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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
Petite Long Sleeve Jersey Maxi Dress
Petite
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KarenMillen

Petite Long Sleeve Jersey Maxi Dress

  • Detail: Plain
  • Neckline: High Neck
  • Sleeve length: Long Sleeve
£119.00
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Petite Pleated Maxi Dress
Petite
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KarenMillen

Petite Pleated Maxi Dress

  • Design: Plain
  • Detail: Plain
  • Length: Maxi
£143.20 £179.00
favourite
Long Sleeve Jersey Maxi Dress
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KarenMillen

Long Sleeve Jersey Maxi Dress

  • Detail: Plain
  • Fabric: Jersey
  • Neckline: High Neck
£119.00
sage color ivory color red color
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Printed Satin Woven Maxi Dress
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KarenMillen

Printed Satin Woven Maxi Dress

  • Length: Maxi
  • Sleeve length: Long Sleeve
  • Style: Maxi Dress
£36.00 £119.00
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Pleated Maxi Dress
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KarenMillen

Pleated Maxi Dress

  • Detail: Plain
  • Length: Maxi
  • Style: Maxi Dress
£143.20 £179.00
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Crystal Embellished Long Sleeve Woven Maxi Dress
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KarenMillen

Crystal Embellished Long Sleeve Woven Maxi Dress

  • Length: Maxi
  • Sleeve length: Long Sleeve
  • Style: Maxi Dress
£293.00 £489.00
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Premium Embellished Cape Maxi Dress
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KarenMillen

Premium Embellished Cape Maxi Dress

  • Length: Maxi
  • Sleeve length: Long Sleeve
  • Style: Maxi Dress
£328.30 £469.00
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Long Sleeve Ombre Mesh Maxi Dress
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KarenMillen

Long Sleeve Ombre Mesh Maxi Dress

  • Length: Maxi
  • Sleeve length: Long Sleeve
  • Style: Maxi Dress
£48.00 £119.00
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Petite Rosette Drama Maxi Dress
Petite
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KarenMillen

Petite Rosette Drama Maxi Dress

  • Length: Maxi
  • Sleeve length: Short Sleeve
  • Style: Maxi Dress
£129.00 £429.00
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Petite Floral Twill Collared Maxi Dress
Petite
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KarenMillen

Petite Floral Twill Collared Maxi Dress

  • Design: Floral
  • Detail: Collar
  • Style: Maxi Dress
£127.20 £159.00
favourite
Plus Size Long Sleeve Jersey Maxi Dress
Plus
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KarenMillen

Plus Size Long Sleeve Jersey Maxi Dress

  • Fabric: Jersey
  • Length: Maxi
  • Sleeve length: Long Sleeve
£119.00
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Kimono Sleeve Embellished Maxi Dress
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KarenMillen

Kimono Sleeve Embellished Maxi Dress

  • Design: Embroidered
  • Neckline: Crew
  • Style: Maxi Dress
£120.00 £299.00
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Scuba Crepe Plunge Maxi Dress
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KarenMillen

Scuba Crepe Plunge Maxi Dress

  • Length: Maxi
  • SleeveLength: Long Sleeve
  • Style: Maxi Dress
£101.00 £169.00
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Satin Applique Woven Maxi Dress
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KarenMillen

Satin Applique Woven Maxi Dress

  • Length: Maxi
  • Sleeve length: Strappy
  • Style: Maxi Dress
£72.00 £239.00
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Textured Rosette Prom Maxi Dress
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KarenMillen

Textured Rosette Prom Maxi Dress

  • Detail: 3D
  • Neckline: Bandeau
  • Sleeve length: Sleeveless
£159.20 £199.00
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Satin Applique Woven Maxi Dress
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KarenMillen

Satin Applique Woven Maxi Dress

  • Length: Maxi
  • Sleeve length: Strappy
  • Style: Maxi Dress
£69.00 £229.00
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Premium Ruched Jersey Maxi Dress
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KarenMillen

Premium Ruched Jersey Maxi Dress

  • Length: Maxi
  • Sleeve length: Short Sleeve
  • Style: Maxi Dress
£97.30 £139.00
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Jacquard Sleeveless Woven Maxi Dress
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KarenMillen

Jacquard Sleeveless Woven Maxi Dress

  • Length: Maxi
  • Neckline: Round Neck
  • Sleeve length: Sleeveless
£149.00
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Petite Premium Embellished Cape Maxi Dress
Petite
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KarenMillen

Petite Premium Embellished Cape Maxi Dress

  • Length: Maxi
  • Style: Maxi Dress
£328.30 £469.00
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Petite Crinkle Halter Neck Woven Maxi Dress
Petite
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KarenMillen

Petite Crinkle Halter Neck Woven Maxi Dress

  • Detail: Plain
  • Sleeve length: Sleeveless
  • Style: Maxi Dress
£179.00
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Embellished Pleated Woven Maxi Dress
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KarenMillen

Embellished Pleated Woven Maxi Dress

  • Length: Maxi
  • Sleeve length: Strappy
  • Style: Maxi Dress
£216.30 £309.00
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Forever Twill Collared Maxi Dress
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KarenMillen

