Mermaid Dresses
Mermaid dresses are made for entrances—and every camera flash after. Keep it photo-ready and elegant with cocktail midi or long silhouettes that hug, shape, and flare in all the right places. Try a corset bodice, off-the-shoulder neckline, cap sleeve, long sleeve, or cowl neck in slinky jersey knit, mesh, or velvet. Rhinestones, sequins, and beading bring the shine, while burgundy, plum, navy, hunter green, and black set the mood. Perfect for sorority formals, a guest of wedding look, black tie events, or a gala where showing up polished is the dress code. Add heels, a sleek clutch, and let the silhouette handle the rest.
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Mermaid Dresses with a Signature Flared Silhouette
Mermaid Dresses are made for entrances, pairing a curve-hugging fit with a dramatic flare at or around the knee. The silhouette brings instant shape to special-occasion dressing, whether your style leans romantic, glamorous, or a little more playful. From fall celebrations to formal holiday events and New Year’s Eve, these dresses put the focus on a defined silhouette with movement at the hem.
Mermaid Gowns with Drama in the Details
The fitted-to-flared shape is only the beginning. Corset bodices can add structure, while draping, ruching, wrap fronts, bows, and high slits give mermaid gowns different personalities. Open backs and hardware accents like pearls or rhinestones can bring even more impact to floor-length styles.
Necklines also change the effect of dresses with mermaid silhouettes. Off-shoulder and sweetheart designs lean romantic, while halter, plunge, cowl-neck, spaghetti-strap, and strapless styles can take the silhouette in a sleeker or more alluring direction. For an even more dramatic formal shape, explore ball gowns.
Mermaid Dresses for Formal Celebrations
Mermaid silhouettes naturally suit occasions where dressing up is part of the experience. For weddings, long bridesmaid dresses with fitted shapes can create an elegant bridal-party look, while floor-length mermaid styles bring drama to formal celebrations, holiday events, and New Year’s Eve.
For an elevated take on statement dressing, explore Windsor's Luxe Dress Collection with elevated details that are a statement. Or discover more women's dresses when you want to compare mermaid silhouettes with other fits.
Mermaid Dresses Made for Photo-Worthy Moments
The signature fitted shape and dramatic flared hem of a mermaid dress can look especially striking in photos, making the silhouette a standout for engagement shoots, wedding portraits, anniversaries, birthdays, and other milestone moments. Draping, bows, open backs, slits, and sparkling details can add even more interest from different angles—so find your light, strike a pose, and make the moment yours.
Love how you styled your Windsor mermaid dress? Share your look and tag @windsorstore on your favorite social platform for a chance to be featured on our website.
What Is a Mermaid Dress?
A mermaid dress is fitted through the bodice and hips before flaring at or around the knee, creating the shape associated with a mermaid tail. The close fit through the upper portion of the dress distinguishes the silhouette from styles that begin to flare higher on the body.
Windsor’s mermaid dresses range from sleek and curve-hugging to more dramatic designs with corset bodices, ruching, open backs, slits, draping, and statement details.
Are Mermaid Dresses Formal?
Mermaid dresses are often associated with formal occasions because the fitted silhouette and dramatic floor-length flare create an elevated look. Mermaid gowns can work especially well for formal weddings, galas, holiday celebrations, and other events where a statement dress fits the dress code.
The silhouette can also work for semi-formal occasions depending on the length, fabrication, and details. When choosing your dress, consider the invitation and venue along with how dramatic you want the overall look to feel.
Find Windsor’s Mermaid Dresses for fall and winter celebrations, with fitted silhouettes, dramatic flared hems, and statement details designed for memorable occasions.
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Poppy Satin Corset Formal Dress
HanSpecial Occasion
For nights that call for a little extra drama, the Poppy satin mermaid gown sculpts and smooths in all the right places. The structured corset bodice and lace-up back bring a refined edge, while the sleek silhouette and slit create a striking, head-turning finish.
