Mermaid Dresses

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.

  • Kim Rhinestone Leopard Mermaid Formal Dress

    Special Occasion

    Designed to command attention the moment you arrive, the Kim rhinestone leopard gown brings bold glamour to any formal setting. The mermaid floor-length silhouette is finished with a striking cutout back that feels confident, sculpted, and unforgettable.

    Fit & Features

    • Rhinestone embellished mesh-lined fabric, leopard pattern
    • Plunge V-neckline, wide shoulder straps
    • Side zipper and hook-eye closure
    • Cutout back detail
    • Mermaid floor-length silhouette
    • Runs true to size

     

    Where to Wear:

    Prom, black-tie galas, weddings, red-carpet occasions, formal birthday celebrations, upscale receptions, fancy art gallery openings, award show dinners, special date nights

    Style Number/Barcode: 05002-001039

    Category Name: Mermaid Dresses

    Price: $159.90

    Availability: Out of Stock

    Product Badge:
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  • Manisha Floral Mermaid Formal Dress

    Special Occasion

    Elegant and softly dramatic, the Manisha sequin mermaid gown is designed to leave a lasting impression from every angle. A floral garden pattern and sculpted cutout back bring romance and refinement together for moments that call for polished confidence.

    Fit & Features

    • Sequin-lined fabric with a floral garden pattern
    • V-neck, padded bra cups, adjustable spaghetti straps
    • Fitted mermaid silhouette
    • Cutout back detai, hook-eye strap, hidden zipper with hook-eye closure
    • Floor length hem
    • Runs true to size

     

    Where to Wear:

    Prom, bridal celebrations, spring galas, garden parties, formal milestone celebrations, fancy events

    Style Number/Barcode: 05002-001051

    Category Name: Mermaid Dresses

    Price: $119.90

    Availability: Out of Stock

    Product Badge:
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  • Desiree Sequin Bead Drape Formal Dress

    Special Occasion

    When the invitation calls for after-dark glamour, the Desiree gown answers with unapologetic shine. Designed in all-over sequin with a sculpted mermaid silhouette, plunging V-neckline, and a beaded back drape that sways with every step, it’s a polished showpiece made for unforgettable entrances.

    Fit & Features

    • Sequin-embellished pattern, mesh-lined fabric
    • V-neckline, adjustable spaghetti straps, padded bra cups
    • Side zipper and hook-eye closure
    • Beaded back drape
    • Mermaid floor-length silhouette
    • Runs true to size

     

    Where to Wear:

    Prom, black tie weddings, galas, red carpet award ceremonies, big birthday events, milestone birthday dinners, fancy celebrations

    Style Number/Barcode: 05002-001065

    Category Name: Mermaid Dresses

    Price: $99.90

    Availability: Out of Stock

    Product Badge:
    • Ships Free
  • Rosaline Sequin Open Back Formal Dress

    Special Occasion

    When the spotlight hits, the Rosaline dress does the rest. Designed with a geometric sequin pattern, a sculpted mermaid silhouette, and a daring front slit, this gown delivers high-impact shine with a sleek, confident edge that feels made for a grand entrance.

    Fit & Features

    • Allover geometric sequin embellishment, mesh-lined fabric
    • V-neckline with tank-style straps, padded bra cups
    • Criss-cross open back, hidden zipper with hook-eye closure
    • Fitted mermaid silhouette
    • High front slit
    • Floor length hem
    • Runs true to size

     

    Where to Wear:

    Prom, black tie gala, wedding, red carpet awards, milestone birthday party, formal celebrations, anniversaries

    Style Number/Barcode: 05002-001053

    Category Name: Mermaid Dresses

    Price: $19.97 $99.90

    On Sale: Yes

    Availability: Out of Stock

    Product Badge:
    • Sale
  • Hallie Sequin Floral Slit Formal Dress

    Special Occasion

    Softly romantic with just the right touch of sparkle, the Hallie dress feels like it was made for golden hour entrances and champagne toasts. Designed in floral sequins with a sculpted mermaid silhouette, it features a plunging neckline, sheer cutout detail, and rhinestone boning that catches the light with every step.

