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Long Party Dresses

The elegant appeal of the maxi dress is updated with after-dark drama to create this modern edit of long party dresses. Below, you’ll find a series of elongated silhouettes that are crafted from premium textiles that appear in a palette of party-ready tones — think bold brights, refined neutrals, sleek monochromatics, considered pastels, and zesty citrus. With a series of necklines (scoop, bandeau, asymmetric, square, straight, and halter), sleeves (such as puffed, angel, draped, cape, and cap), and skirts (column, A-line, slip, slanted, and tiered), our long party dresses for women are shaped from a series of compositions. Think sculpting jersey, jacquard, and the four-way support of Compact Stretch (creating a bespoke fit with four-way stretch), and flowing styles that are cut from satin, silk, lace, jersey, chiffon, organza, and taffeta. Our maxi party dresses are enlivened with artful touches that will incite an imaginative essence in your late-night ensemble. Think intricate embroidery, dynamic tassels, scintillating sequins, gathered rosettes, tactile feather trims, ornate lace panels, scalloped hems, and appliqué details aplenty. Shop long dresses for a party below.

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favourite
Butterfly Viscose Satin Maxi Dress
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KarenMillen

Butterfly Viscose Satin Maxi Dress

  • Detail: All Over Print
  • Fabric: Viscose
  • Sleeve length: Sleeveless
£37.00 £149.00
favourite
Cutwork Beaded Embroidered Woven Maxi Dress
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KarenMillen

Cutwork Beaded Embroidered Woven Maxi Dress

  • Detail: Embroidered
  • Fabric: Woven
  • Neckline: Round Neck
£129.00 £369.00
favourite
Abstract Print Organza Collared Maxi Dress
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KarenMillen

Abstract Print Organza Collared Maxi Dress

  • Design: All Over Print
  • Detail: All Over Print
  • Sleeve length: Sleeveless
£95.40 £159.00
favourite
Romantic Floral Print Prom Woven Maxi Dress
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KarenMillen

Romantic Floral Print Prom Woven Maxi Dress

  • Fabric: Woven
  • Length: Maxi
  • Style: Maxi Dress
£87.00 £249.00
favourite
Plus Size Cotton Poplin Pleated Maxi Dress
Plus
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KarenMillen

Plus Size Cotton Poplin Pleated Maxi Dress

  • Length: Maxi
  • Sleeve length: Sleeveless
  • Style: Maxi Dress
£63.00 £179.00
favourite
Pleated Tiered Maxi Dress
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KarenMillen

Pleated Tiered Maxi Dress

  • Fabric: Woven
  • Neckline: Bandeau
  • Style: Maxi Dress
£159.20 £199.00
blue color purple color
favourite
Cotton Ponte Jersey Ruffle Hem Maxi Dress
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KarenMillen

Cotton Ponte Jersey Ruffle Hem Maxi Dress

  • Fabric: Jersey
  • Sleeve length: Strappy
  • Style: Maxi Dress
£95.20 £119.00
black color red color
favourite
Satin Applique Woven Maxi Dress
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KarenMillen

Satin Applique Woven Maxi Dress

  • Design: Floral
  • Fabric: Polyester
  • Sleeve length: Strappy
£57.00 £229.00
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Pleated Slub Organdie Ombre Woven Maxi Dress
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KarenMillen

Pleated Slub Organdie Ombre Woven Maxi Dress

  • Detail: Plain
  • Fabric: Woven
  • Style: Maxi Dress
£119.40 £199.00
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Petite Crystal Embellished Cady Woven Cape Maxi Dress
Petite
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KarenMillen

Petite Crystal Embellished Cady Woven Cape Maxi Dress

  • Length: Maxi
  • Neckline: Crew
  • Sleeve length: Long Sleeve
£149.00 £599.00
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Blurred Orchid Twill Collared Maxi Dress
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KarenMillen

Blurred Orchid Twill Collared Maxi Dress

  • Design: All Over Print
  • Neckline: Collared
  • Style: Maxi Dress
£56.00 £159.00
favourite
Petite Compact Stretch Viscose Maxi Dress
Petite
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KarenMillen