Fit & Features
- Stretch satin fabric, knit lining
- Sweetheart neckline, padded bra cups, mesh applique, beaded trim
- Adjustable spaghetti straps
- Corset-structured bodice, lace-up back, zipper and hook-eye closure
- High front slit, mermaid floor-length silhouette
- Runs true to size
Where to Wear:
Prom, black tie occasion, wedding, gala, red carpet events, milestone parties
Style Number/Barcode: 05002-001511
Category Name: Mermaid Dresses
Price: $99.90
Availability: Out of Stock
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Kara Formal Floral High-Slit Mermaid Dress
Special Occasion
For the evening when elegance feels instinctive, The Kara stuns in floral lace with a sculpted mermaid silhouette and a striking front slit that reveals just the right amount of movement. Beaded sequins shimmer across the V-neck bodice and delicate straps, creating a look that feels refined, romantic, and unforgettable from ceremony to last dance.
Fit & Features
- Floral lace fabric with a smooth knit lining
- Sleeveless V-neckline with adjustable spaghetti straps
- Padded bra cups
- Lace-up back with lower zipper and hook-eye closure
- High front-slit
- Fitted mermaid silhouette
- Runs true to size
Where to Wear:
Prom, galas, black-tie parties, red-carpet events, and formal affairs.
Style Number/Barcode: 05002-001512
Category Name: Mermaid Dresses
Price: $19.97 $129.90
On Sale: Yes
Availability: In Stock
Available Color: WHITE, PRINT
Available Size: XS
Product Badge:- Sale
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Audra Satin Mermaid Formal Dress
Special Occasion
Designed for your most RSVP-worthy moments, the Audra satin mermaid gown moves with quiet drama and undeniable polish. A sweetheart neckline, wide shoulder straps, and lace-up back come together for a sculpted, floor-length silhouette that feels equal parts timeless and striking.
Fit & Features
- Stretch satin fabric, knit lining, high stretch
- Sweetheart neckline, padded bust, ruched seam
- Wide shoulder straps
- Lace-up back, lower zipper and hook-eye closure
- Mermaid floor-length silhouette
- Runs true to size
Where to Wear:
Prom, black tie weddings, formal galas, upscale celebrations, red carpet events
Style Number/Barcode: 05002-001516
Category Name: Mermaid Dresses
Price: $79.90
Availability: Out of Stock
Product Badge:- Ships Free
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Annie Sequin Floral Lace-Up Formal Dress
Special Occasion
The Annie gown brings a sense of quiet drama the moment you walk into the room. Designed with delicate sequin embellishment and a striking floral hem print, this sculpted mermaid dress is finished with a lace-up cutout back that adds an unforgettable final detail.
Fit & Features
- Sequin-embellished fabric, smooth knit lining
- V-neckline, padded bra cups, adjustable spaghetti straps
- Lace-up cutout back detail, zipper with hook-eye closure
- Mermaid silhouette
- Statement floral printed floor-length hem
- Runs true to size
Where to Wear:
Prom, bridal, rehearsal dinners, engagement parties and photoshoots, wedding showers, spring galas, formal parties, birthday celebrations, destination weddings, resort dinners
Style Number/Barcode: 05002-001514
Category Name: Mermaid Dresses
Price: $19.97 $129.90
On Sale: Yes
Availability: Out of Stock
Product Badge:- Ships Free
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Sohni Satin Rhinestone Trim Mermaid Formal Dress
Special Occasion
Polished with just the right touch of shine, the Sohni gown is made for evenings that call for elevated glamour. Crafted from satin, its rhinestone trim bust and straps, high front slit, and mermaid silhouette create a look that feels refined, confident, and unforgettable.
Fit & Features
- Smooth satin fabric with stretch
- Rhinestone trim along the padded bust and straps
- Back zipper and hook-eye closure
- Mermaid silhouette
- High front slit for movement
- Floor length hem
- Runs true to size
Where to Wear:
Black-tie weddings, galas, prom, milestone celebrations, big birthday events, red-carpet occasions, award dinners, formal receptions
Style Number/Barcode: 05002-001522
Category Name: Mermaid Dresses
Price: $99.90
Availability: In Stock
Available Color: PLUM
Available Size: XS, S, M
Product Badge:- Ships Free
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Brianne Mesh Convertible Formal Dress
Special Occasion
For the kind of entrance that quiets the room in the best way, the Brianne dress is all about fluid drama and refined sparkle. Crafted from ruched mesh fabric adorned with rhinestones and faux pearls, this mermaid floor-length dress offers multiple ways to wear neckline that lets you style the moment your way.