    Fit & Features

    • Floral sequin-embellished fabric, smooth knit lining
    • V-neckline with rhinestone trim and sheer mesh inserts
    • Spaghetti straps, padded bra cups
    • Strappy lace-up back, rhinestone trim
    • Back zipper and hook-eye closure
    • High side slit, mermaid floor-length hem
    • Runs true to size

     

    Where to Wear:

    Prom, bridal celebrations, black tie galas, garden parties, engagement parties, fancy birthdays, formal soirees

    Style Number/Barcode: 05002-001064

    Category Name: Mermaid Dresses

    Price: $19.97 $129.90

    On Sale: Yes

    Availability: Out of Stock

    Product Badge:
    • Ships Free
  • Gretchen Floral Lace Formal Dress

    Special Occasion

    Romantic with just the right hint of allure, the Gretchen floral lace mermaid gown is designed for moments that feel straight out of a garden soirée. The lace-up, open-back adds an unexpected edge, balancing soft texture with a silhouette that moves effortlessly with you from ceremony to celebration.

    Fit & Features

    • Floral lace fabric, knit lining
    • V-neckline, padded bra cups, spaghetti straps
    • Lace-up open back
    • Mermaid floor-length silhouette
    • Runs true to size

     

    Where to Wear:

    Prom, bridal celebrations, fancy brunches, garden parties, celebrations

    Style Number/Barcode: 05002-001073

    Category Name: Mermaid Dresses

    Price: $69.90

    Availability: In Stock

    Available Color: PINK

    Available Size: XS, S, M, L

  • Charlotte Glitter Mermaid Formal Dress

    Special Occasion

    Effortlessly refined with just the right hint of allure, the Charlotte glitter knit mermaid gown is made for evenings that feel elevated and unforgettable. A plunging V-neck, ruched detailing, and a cross strap open back shape a sleek silhouette that moves beautifully from ceremony to celebration.

    Fit & Features

    • Glitter knit fabric lined with stretchy knit
    • Plunge V-neckline
    • Wide shoulder straps create the cross-open back detail
    • Ruched mermaid silhouette
    • Floor-length hemline
    • Runs true to size

     

    Where to Wear:

    Weddings, bridal celebrations, rehearsal dinners, engagement parties, black tie galas, upscale city soirees, formal birthday dinners, anniversaries, special date nights, honeymoons

    Style Number/Barcode: 05002-001080

    Category Name: Mermaid Dresses

    Price: $79.90

    Availability: Out of Stock

    Product Badge:
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  • Meara Beaded Sequin Mermaid Formal Dress

    Special Occasion

    Refined with a soft after-hours glow, The Meara is designed to captivate from first glance to final dance. Crafted in beaded sequin mesh fabric, this mermaid floor-length silhouette features a fluid cowl neckline and delicate spaghetti straps that frame a lace-up open back.

    Fit & Features

    • Beaded sequin mesh fabric with smooth knit lining
    • Cowl neckline
    • Spaghetti straps
    • Lace-up open back
    • Mermaid floor-length hem
    • Runs true to size

     

    Where to Wear:

    Weddings, black tie galas, upscale cocktail receptions, formal soirees, destination weddings, evening resort events, special occasions, anniversaries, formal dances

    Style Number/Barcode: 05002-001083

    Category Name: Mermaid Dresses

    Price: $154.90

    Availability: Out of Stock

    Product Badge:
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  • Camren Beaded Floral Lace-Up Mermaid Dress

    Special Occasion

    Striking yet softly romantic, the Camren dress is designed for entrances that feel both graceful and unforgettable. Floral-printed beaded fabric, a sculpting mermaid silhouette, and a delicate keyhole detail come together for a look that feels polished from every angle.

    Fit & Features

    • Sheer floral printed mesh fabric with full-length knit lining, high stretch
    • All-over beaded and sequin embroidery
    • Sleeveless plunging sweetheart neckline, padded bust, keyhole cutout with bar strap detail
    • Spaghetti straps, open lace-up back design for an adjustable, custom fit
    • Lower back zipper with hook-eye closure
    • Floor-length form-hugging mermaid silhouette
    • Runs true to size

     

    Where to Wear:

    Formal dances, galas, garden parties, bridal celebrations, fashion-forward events, vacations, destination celebrations, birthday dinners, and sunset cocktail soirees.

    Style Number/Barcode: 05002-001088

    Category Name: Mermaid Dresses

    Price: $19.97 $169.90

    On Sale: Yes

    Availability: Out of Stock

    Product Badge:
    • Ships Free
  • Sonia Mesh Bead Cutout Slit Formal Dress

    Special Occasion 

    The Sonia gown is designed for the kind of entrance that turns heads before you even say hello. This mesh mermaid dress features tank straps, a sculpted silhouette, and a dramatic open strappy back, while the front slit adds just the right amount of movement for every step across the room.

