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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Melonie Open Back Mermaid Formal Dress
Special Occasion
Delicate, luminous, and made for your forever moments. The Frankie embodies quiet luxury with its beaded lace appliqué and fluid mermaid silhouette. The halter neckline and open tie-back add a modern touch to its timeless romance—creating a look that feels ethereal yet effortlessly confident.
Fit & Features
- Smooth knit fabric, stretchy knit lining, moderate stretch
- Plunge halter neckline with lace beaded applique, padded bra cups
- Open back with adjustable tie closure
- Back zipper and hook-eye closure
- Mermaid silhouette
- Floor-length hem
- Runs true to size
Where to Wear:
Wedding ceremonies and receptions, rehearsal dinners, engagement photoshoots, bridal celebrations, black-tie galas, anniversaries, red-carpet evenings
Style Number/Barcode: 05002-000424
Category Name: Mermaid Dresses
Price: $119.90
Availability: Out of Stock
Product Badge:- Ships Free
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Saylor Velvet Lace-Up Slit Mermaid Formal Dress
Special Occasion
Created for nights that feel cinematic, the Saylor velvet gown features a sultry high slit, corset bodice, and lace-up back detail. The sweeping mermaid silhouette moves with elegance, ensuring every step feels like a statement.
Fit & Features
- Plush velvet with stretch
- Cowl neckline
- Adjustable spaghetti straps
- Corset bodice, flexible boning
- Lace-up back design
- High front wrap slit
- Mermaid silhouette, floor-length hem
- Runs true to size
Where to Wear:
Black tie weddings, galas, military balls, formal engagement parties, rehearsal dinners, nights at the theatre, red-carpet occasions
Style Number/Barcode: 05002-000428
Category Name: Mermaid Dresses
Price: $19.97 $89.90
On Sale: Yes
Availability: Out of Stock
Product Badge:- Ships Free
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Helga Velvet Lace-Up Slit Mermaid Dress
Special Occasion
Command the room in the Helga velvet mermaid dress, designed with a sultry lace-up back and a sweeping slit for effortless allure. The draped bodice and figure-hugging silhouette strike the perfect balance of elegance and drama.
Fit & Features
- Velvet fabric with full-length lining, moderate stretch
- Sleeveless sweetheart neckline, pleated cowl neck overlay, padded bra cups
- Corset bodice, flexible boning
- Adjustable spaghetti straps, open lace-up back
- Pleated faux wrap-front design, high slit
- Floor-length mermaid silhouette
- Runs true to size
Where to Wear:
Formal weddings, bridesmaids, galas, red-carpet events, and black-tie parties.
Style Number/Barcode: 05002-000427
Category Name: Mermaid Dresses
Price: $19.97 $89.90
On Sale: Yes
Availability: Out of Stock
Product Badge:- Sale
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Angelina Leopard Print Satin Mermaid Dress
Special Occasion
Designed to turn heads, the Angelina satin mermaid dress hugs every curve in a bold leopard print with a sultry open back. The sleek cowl neckline and fluid floor-sweeping silhouette bring a touch of effortless allure to your luxe night out.
Fit & Features
- Premium satin fabric
- Leopard print
- Sleeveless cowl neckline
- Spaghetti straps
- Open back, lower tie detail
- Floor-sweeping mermaid silhouette
- Runs true to size
Where to Wear:
Birthday celebrations, dressed-up date nights, rooftop parties, and luxe nights out.
Style Number/Barcode: 05002-000440
Category Name: Mermaid Dresses
Price: $59.90
Availability: Out of Stock
Product Badge:- Ships Free
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Elaine Jacquard Mesh Mermaid Dress
Special Occasion
Softly chic and subtly sultry, the Elaine jacquard mesh mermaid dress flows with an effortless elegance made for candlelit dinners and red-carpet moments alike. The ruched halter neckline and open-back detail bring just the right touch of allure.
Fit & Features
- Jacquard mesh fabric, moderate stretch
- Sleeveless scoop neckline, ruched bust, padded bra cups
- Spaghetti straps
- Open back, cross-back strappy design
- Lower back twisted strap, zipper and hook-eye closure
- Floor-length mermaid silhouette
- Runs true to size
Where to Wear:
Weddings, bridesmaids, black-tie parties, red-carpet events, formal dinner parties, galas, and fancy soirees.