Fit & Features
- Mesh fabric, partial knit lining, colored rhinestone accents
- Convertible necklace, multiple ways to wear
- Padded bra cups
- Back zipper and hook-eye closure
- High front slit
- Mermaid floor-length silhouette
- Runs true to size
Where to Wear:
Prom, black tie wedding, galas, balls, red carpet awards ceremony, milestone birthday dinner, upscale cocktail soiree, anniversary parties, rehearsal dinners, special date nights
Style Number/Barcode: 05002-001526
Category Name: Mermaid Dresses
Price: $119.90
Availability: In Stock
Available Color: BLACK
Available Size: XS, S, M, L
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Mae Sequin Knit Strappy Formal Dress
Special Occasion
For evenings that shimmer long after the lights dim, the Mae sequin pattern gown delivers sleek, sculpted glamour. Designed in a mermaid floor-length silhouette with delicate straps and a striking strappy open back, it hugs in all the right places before flowing into a dramatic finish made for unforgettable arrivals.
Fit & Features
- Sequin-embellished pattern
- Sleek knit lined stretchy fabric
- Square neckline, spaghetti straps, padded bra cups
- Strappy open back, zipper and hook-eye closure
- Mermaid floor-length silhouette
- Runs true to size
Where to Wear:
Prom, weddings, galas, black tie celebrations, red-carpet events, milestone birthdays, date nights, award dinners
Style Number/Barcode: 05002-001525
Category Name: Mermaid Dresses
Price: $149.90
Availability: Out of Stock
Product Badge:- Ships Free
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Irie Sequin Lace Mermaid Formal Dress
Special Occasion
Designed for evenings that call for polish with presence, the Irie glides with a confident, sculpted ease. Sequin lace shapes a floor-length mermaid silhouette, finished with a V neck and a lace up cutout back that feels refined yet striking.
Fit & Features
- Sequin lace fabric with knit lining
- V-neckline, padded bra cups, adjustable spaghetti straps
- Mermaid floor-length silhouette
- Lace up cutout back with zipper and hook-eye closure
- Runs true to size
Where to Wear:
Prom, big birthday event, formal milestone celebrations, balls, galas, garden parties, special occasion dinner, red-carpet event
Style Number/Barcode: 05002-001527
Category Name: Mermaid Dresses
Price: $149.90
Availability: In Stock
Available Color: YELLOW
Available Size: M
Product Badge:- Ships Free
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Giorgina Lace Corset Flower Formal Dress
Special Occasion
The Giorgina lace mermaid gown feels made for candlelit entrances and unforgettable photographs. The corset-inspired bodice, delicate floral straps, and curve-skimming silhouette bring a modern softness to an undeniably timeless evening look.
Fit & Features
- Lace woven fabric
- Sweetheart neckline, floral appliqué shoulder straps
- Corset bodice, flexible boning
- Back zipper closure
- Fitted mermaid silhouette
- Flared floor-length hem
- Runs true to size
Where to Wear:
Bridal celebrations, rehearsal dinners, courthouse weddings, ceremonies, elopements, engagement photoshoots and parties, honeymoons, anniversaries, fancy birthday brunch, formal milestone parties, galas
Style Number/Barcode: 05002-001530
Category Name: Mermaid Dresses
Price: $99.90
Availability: Out of Stock
Product Badge:- Ships Free
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Summer Tropical Strappy Formal Dress
Special Occasion
The Summer dress pairs a sleek satin mermaid fit with a bold tropical floral print that feels equal parts polished and unforgettable. Mini rhinestone embellishments catch the light with every step, while the strappy back detail adds an unexpected, head-turning finish.