Petite Compact Stretch Viscose Maxi Dress

  • Design: Plain
  • Detail: Plain
  • Sleeve length: Sleeveless
£91.00 £259.00
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Premium Stretch Crepe Jersey Maxi Dress
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KarenMillen

Premium Stretch Crepe Jersey Maxi Dress

  • Length: Maxi
  • SleeveLength: Sleeveless
  • Style: Maxi Dress
£42.00 £169.00
raspberry color mango color
favourite
Spot Print Viscose Georgette Cape Sleeve Ruffle Woven Maxi Dress
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KarenMillen

Spot Print Viscose Georgette Cape Sleeve Ruffle Woven Maxi Dress

  • Detail: All Over Print
  • Fabric: Woven
  • Style: Maxi Dress
£131.40 £219.00
favourite
Pleated Organdie Woven Maxi Dress
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KarenMillen

Pleated Organdie Woven Maxi Dress

  • Design: Plain
  • Length: Maxi
  • Sleeve length: Strappy
£119.40 £199.00
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Quilted Applique Organdie Angel Sleeve Woven Maxi Dress
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KarenMillen

Quilted Applique Organdie Angel Sleeve Woven Maxi Dress

  • Design: Embroidered
  • Detail: Applique
  • Neckline: Crew
£140.00 £399.00
favourite
Spot Drape Detail Viscose Woven Maxi Dress
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KarenMillen

Spot Drape Detail Viscose Woven Maxi Dress

  • Detail: All Over Print
  • Length: Maxi
  • Style: Maxi Dress
£64.00 £159.00
favourite
Floral Heavy Satin Panelled Fringed Woven Strappy Maxi Dress
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KarenMillen

Floral Heavy Satin Panelled Fringed Woven Strappy Maxi Dress

  • Length: Maxi
  • Occasion: Occasion
  • SleeveLength: Strappy
£60.00 £299.00
favourite
Petite Crystal Embellished Satin Wrap Maxi Dress
Petite
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KarenMillen

Petite Crystal Embellished Satin Wrap Maxi Dress

  • Length: Maxi
  • Sleeve length: Long Sleeve
  • Style: Maxi Dress
£57.00 £229.00
favourite
Organdie And Lace Applique Woven Strappy Maxi Dress
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KarenMillen

Organdie And Lace Applique Woven Strappy Maxi Dress

  • Length: Maxi
  • Occasion: Occasion
  • SleeveLength: Strappy
£84.00 £279.00
favourite
Petite Photographic Floral Organza Scarf Detail Woven Maxi Dress
Petite
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KarenMillen

Petite Photographic Floral Organza Scarf Detail Woven Maxi Dress

  • Design: Floral
  • Neckline: Round Neck
  • Sleeve length: Sleeveless
£149.00
favourite
Polka Dot Crinkle Cold Shoulder Georgette Woven Maxi Dress
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KarenMillen

Polka Dot Crinkle Cold Shoulder Georgette Woven Maxi Dress

  • Design: Polka dot
  • Detail: Plain
  • Neckline: Cold Shoulder
£63.00 £179.00
favourite
Forever Twill Collared Maxi Dress
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KarenMillen

Forever Twill Collared Maxi Dress

  • Length: Maxi
  • Neckline: Collared
  • Sleeve length: Sleeveless
£127.20 £159.00
cobalt color red color jade color navy color mint color lemon color black color
favourite
Petite Lilly Print Twill Collared Maxi Dress
Petite
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KarenMillen

Petite Lilly Print Twill Collared Maxi Dress

  • Fabric: Woven
  • Sleeve length: Sleeveless
  • Style: Maxi Dress
£159.00
favourite
Hotfix Studded Long Sleeve Shirt Woven Maxi Dress
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KarenMillen

Hotfix Studded Long Sleeve Shirt Woven Maxi Dress

  • Design: Plain
  • Length: Maxi
  • Neckline: Collared
£66.00 £189.00
ivory color black color
favourite
Chain Print Hammered Satin Deep V Strappy Woven Maxi Dress
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KarenMillen