Style Number/Barcode: 05002-000435
Category Name: Mermaid Dresses
Price: $69.90
Availability: In Stock
Available Color: IVORY, PLUM-2, YELLOW-2
Available Size: XL, M, L, S
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Sydney Lace Corset Mermaid Slit Formal Dress
Special Occasion
Made for the spotlight, the Sydney lace gown drapes with a soft cowl neckline and sculpting bodice. The floor-length silhouette with a high side slit and criss-cross back straps creates an unforgettable, form-hugging finish.
Fit & Features
- Lace-lined fabric, moderate stretch
- Cowl neckline, padded bra cups
- Adjustable spaghetti straps
- Criss-cross back, zipper and hook-eye closure
- Flexible boning inserts, high side slit
- Mermaid silhouette, floor-length hem
- Runs true to size
Where to Wear:
Weddings, black tie galas, formal celebrations, fancy date nights, glam industry parties, red carpet events, upscale birthdays
Style Number/Barcode: 05002-000442
Category Name: Mermaid Dresses
Price: $59.90
Availability: In Stock
Available Color: RED
Available Size: L, XL
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Clara Velvet Mesh Lace-Up Formal Dress
Special Occasion
Designed to turn every entrance into a statement, the Clara formal dress blends vintage allure with modern allure. Crafted from velvet burnout mesh, this gown features a sculpting ruched silhouette, a soft square neckline, and a lace-up back that adds a touch of drama to its hourglass shape. Elegant, sleek, and undeniably magnetic—this one’s built for the spotlight.
Fit & Features
- Velvet burnout pattern, mesh-lined fabric with stretch
- Cowl neckline, lace padded bra cups
- Lace trim adjustable shoulder straps
- Back lace-up and lower zipper and hook-eye closure
- Side ruched seams
- Mermaid silhouette, floor-length hem
- Runs true to size
Where to Wear:
Weddings, black-tie galas, formal receptions, holiday soirees, red-carpet events, romantic date nights, anniversaries, upscale celebrations
Style Number/Barcode: 05002-000445
Category Name: Mermaid Dresses
Price: $79.90
Availability: In Stock
Available Color: BURGUNDY
Available Size: XS, S, M
Product Badge:- Ships Free
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Winnie Mesh Long Sleeve Mermaid Formal Dress
Special Occasion
Understated glamour, perfected. The Winnie formal dress is a masterclass in sleek sophistication—crafted from stretch mesh with sheer long sleeves, a ruched waist, and a sculpted mermaid silhouette. The high crew neckline offers balance to the daring open back, creating a look that feels effortlessly polished and unforgettable from every angle.
Fit & Features
- Mesh-lined stretch fabric
- Crew neckline
- Sheer fitted long sleeves
- Open back cutout design, lower zipper and hook-eye closure
- Mermaid silhouette
- Floor-length hem
- Runs true to size
Where to Wear:
Formal weddings, black-tie dinners, cocktail soirees, holiday parties, galas, formal celebrations, engagement parties, rehearsal dinners
Style Number/Barcode: 05002-000446
Category Name: Mermaid Dresses
Price: $59.90
Availability: Out of Stock
Product Badge:- Ships Free
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Juliette Flocked Mesh Mermaid Formal Dress
Special Occasion
A gown designed to captivate from every angle, the Juliette formal dress sculpts the body in lavish flocked mesh before cascading into dramatic tiered ruffles. With its sweetheart neckline and mermaid silhouette, it’s pure elegance—made for grand entrances and unforgettable nights.
Fit & Features
- Flocked velvet pattern, mesh-lined fabric
- Sweetheart neckline
- Adjustable spaghetti straps
- Back zipper closure
- Contoured mermaid silhouette
- Tiered ruffle floor-length hem
- Runs true to size
Where to Wear:
Weddings, galas, red carpet events, formal celebrations, fashion-forward events, engagement parties, rehearsal dinners, nights at the opera or theatre
Style Number/Barcode: 05002-000439
Category Name: Mermaid Dresses
Price: $74.90
Availability: Out of Stock
Product Badge:- Ships Free
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Layla Floral Cold Shoulder Mermaid Formal Dress
Special Occasion
Beautifully constructed from a stretch mesh that scuplts and shapes. The Layla floral formal dress offers an elegant cold shoulder neckline, high front slit for effortless movement, and a curve-hugging mermaid silhouette that turns heads.