    Fit & Features

    • Sculpting mesh fabric with beaded embellishments, lined
    • Sweetheart neckline, tank shoulder straps
    • Mermaid silhouette
    • Open strappy back with adjustable closure, lower zipper and hook-eye closure
    • High front slit
    • Runs true to size

     

    Where to Wear:

    Prom, weddings, galas, formal celebrations, red carpet events, engagement parties, rehearsal dinners, cocktail soirees

    Style Number/Barcode: 05002-001085

    Category Name: Mermaid Dresses

    Price: $159.90

    Availability: Out of Stock

    Product Badge:
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  • Araminta Satin Corset Formal Dress

    Special Occasion

    For evenings that call for a little drama and a flawless silhouette, the Araminta gown delivers in every step. Crafted from satin with an applique corset bodice, lace-up back, and sculpted mermaid silhouette, this gown is the definition of polished confidence with just the right amount of allure.

    Fit & Features

    • Stretch satin fabric lined with knit
    • Sweetheart neckline, spaghetti straps, padded bra cups
    • Applique corset bodice, flexible boning, lace-up back
    • Back zipper and hook-eye closure
    • Hip-hugging mermaid silhouette
    • Floor-length hem
    • Runs true to size

     

    Where to Wear:

    Prom, black tie weddings, balls, galas, award ceremonies, pageant events, big birthday events, formal milestone celebrations, red-carpet events

    Style Number/Barcode: 05002-001092

    Category Name: Mermaid Dresses

    Price: $129.90

    Availability: Out of Stock

    Product Badge:
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  • Fable Rose Floral Mermaid Formal Dress

    Special Occasion

    Romantic and quietly dramatic, the Fable mermaid gown feels like it was made for candlelit moments and unforgettable entrances. A softly draped cowl, halter neckline, and open back with a ruched seam highlight the rose floral print, creating a silhouette that moves with effortless elegance.

    Fit & Features

    • Rose floral print, mesh-lined fabric with stretch
    • Cowl neckline with halter straps
    • Open back design
    • Ruched skirt detailing
    • Fitted waist and hips
    • Mermaid silhouette
    • Floor-length hem

     

    Where to Wear:

    Weddings, destination celebrations, candlelit receptions, formal anniversary celebrations, vow renewals, black tie dinners

    Style Number/Barcode: 05002-001112

    Category Name: Mermaid Dresses

    Price: $79.90

    Availability: In Stock

    Available Color: RED

    Available Size: XS, S, M

    Product Badge:
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  • Olivia Beaded Floral Mermaid Formal Dress

    Special Occasion

    Plucked fresh from the garden, the Olivia beaded gown is made for elegant moments that feel beautifully elevated. A strapless neckline, garden floral pattern, and a sculpted mermaid floor-length hem come together with a sleek bar back detail for a look that feels polished from every angle.

    Fit & Features

    • Garden floral pattern with intricate beaded detailing
    • Strapless neckline 
    • Bar back design
    • Mermaid silhouette with a floor-length hem
    • Runs true to size

     

    Where to Wear:

    Outdoor and indoor weddings, black tie receptions, spring galas, formal school dances, destination celebrations, engagement parties, rehearsal dinners, bridal celebrations, milestone events, baby showers

    Style Number/Barcode: 05002-001097

    Category Name: Mermaid Dresses

    Price: $19.97 $169.90

    On Sale: Yes

    Availability: Out of Stock

    Product Badge:
    • Sale
  • Jenna Floral Bead Mermaid Formal Dress

    Special Occasion

    Softly romantic with a refined edge, the Jenna floral sequin beaded gown is made for moments that feel truly special. A sleek strapless neckline flows into a mermaid silhouette, while the cutout back adds an unexpected finish that feels polished and unforgettable.

    Fit & Features

    • Floral pattern, delicate beading, mesh lined knit fabric
    • Strapless neckline, padded bra cups, non-slip grip lining
    • Cutout back with clasp closure strap
    • Mermaid floor-length silhouette
    • Runs true to size

     

    Where to Wear:

    Prom, weddings, bridal celebrations, fancy baby showers, engagement parties, garden parties, gala events, formal celebrations, rehearsal dinners, dressy brunches, spring holidays

    Style Number/Barcode: 05002-001096

    Category Name: Mermaid Dresses

    Price: $19.97 $169.90

    On Sale: Yes

    Availability: Out of Stock

    Product Badge:
    • Ships Free
  • Margo Beaded Floral Print Mermaid Dress

    Special Occasion

    Romantic with a refined edge, the Margo beaded mermaid dress is designed to move beautifully through every elegant moment. A floral pattern, plunging V-neck, and low back create a striking silhouette that feels polished, confident, and undeniably memorable.