Fit & Features
- Tropical floral print, smooth-lined knit fabric with stretch
- Mini rhinestone embellishments
- Strapless neckline, non-slip grip lining, padded bra cups
- Bungee strappy back with mini hoop inserts
- Mermaid floor-length silhouette
- Runs true to size
Where to Wear:
Destination weddings, honeymoons, vacations, resorts, outdoor soirees, prom
Style Number/Barcode: 05002-001532
Category Name: Mermaid Dresses
Price: $19.97 $74.90
On Sale: Yes
Availability: In Stock
Available Color: ORANGE
Available Size: XS, S
Product Badge:- Sale
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Carlie Satin Slit Mermaid Formal Dress
Special Occasion
Sleek, sculpted, and made for a polished entrance, the Carlie satin mermaid gown drapes effortlessly with soft pleating and a high front slit that adds just the right touch of allure. It’s the kind of silhouette that feels timeless at first glance—and unforgettable the second you walk in.
Fit & Features
- Stretch satin fabric, knit lining
- Sweetheart neckline, wide shoulder straps, padded bra cups
- Back zipper and hook-eye closure
- Softly pleated bodice
- High front slit
- Mermaid silhouette, floor-length hem
- Runs true to size
Where to Wear:
Prom, weddings, bridesmaids, black tie gala, formal celebrations
Style Number/Barcode: 05002-001547
Category Name: Mermaid Dresses
Price: $79.90
Availability: In Stock
Available Color: HUNTER, RUST, NAVY
Available Size: XS, S, M, L, XL
Product Badge:- Ships Free
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Emma Lace Mermaid Formal Dress
Special Occasion
Elegant with just the right amount of intrigue, the Emma lace dress was designed for evenings that call for a lasting impression. This lace mermaid gown features a sculpting silhouette, plunging halter neckline, and open back detail that feels timeless, flattering, and undeniably chic.
Fit & Features
- Lace fabric, stretchy knit lining
- Halter neckline, tie straps, padded bra cups
- Back zipper and hook-eye closure
- Mermaid floor length silhouette
- Runs true to size
Where to Wear:
Wedding guests, galas, engagement parties, formal milestones, special date nights, vacations, anniversaries, honeymoons
Style Number/Barcode: 05002-001549
Category Name: Mermaid Dresses
Price: $89.90
Availability: In Stock
Available Color: BROWN
Available Size: M
Product Badge:- Ships Free
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Camille Plunge Mermaid Formal Dress
Special Occasion
The Camille mermaid gown brings effortless glamour to every RSVP. The plunging halter neckline, sculpted silhouette, and crystal hardware detail strike the perfect balance between sleek sophistication and after-dark drama.
Fit & Features
- Slinky knit-lined stretchy fabric
- Plunge halter neckline, rhinestone-embellished hardware insert
- Open back, zipper and hook-eye closure
- Center front long sash detail
- Mermaid floor-length silhouette
- Runs true to size
Where to Wear:
Bridal celebrations, elopements, courthouse weddings, rehearsal dinners, engagement photoshoots, black tie galas, fancy birthday events, red carpet occasions, cocktail soirees
Style Number/Barcode: 05002-001550
Category Name: Mermaid Dresses
Price: $89.90
Availability: In Stock
Available Color: WHITE, NAVY
Available Size: XS, S, M, L, XL
Product Badge:- Ships Free
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Meryl Jacquard Mermaid Formal Dress
Special Occasion
Tailored yet romantic, the Meryl jacquard mermaid gown is all about sculpted elegance with a modern edge. The structured corset bodice with boning and soft ruching defines the silhouette, while the elongated shape creates a look that feels effortlessly refined from every angle.