Fit & Features
- Floral print, mesh fabric, lined
- Cold shoulder neckline, padded bra cups
- Back zipper and hook-eye closure
- High front slit
- Mermaid silhouette
- Floor-length hem
- Runs true to size
Where to Wear:
Weddings, garden parties, shower celebrations, vacation, date night, dinner parties, milestone celebrations, birthdays
Style Number/Barcode: 05002-000108
Category Name: Mermaid Dresses
Price: $19.97 $69.90
On Sale: Yes
Availability: Out of Stock
Product Badge:- Ships Free
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Juliette Velvet Corset Rhinestone Formal Dress
Special Occasion
Sophistication meets sparkle in the Juliette formal dress. Designed in plush velvet that contours every curve, this strapless gown features a rhinestone-trimmed sweetheart neckline and corset bodice for sculpted allure. Finished with elegant pleating and a thigh-high slit, it’s made for the kind of night that calls for full-glam confidence.
Fit & Features
- Soft velvet fabric lined with stretch knit
- Strapless sweetheart neckline, rhinestone-embellished gems
- Padded bra cups
- Corset structured bodice, flexible boning, back zipper and hook-eye closure
- High front slit
- Mermaid silhouette, floor-length hem
- Runs true to size
Where to Wear:
Formal galas, red-carpet events, holiday parties, glamorous winter formals, black-tie weddings, engagement dinners, birthday celebrations, fashion-forward soirees, romantic date nights, elegant receptions
Style Number/Barcode: 05002-000453
Category Name: Mermaid Dresses
Price: $89.90
Availability: Out of Stock
Product Badge:- Ships Free
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Renata Strapless Abstract Mermaid Formal Dress
Special Occasion
Romantic yet modern, the Renata strapless mesh gown skims the body with an elegant mermaid silhouette and a bold abstract print that feels like wearable art. Effortless and alluring, it’s a statement piece for evenings that call for something unforgettable.
Fit & Features
- Abstract print, mesh-lined fabric
- Strapless neckline
- Mermaid silhouette
- Floor-length hem
- Runs true to size
Where to Wear:
Weddings, art gallery openings, cocktail soirees, engagement parties, milestone celebrations, birthday events, date nights, holidays
Style Number/Barcode: 05002-000454
Category Name: Mermaid Dresses
Price: $29.97 $59.90
On Sale: Yes
Availability: Out of Stock
Product Badge:- Sale
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Raelyn Mesh Long Sleeve Mermaid Formal Dress
Special Occasion
Make heads turn in the showstopping Raelyn formal dress designed in a jaw-dropping mermaid silhouette that serves major sheerness. With long sleeves, a mock neck, and a floor-length hem, this dress knows how to stun.
Fit & Features
- Semi-lined sheer mesh fabric with stretch
- Mock neck with back button closures
- Fitted long sleeves
- Open back
- Mermaid silhouette
- Floor-length hem with high front slit
- Runs true to size
Where to Wear:
Black-tie gala, weddings, glam industry events, upscale date night, cocktail reception, red-carpet event, awards ceremony
Style Number/Barcode: 05002-000461
Category Name: Mermaid Dresses
Price: $59.90
Availability: Out of Stock
Product Badge:- Ships Free
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Haley Open Back Sash Mermaid Formal Dress
Special Occasion
The Haley formal dress was made for the spotlight moment—the kind where you glide across the room and every detail shimmers in motion. This floor-length mermaid gown features a plunging V-neckline, delicate adjustable straps, and an open back draped with an elegant sash that trails behind you.
Fit & Features
- Smooth knit-lined fabric, subtle sheen
- V-neckline
- Adjustable spaghetti straps
- Open back with attached floor-length sash
- Mermaid silhouette
- Floor-length hem
- Runs true to size
Where to Wear:
Black-tie weddings, galas, award dinners, destination celebrations, engagement parties, rehearsal dinners, charity balls, fancy date nights, formal events
Style Number/Barcode: 05002-000462
Category Name: Mermaid Dresses
Price: $79.90
Availability: In Stock
Available Color: HUNTER, WINE
Available Size: XS, S, M, L, XL
Product Badge:- Ships Free
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Kathy Velvet Flocked Mermaid Formal Dress
Special Occasion
Romantic and striking, the Kathy velvet flocked gown features a strapless sweetheart neckline, curve-contouring mermaid fit, and sultry front slit. The open tie-back detail adds a modern edge, making it a flawless choice for formal evenings.