    Fit & Features

    • Sheer mesh fabric with full-length knit lining, high stretch
    • Floral print toward the bottom of the dress, all-over beaded and sequin embroidery
    • Sleeveless V-neckline, ruched detailing
    • Adjustable spaghetti straps, low back design
    • Hidden side zipper with hook-eye closure
    • Floor-length mermaid silhouette
    • Runs true to size

     

    Where to Wear:

    Prom, bridal celebrations, resort formal soirees, milestone parties, anniversary dinners, birthday events, and special date nights.

    Style Number/Barcode: 05002-001104

    Category Name: Mermaid Dresses

    Price: $169.90

    Availability: In Stock

    Available Color: PINK

    Available Size: XXS, XS, S, M

    Product Badge:
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  • Nicki Beaded Fringe Mermaid Formal Dress

    Special Occasion

    Designed for the kind of entrance that feels quietly iconic, the Nicki beaded mesh mermaid silhouette moves with intention and undeniable polish. A beaded triangle bust with fringe and a high front slit brings just enough drama to a look made for weddings, galas, and unforgettable nights.

    Fit & Features

    • Smooth knit-lined fabric, moderate stretch
    • Beaded triangle bust silhouette with fringe
    • Halter spaghetti strap
    • Back zipper and hook-eye closure
    • Mermaid silhouette with high front slit
    • Floor-length hem
    • Runs true to size

     

    Where to Wear:

    Prom, big birthday events, fashion-forward soirees, upscale cocktail parties, glamorous occasions, red-carpet events

    Style Number/Barcode: 05002-001093

    Category Name: Mermaid Dresses

    Price: $19.97 $99.90

    On Sale: Yes

    Availability: Out of Stock

    Product Badge:
    • Ships Free
  • Elissa Beaded Mermaid Formal Dress

    Special Occasion

    Graceful and refined, the Elissa beaded mermaid gown is designed for moments that call for understated glamour and timeless poise. Delicate beadwork flows into a floral hem pattern, creating a silhouette that feels romantic, polished, and unforgettable from ceremony to soirée.

    Fit & Features

    • Beaded, embellished, mesh-lined fabric
    • Strapless twist sweetheart neckline, padded bra cups
    • Back zipper and hook-eye closure
    • Mermaid floor-length hem with floral pattern
    • Runs true to size

     

    Where to Wear:

    Prom, bridal celebrations, black tie galas, milestone celebrations, formal resort destinations, birthday events

    Style Number/Barcode: 05002-001114

    Category Name: Mermaid Dresses

    Price: $19.97 $169.90

    On Sale: Yes

    Availability: Out of Stock

    Product Badge:
    • Ships Free
  • Sera Formal Sequin Beaded Mermaid Dress

    Special Occasion

    An entrance is inevitable in a silhouette like this. The Sera is crafted from intricately beaded mesh in a sculpted mermaid silhouette, finished with a softly draped cowl neckline and striking ruched X back that feels equal parts glamorous and refined

    Fit & Features

    • Beaded mesh-lined fabrication
    • Sequin scroll pattern
    • Sleeveless cowl neckline
    • Hidden side zipper and hook-eye closure
    • Spaghetti straps that cross at back
    • 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: 05002-001110

    Category Name: Mermaid Dresses

    Price: $19.97 $149.90

    On Sale: Yes

    Availability: Out of Stock

    Product Badge:
    • Ships Free
  • Mara Floral Print Beaded Sequin Mermaid Dress

    Special Occasion

    The Mara formal dress pairs a romantic floral print with shimmering beaded sequin embellishment in a sleek mermaid silhouette. The plunging V-neckline and sculpted waist create a striking, curve-skimming look that feels effortlessly glamorous from first entrance to final glance.

    Fit & Features

    • Sheer mesh fabric with full-length knit lining, high stretch
    • Large floral print down the silhouette
    • All-over beaded and clear sequin embroidery
    • Sleeveless V-neckline
    • Thin adjustable shoulder straps, hidden side zipper with hook-eye closure
    • Floor-length mermaid silhouette
    • Runs true to size

     

    Where to Wear:

    Prom, birthday celebrations, engagement parties, bridal showers, rehearsal dinners, formal date nights, and dressed-up dinners.