Fit & Features
- Jacquard fabric with subtle textured pattern
- Square neckline, wide tank straps
- Corset bodice with structured boning
- Mermaid silhouette with floor-length hem
- Runs true to size
Where to Wear:
Prom, wedding guests, graduations, birthdays, formal events, rehearsal dinners, vacations
Style Number/Barcode: 05002-001554
Category Name: Mermaid Dresses
Price: $89.90
Availability: In Stock
Available Color: RED, BROWN
Available Size: XXS, XS, S, M
Product Badge:- Ships Free
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Holly Crochet Halter Mermaid Formal Dress
Special Occasion
The Holly crochet mermaid gown was made for the kind of entrance that lingers long after the night ends. Featuring a plunging halter neckline, sculpted silhouette, and open back detail, it brings a modern romance to every dressed-up evening on your calendar.
Fit & Features
- Crochet fabric, stretchy knit lining
- Halter V-neckline with tie straps
- Back zipper and hook-eye closure
- Mermaid floor-length silhouette
- Runs true to size
Where to Wear:
Weddings, elopements, courthouse weddings, receptions, bridal celebrations, rehearsal dinners, engagement photoshoots, anniversaries, honeymoons, formal milestone parties, galas
Style Number/Barcode: 05002-001565
Category Name: Mermaid Dresses
Price: $64.90
Availability: Out of Stock
Product Badge:- Ships Free
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Seraphine Off-The-Shoulder Formal Dress
Special Occasion
The Seraphine mesh gown was made for candlelit entrances and dance floors that don’t quit. The off shoulder neckline, ruched waist detail, and thigh high slit create a sculpted mermaid silhouette that feels equal parts polished and alluring.
Fit & Features
- Mesh fabric, knit lining
- Off-the-shoulder folded neckline, padded bra cups
- Back zipper and hook-eye closure
- High side slit
- Wrap knot waist accent
- Mermaid floor-length silhouette
- Runs true to size
Where to Wear:
Black tie weddings, galas, engagement parties, birthday dinners, formal celebrations, vacations, honeymoons, date nights, cocktail parties
Style Number/Barcode: 05002-001558
Category Name: Mermaid Dresses
Price: $59.90
Availability: In Stock
Available Color: BROWN
Available Size: XS
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Lana Formal Ruched Glitter Mermaid Dress
Special Occasion
There is a certain kind of evening that calls for shimmer in motion. The Lana is crafted from luminous glitter mesh in a sculpted mermaid silhouette, featuring a softly draped neckline and artful ruching at the back that creates a breathtaking finish from every angle.
Fit & Features
- Glitter mesh-lined fabrication high stretch
- Sleeveless v-neckline, padded bra cups
- Adjustable spaghetti straps
- Open back with tie-back detail
- Ruching
- Floor-length mermaid silhouette
- Runs true to size
Where to Wear:
Prom, big milestone celebrations, red carpet occasions, black tie galas, weddings, spring balls
Style Number/Barcode: 05002-001576
Category Name: Mermaid Dresses
Price: $79.90
Availability: In Stock
Available Color: BLACK
Available Size: XS, S, M, L
Product Badge:- Ships Free
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Kasey Floral Rhinestone Formal Dress
Special Occasion
The Kasey floral mesh mermaid gown blends soft romance with a sculpted, body-skimming fit. The ruched detailing, delicate shimmer accents, and lace-up back create a look that feels equal parts polished and unforgettable.
Fit & Features
- Floral print mesh fabric with lining, rhinestone embellished
- Cowl neckline, spaghetti straps, padded bra cups
- Lace-up open back
- Ruched mermaid floor-length silhouette
- Runs true to size
Where to Wear:
Destination weddings, vacations, honeymoons, anniversaries, cocktail parties, birthday dinners, and summer black-tie events.
Style Number/Barcode: 05002-001602
Category Name: Mermaid Dresses
Price: $84.90
Availability: In Stock
Available Color: CORAL
Available Size: M, XL
Product Badge:- Ships Free
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Paradise Ready Floral Maxi Dress
Unlock vacation energy in this floral maxi dress perfect for cocktail dinners, sunset strolls, and looking chic on the beach! This dress is designed in a flattering mermaid fit with a flared hem that brings effortless drama to every step.