Fit & Features
- Velvet flocked pattern, knit-lined fabric with stretch
- Strapless sweetheart neckline, padded bra cups, twist design
- Tie-back design, lower zipper and hook-eye closure
- Mermaid silhouette
- Floor-length hem
- Runs true to size
Where to Wear:
Black-tie weddings, galas, charity balls, red-carpet events, formal soirees, milestone celebrations, big birthday events, upscale dinner parties
Style Number/Barcode: 05002-000465
Category Name: Mermaid Dresses
Price: $69.90
Availability: Out of Stock
Product Badge:- Ships Free
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Grace Floral Open Back Mermaid Formal Dress
Special Occasion
Romantic by design, The Grace formal dress is made for the moments that linger. With a draped cowl sweetheart neckline and an open back that catches the light just right, this floral garden print gown flows into a mermaid silhouette that feels equal parts timeless and captivating.
Fit & Features
- Garden floral print, lined stretch knit fabric
- Cowl sweetheart neckline, padded bra cups
- Wide shoulder straps
- Open back with clasp closure
- Mermaid silhouette
- Floor-length hem
- Runs true to size
Where to Wear:
Weddings, black tie galas, formal celebrations, receptions, bridal events, destination soirees, anniversaries, dinner parties, dressed-up date nights
Style Number/Barcode: 05002-000463
Category Name: Mermaid Dresses
Price: $19.97 $79.90
On Sale: Yes
Availability: Out of Stock
Product Badge:- Ships Free
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Christine Satin Halter Mermaid Formal Dress
Special Occasion
Sleek, sculpted, and made for that gliding-into-the-room moment, the Christine formal dress drapes in smooth knit that flatters from every angle. The satin halter square neckline adds a refined, modern touch, while the mermaid floor-length silhouette brings a polished, elegant finish worthy of any unforgettable night.
Fit & Features
- Smooth knit fabric with stretchy lining
- Satin square halter neckline with tie closure
- Back zipper and hook-eye closure
- Mermaid silhouette
- Floor-length hem
- Runs true to size
Where to Wear:
Weddings, black tie galas, hotel or ballroom soirees, anniversary dinners, holiday celebrations, upscale cocktail parties, destination events, rehearsal dinners, engagement parties, red-carpet occasions
Style Number/Barcode: 05002-000464
Category Name: Mermaid Dresses
Price: $19.97 $69.90
On Sale: Yes
Availability: Out of Stock
Product Badge:- Sale
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Miriam Floral Velvet Mermaid Formal Dress
Special Occasion
Romance meets drama in the Miriam velvet mermaid gown, designed with a plunging V-neckline and a striking crisscross open back. The floor-length silhouette glides with sophistication, making it a timeless choice for every elegant occasion.
Fit & Features
- Floral pattern, plush velvet fabric lined with stretchy knit
- V-neckline
- Wide shoulder straps
- Crisscross open back, zipper and hook-eye closure
- Mermaid silhouette
- Floor-length hem
- Runs true to size
Where to Wear:
Black-tie weddings, galas, holiday soirees, evening receptions, engagement parties, formal celebrations, anniversaries, fancy cocktail parties
Style Number/Barcode: 05002-000473
Category Name: Mermaid Dresses
Price: $74.90
Availability: Out of Stock
Product Badge:- Ships Free
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Clarence Lace-Up Mermaid Formal Dress
Special Occasion
Designed to captivate from every angle, the Clarence formal dress brings luxe texture and sculpted elegance to the spotlight. Crafted from flocked velvet mesh, its plunging neckline and lace-up back strike the perfect balance between timeless sophistication and now-moment allure.
Fit & Features
- Flocked velvet, mesh-lined stretch fabric
- V-neckline, padded br acups
- Spaghetti straps
- Open lace-up back, lower zipper and hook-eye closure
- Mermaid silhouette
- Floor-length hem
- Runs true to size
Where to Wear:
Formal wedding, black-tie event, holiday gala or party, anniversary dinner, red-carpet occasion, cocktail soiree, engagement party, rehearsal dinners
Style Number/Barcode: 05002-000474
Category Name: Mermaid Dresses
Price: $69.90
Availability: Out of Stock
Product Badge:- Ships Free
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Candace Velvet Halter Ruffle Formal Dress
Special Occasion
Bold, sultry, and endlessly elegant—the Candace formal dress was made for the spotlight. Crafted from floral burnout velvet, this halter gown features a deep plunging neckline and a ruched bodice that sculpts your silhouette. A cascading ruffle draws the eye down the front slit, creating a moment of movement and allure with every step.