Chain Print Hammered Satin Deep V Strappy Woven Maxi Dress

  • Design: Chain
  • Detail: Chain
  • Sleeve length: Strappy
£49.00 £139.00
favourite
Satin Viscose Multi Print One Shoulder Maxi Dress
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KarenMillen

Satin Viscose Multi Print One Shoulder Maxi Dress

  • Design: All Over Print
  • Fabric: Woven
  • Length: Maxi
£76.00 £189.00
favourite
Soft Tailored Halter Neck Open Back Maxi Dress
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KarenMillen

Soft Tailored Halter Neck Open Back Maxi Dress

  • Design: Plain
  • Detail: Plain
  • Fabric: Polyester
£63.00 £179.00
pale-blue color magenta color
favourite
Pleated Skirt Detail Belted Maxi Dress
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KarenMillen

Pleated Skirt Detail Belted Maxi Dress

  • Detail: Plain
  • Fabric: Woven
  • Neckline: Halterneck
£63.00 £179.00
favourite
Tall Quilted Applique Organdie Angel Sleeve Woven Maxi Dress
Tall
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KarenMillen

Tall Quilted Applique Organdie Angel Sleeve Woven Maxi Dress

  • Design: Embroidered
  • Length: Maxi
  • Style: Maxi Dress
£140.00 £399.00
favourite
Viscose Georgette Floral Strappy Woven Maxi Dress
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KarenMillen

Viscose Georgette Floral Strappy Woven Maxi Dress

  • Design: Floral
  • Detail: Floral
  • Neckline: Strappy
£101.40 £169.00
favourite
Amelia Graham Printed Cady One Shoulder Maxi Dress
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KarenMillen

Amelia Graham Printed Cady One Shoulder Maxi Dress

  • Detail: Asymmetric
  • Fabric: Viscose
  • Style: Maxi Dress
£42.00 £169.00
favourite
Satin Viscose Printed Cowl Neck Maxi Dress
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KarenMillen

Satin Viscose Printed Cowl Neck Maxi Dress

  • Fabric: Woven
  • Neckline: Cowl
  • Sleeve length: Sleeveless
£80.00 £229.00
favourite
Viscose Satin Crepe Woven Maxi Dress
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KarenMillen

Viscose Satin Crepe Woven Maxi Dress

  • Detail: Plain
  • Fabric: Viscose
  • Sleeve length: Short Sleeve
£229.00
blue color ivory color sage color pale-blue color
favourite
Petite Viscose Satin Floral Print Asymmetric Shoulder Maxi Dress
Petite
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KarenMillen

Petite Viscose Satin Floral Print Asymmetric Shoulder Maxi Dress

  • Fabric: Woven
  • Neckline: One Shoulder
  • Style: Maxi Dress
£107.40 £179.00
favourite
Floral Print Frill Detail Viscose Maxi Dress
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KarenMillen

Floral Print Frill Detail Viscose Maxi Dress

  • Design: All Over Print
  • Fabric: Woven
  • Sleeve length: Strappy
£299.00
favourite
Square Neck Tailored Full Skirted Maxi Dress
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KarenMillen

Square Neck Tailored Full Skirted Maxi Dress

  • Detail: Plain
  • Fabric: Polyester
  • Length: Maxi
£119.40 £199.00
orange color turquoise color red color merlot color cobalt color
favourite
Jersey Crepe Ruched Long Sleeve Maxi Dress
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KarenMillen

Jersey Crepe Ruched Long Sleeve Maxi Dress

  • Length: Maxi
  • Sleeve length: Long Sleeve
  • Style: maxidress
£35.00 £99.00
teal color mango color
favourite
Petite Viscose Georgette Butterfly Print Rosette Halterneck Maxi Dress
Petite
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KarenMillen

Petite Viscose Georgette Butterfly Print Rosette Halterneck Maxi Dress

  • Design: Butterfly
  • Length: Maxi
  • Sleeve length: Sleeveless
£119.40 £199.00
favourite
Petite Abstract Print Organza Collared Maxi Dress
Petite
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KarenMillen

Petite Abstract Print Organza Collared Maxi Dress

  • Detail: All Over Print
  • Neckline: Collared
  • Style: Maxi Dress
£95.40 £159.00
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