A-line satin-lined skirt
- Side slit, floor-length hem
- No stretch
- Runs true to size
Style Number/Barcode: 05002-2005
Category Name: Long Wedding Guest Dresses
Price: $19.97 $129.90
On Sale: Yes
Availability: Out of Stock
Product Badge:- Clearance
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Elina Halter Cutout Mermaid Dress
Special Occasion
Made for unforgettable entrances, the Elina halter mermaid dress stuns with a keyhole cutout and an open back that flows into a sleek, sculpted silhouette. The slinky knit flatters every curve with effortless sophistication.
Fit & Features
- Slinky knit fabric, high stretch
- Sleeveless twisted halter neckline, keyhole cutout
- Tie-back halter straps
- Open back, lower twist-back design
- Ruching
- Floor-length mermaid silhouette
- Runs true to size
Where to Wear:
Weddings, bridesmaids, black-tie parties, dressed-up dinners, red-carpet events, galas, and formal affairs.
Style Number/Barcode: 05002-000348
Category Name: Long Wedding Guest Dresses
Price: $59.90
Availability: Out of Stock
Product Badge:- Ships Free