Forever Twill Collared Maxi Dress

  • Length: Maxi
  • Sleeve length: Sleeveless
  • Style: Maxi Dress
£159.00
mint color lemon color
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Petite Premium Viscose Jersey Hardware Maxi Dress
Petite
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KarenMillen

Petite Premium Viscose Jersey Hardware Maxi Dress

  • Design: Plain
  • Fabric: Jersey
  • Style: Maxi Dress
£60.00 £199.00
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Fringed Velvet Devore Long Sleeve Woven Maxi Dress
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KarenMillen

Fringed Velvet Devore Long Sleeve Woven Maxi Dress

  • Length: Maxi
  • Sleeve length: Long Sleeve
  • Style: Maxi Dress
£60.00 £239.00
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Floral Pleat Detail Woven Maxi Dress
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KarenMillen

Floral Pleat Detail Woven Maxi Dress

  • Length: Maxi
  • Sleeve length: Sleeveless
  • Style: Maxi Dress
£57.00 £189.00
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Soft Tailored Waterfall Sleeve Maxi Dress
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KarenMillen

Soft Tailored Waterfall Sleeve Maxi Dress

  • Length: Maxi
  • Sleeve length: Short Sleeve
  • Style: Maxi Dress
£60.00 £199.00
favourite
Premium Viscose Jersey Hardware Maxi Dress
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KarenMillen

Premium Viscose Jersey Hardware Maxi Dress

  • Length: Maxi
  • Sleeve length: Long Sleeve
  • Style: Maxi Dress
£50.00 £199.00
black color ivory color
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Slinky Crepe Twist Detail Maxi Dress
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KarenMillen

Slinky Crepe Twist Detail Maxi Dress

  • Detail: Plain
  • Fabric: Viscose
  • Neckline: Asymmetric
£97.30 £139.00
black color chocolate color pale-blue color
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Spot Drape Detail Viscose Woven Maxi Dress
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KarenMillen

Spot Drape Detail Viscose Woven Maxi Dress

  • Detail: All Over Print
  • Fabric: Woven
  • Sleeve length: Cap Sleeve
£127.20 £159.00
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Tall Applique Organdie Floral Graphic Maxi Dress
Tall
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KarenMillen

Tall Applique Organdie Floral Graphic Maxi Dress

  • Length: Maxi
  • Sleeve length: Long Sleeve
  • Style: Maxi Dress
£108.00 £359.00
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Crystal Embellished Cady Woven Cape Maxi Dress
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KarenMillen

Crystal Embellished Cady Woven Cape Maxi Dress

  • Length: Maxi
  • Sleeve length: Long Sleeve
  • Style: Maxi Dress
£174.00 £579.00
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Animal Print Mesh Ruched Maxi Dress
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KarenMillen

Animal Print Mesh Ruched Maxi Dress

  • Length: Maxi
  • Sleeve length: Long Sleeve
  • Style: Maxi Dress
£30.00 £99.00
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Petite Baroque Balloon Sleeve Maxi Dress
Petite
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KarenMillen

Petite Baroque Balloon Sleeve Maxi Dress

  • Design: All Over Print
  • Fabric: Woven
  • Style: Maxi Dress
£139.30 £199.00
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Crystal Embellished Halter Woven Maxi Dress
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KarenMillen

Crystal Embellished Halter Woven Maxi Dress

  • Length: Maxi
  • Sleeve length: Sleeveless
  • Style: Maxi Dress
£102.00 £339.00
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Taffeta Bow Detail Woven Maxi Dress
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KarenMillen

Taffeta Bow Detail Woven Maxi Dress

  • Length: Maxi
  • Sleeve length: Sleeveless
  • Style: Maxi Dress
£95.00 £379.00
hot-pink color black color
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Petite Tassel Embellished Fringe Detail Woven Maxi Dress
Petite
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KarenMillen

Petite Tassel Embellished Fringe Detail Woven Maxi Dress

  • Design: Embellished
  • Fabric: Woven
  • Style: Maxi Dress
£389.00
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Crystal Applique Woven Maxi Rosette Maxi Dress
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KarenMillen

Crystal Applique Woven Maxi Rosette Maxi Dress

  • Length: Maxi
  • Sleeve length: Sleeveless
  • Style: Maxi Dress
£299.00 £499.00
teal color ivory color
favourite
Petite Embellished Ruffle Strappy Woven Maxi Dress
Petite
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KarenMillen

Petite Embellished Ruffle Strappy Woven Maxi Dress

  • Length: Maxi
  • Sleeve length: Strappy
  • Style: Maxi Dress
£90.00 £299.00
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Crystal Embellished Cowl Back Maxi Dress
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KarenMillen

Crystal Embellished Cowl Back Maxi Dress

  • Detail: Plain
  • Fabric: Jersey
  • Length: Maxi
£181.30 £259.00
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Satin Drape One Shoulder Tailored Maxi Dress
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KarenMillen

Satin Drape One Shoulder Tailored Maxi Dress

  • Length: Maxi
  • Sleeve length: Long Sleeve
  • Style: Maxi Dress
£72.00 £239.00
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