Fit & Features
- Statement tropical floral print
- Mesh fabric lined with soft knit
- Tube strapless neckline
- Mermaid fit
- Flared maxi-length hem
- Runs true to size
Style Number/Barcode: 05101-001141
Category Name: Mermaid Dresses
Price: $9.97 $42.90
On Sale: Yes
Availability: Out of Stock
Product Badge:- Ships Free
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Carolyn Crepe Midi Formal Dress
Special Occasion
A study in modern romance, the Carolyn crepe midi dress moves with quiet confidence and just the right touch of allure. From the square neckline to the sheer lace cap sleeves and cutout back with delicate button detailing, it’s designed for that effortlessly polished entrance—and the compliments that follow.
Fit & Features
- Crepe fabric lined with stretchy knit
- Square neckline
- Sheer lace cap sleeves
- Cutout back, sheer lace panel with button closure
- Back zipper and hook-eye closure
- Mermaid silhouette, flared midi-length hem
- Runs true to size
Where to Wear:
Bridal celebrations, rehearsal dinners, engagement photoshoots and parties, bachelorettes, weddings, cocktail parties, date nights, graduations, birthdays, wineries, honeymoons, vacations
Style Number/Barcode: 05001-000746
Category Name: Mermaid Dresses
Price: $54.90
Availability: Out of Stock
Product Badge:- Ships Free
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Adella Velvet Strapless Mermaid Formal Dress
Special Occasion
Sleek and unforgettable, the Adella velvet gown is designed for evenings that call for refined drama and confident elegance. A strapless twist neckline, sculpted mermaid silhouette, and subtle cutout back come together in a look that feels timeless yet undeniably striking.
Fit & Features
- Plush velvet fabric
- Strapless twist neckline
- Cutout back, lower ruched seam
- Mermaid silhouette
- Floor-length hem
- Runs true to size
Where to Wear:
Weddings, black tie galas, formal dances, rehearsal dinners, engagement parties, milestone celebrations, fancy date nights, award ceremonies, elegant parties, opera nights
Style Number/Barcode: 05002-001646
Category Name: Mermaid Dresses
Price: $19.97 $69.90
On Sale: Yes
Availability: Out of Stock
Product Badge:- Ships Free
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Elowen Floral Lace Mesh Formal Dress
Special Occasion
The Elowen gown feels made for champagne toasts and candlelit entrances. This floral mesh mermaid dress features a delicate lace bust, sweetheart neckline, and cutout back that brings effortless allure.
Fit & Features
- Floral print, mesh and lace fabric, lined
- Sweetheart neckline, padded bra cups, wide tank straps
- Cutout back with hook-eye strap, lower zipper and hook-eye closure
- Mermaid floor-length silhouette
- Runs true to size
Where to Wear:
Outdoor weddings, destination weddings, vacations, honeymoons, birthday dinners, cocktail soirees, engagement parties, anniversaries, garden parties, showers, graduations
Style Number/Barcode: 05002-001668
Category Name: Mermaid Dresses
Price: $69.90
Availability: In Stock
Available Color: PINK
Available Size: XS, S, M, L, XL
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Claire Floral Slit Mermaid Formal Dress
Special Occasion
Romantic with just the right amount of allure, the Claire ruched mesh gown feels made for moonlit weddings and champagne-filled evenings. The soft floral print, delicate cowl neckline, and thigh high slit create a mermaid silhouette that moves beautifully from ceremony to reception.
Fit & Features
- Floral abstract print, mesh-lined fabric
- Cowl neckline, padded bra cups
- Adjustable spaghetti straps
- Back zipper and hook-eye closure
- High front slit, ruching
- Mermaid floor-length silhouette
- Runs true to size
Where to Wear:
Weddings, engagement parties, bridal showers, vacations, honeymoons, birthday dinners, formal milestone celebrations, date nights, garden parties
Style Number/Barcode: 05002-001648
Category Name: Mermaid Dresses
Price: $64.90
Availability: In Stock
Available Color: IVORY
Available Size: XS, S, M, L, XL
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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: Mermaid Dresses
Price: $74.90
Availability: Out of Stock
Product Badge:- Ships Free