Fit & Features
- Velvet burnout fabric
- Halter plunge neckline
- Front ruffled trim and slit
- Mermaid silhouette
- Floor-length hem
- Runs true to size
Where to Wear:
Galas, weddings, holiday soirees, formal dinners, engagement parties, milestone birthday events, red-carpet events
Style Number/Barcode: 05002-000481
Category Name: Mermaid Dresses
Price: $29.97 $69.90
On Sale: Yes
Availability: Out of Stock
Product Badge:- Ships Free
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Sherry Satin Mermaid Formal Dress
Special Occasion
Sleek, sculpted, and undeniably stunning—the Sharon formal gown was made for your grand entrance moment. The smooth satin fabric drapes into a flattering mermaid fit, while the strapless neckline shapes a timeless, red-carpet-worthy silhouette.
Fit & Features
- Stretch satin fabric, bust knit lining
- Strapless neckline, notch accent, non-slip grip lining
- Back zipper and hook-eye closure
- Mermaid silhouette
- Floor-length hem
- Runs true to size
Where to Wear:
Formal weddings, black-tie galas, engagement parties, red-carpet events, elegant receptions, upscale celebrations, anniversaries
Style Number/Barcode: 05002-000485
Category Name: Mermaid Dresses
Price: $69.90
Availability: Out of Stock
Product Badge:- Ships Free
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Penny Velvet Long Sleeve Mermaid Formal Dress
Special Occasion
Sultry sophistication, reimagined. The Penny formal gown stuns with its sculpted sweetheart neckline and sheer mesh long sleeves, balancing allure and elegance. A daring cutout back and high front slit elevate its velvet mermaid silhouette—made for evenings that deserve every double take.
Fit & Features
- Luxe velvet-lined fabric
- Sweetheart neckline, padded bra cups
- Sheer mesh fitted long sleeves
- Cutout back design, zipper and hook-eye closure
- High front slit
- Mermaid silhouette
- Floor-length hem
- Runs true to size
Where to Wear:
Formal weddings, black-tie receptions, holiday galas, red-carpet events, luxe date nights, anniversaries, formal celebrations, evening soirees, charity balls
Style Number/Barcode: 05002-000491
Category Name: Mermaid Dresses
Price: $19.97 $69.90
On Sale: Yes
Availability: Out of Stock
Product Badge:- Sale
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Amaya Ruched Mermaid Formal Dress
Special Occasion
Radiant and refined, the Amaya foil gown captivates with a sculpted V-wire neckline, ruched bodice, and curve-hugging mermaid silhouette. The floor-length hem creates a dramatic finish made for luminous entrances.
Fit & Features
- Foil fabric lined with stretch knit
- V-wired neckline
- Adjustable spaghetti straps
- Back zipper and hook-eye closure
- Side ruched seams
- Mermaid silhouette, floor-length hem
- Runs true to size
Where to Wear:
Black-tie weddings, formal galas, red-carpet events, formal dances, holiday soirees, anniversaries, milestone celebrations
Style Number/Barcode: 05002-000493
Category Name: Mermaid Dresses
Price: $79.90
Availability: In Stock
Available Color: WINE
Available Size: XS, S, M
Product Badge:- Ships Free
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Lilliane One-Shoulder Mermaid Formal Dress
Special Occasion
Modern drama meets sleek sophistication in the Lilliane one-shoulder mermaid gown, designed with a bold side cutout that sculpts the waist and a floor-length hem that glides effortlessly. The silhouette is equal parts daring and timeless.
Fit & Features
- Smooth knit-lined fabric, moderate stretch
- One-shoulder neckline with cutout
- Mermaid silhouette
- Floor-length hem
- Runs true to size
Where to Wear:
Black-tie gala, weddings, night at the theatre, red-carpet premiere, holiday formal parties, rehearsal dinners, engagement parties, milestone celebrations
Style Number/Barcode: 05002-000495
Category Name: Mermaid Dresses
Price: $64.90
Availability: Out of Stock
Product Badge:- Ships Free