    Style Number/Barcode: 05002-001106

    Category Name: Mermaid Dresses

    Price: $19.97 $169.90

    On Sale: Yes

    Availability: Out of Stock

    Product Badge:
    • Ships Free
  • Darline Lace Mermaid Formal Dress

    Special Occasion

    Softly sculpted with a hint of romance, the Darline lace mermaid gown moves with an effortless, floaty feel that catches attention from every angle. The halter sweetheart neckline, sheer detailing, and cascading ruffle slit create a look that feels equal parts delicate and daring.

    Fit & Features

    • Lace fabric with sheer paneling throughout
    • Halter sweetheart neckline, ruched center, padded bra cups
    • Open back with halter tie closure
    • Mermaid silhouette with high slit and ruffle trim
    • Floor-length hem
    • Runs true to size

     

    Where to Wear:

    Prom, weddings, galas, fancy showers, anniversaries, birthdays, vacations, and honeymoons.

    Style Number/Barcode: 05002-001100

    Category Name: Mermaid Dresses

    Price: $79.90

    Availability: In Stock

    Available Color: LIGHT, BLUE, BLACK

    Available Size: XS, S, M, L, XL

    Product Badge:
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  • Soft Radiance Satin Cowl Midi Dress

    This dress is pure quiet luxury—soft satin drape, a fluid cowl neckline, and a silhouette that glides without trying too hard. It’s the kind of dress that turns a simple event into a golden-hour moment at dressy parties, date nights, and celebrations!

    Fit & Features

    • Woven satin fabric with subtle sheen
    • Adjustable spaghetti straps
    • Cowl neckline with soft drape
    • Fitted bodice with contoured seaming
    • Midi-length mermaid silhouette
    • Exposed back zipper closure
    • Runs true to size

    Style Number/Barcode: 05101-000814

    Category Name: Mermaid Dresses

    Price: $9.97 $54.90

    On Sale: Yes

    Availability: Out of Stock

    Product Badge:
    • Ships Free
  • Sweet Flirt Floral Mesh Ruffle Midi Dress

    Soft, flirty, and impossible to ignore—this midi dress gets compliments before you even say hi. The floral mesh hugs just right with a ruffled hem that moves with you from dinner plans to party invites.

    Fit & Features

    • Sheer mesh fabric with full-length knit lining, high stretch
    • Floral print
    • Square neckline
    • Spaghetti straps
    • Body-skimming midi silhouette with flared ruffled hem
    • Runs true to size

    Style Number/Barcode: 05101-000825

    Category Name: Mermaid Dresses

    Price: $9.97 $46.90

    On Sale: Yes

    Availability: Out of Stock

    Product Badge:
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  • Soft Spoken Stunner Floral Mesh Maxi Dress

    Soft, sculpting, and quietly unforgettable. This floral mesh maxi dress hugs in all the right places with a sleek mermaid shape that looks dressed up without trying too hard.

    Fit & Features

    • Sheer mesh fabric with full-length knit lining, high stretch
    • Large floral print throughout
    • Sweetheart neckline, pleated bust
    • Adjustable spaghetti straps
    • Side zipper and hook-eye closure
    • Open back, lower back twisted bar strap design
    • Mermaid silhouette with maxi-length hem
    • Runs true to size

    Style Number/Barcode: 05101-000832

    Category Name: Mermaid Dresses

    Price: $9.97 $54.90

    On Sale: Yes

    Availability: Out of Stock

    Product Badge:
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  • Bold Confidence Floral Print Cowl Neck Maxi Dress

    Soft drape, bold confidence. This floral print maxi dress hugs in all the right places with a plunging cowl neckline that feels effortless and a mermaid silhouette that turns heads.

    Fit & Features

    • Knit fabric with high stretch
    • Large-scale floral print
    • Halter neckline with plunging cowl front, bar strap detail
    • Open back with adjustable tie closures
    • Fitted bodice with mermaid silhouette
    • Maxi-length hem
    • Runs true to size

    Style Number/Barcode: 05101-000830

    Category Name: Mermaid Dresses

    Price: $9.97 $49.90

    On Sale: Yes

    Availability: Out of Stock

    Product Badge:
    • Ships Free