Skip to main content
Close Search
Clear Search Input
search button Go to account Go to wishlist Go to cart

Long Cocktail Dresses

Empowered aesthetics are elongated with elegant appeal for this long cocktail dresses collection. This after-dark collection appears in a captivating canvas of color, with the sleek long black cocktail dresses offsetting a vibrant palette of bold brights, regal reds, rich jewel tones, and refined neutrals aplenty. Below, you’ll find long cocktail dresses that appear in premium materials such as silky satin twill, structured crêpe, and flowing organza, offset by sculpting jersey, jacquard, and four-way support Compact Stretch. Ready to captivate the crowd, this elevated edit appears with unique details, including feather cuffs, sequins, floral jacquard, embroidery, and embellishments. Discover more below.
Read More
345 products

Filters

Size Open or Close section Open or Close section
Colour Open or Close section Open or Close section
Price Open or Close section Open or Close section
Gender Open or Close section Open or Close section
Occasion Open or Close section Open or Close section
Shop by Fit Open or Close section Open or Close section
Style Open or Close section Open or Close section
Search for style
  • No results found
Length Open or Close section Open or Close section
Sleeve length Open or Close section Open or Close section
Design Open or Close section Open or Close section
Detail Open or Close section Open or Close section
Fabric Open or Close section Open or Close section
Neckline Open or Close section Open or Close section
Sort:   Relevance
Open or Close section
  • Price: Low-high
  • Price: High-Low
  • Sort: Relevance
  • Sort: Best Sellers
  • Sort: Newness
favourite
Viscose Rib Pu Mix Tab Detail Pleated Knit Mini Dress
View
KarenMillen

Viscose Rib Pu Mix Tab Detail Pleated Knit Mini Dress

  • Length: Mini
  • Sleeve length: Long Sleeve
  • Style: Mini Dress
£149.00
stone color black color
favourite
Viscose Blend Sheer Skirt Maxi Knit Dress
View
KarenMillen

Viscose Blend Sheer Skirt Maxi Knit Dress

  • Occasion: Daywear
  • SleeveLength: Sleeveless
  • Style: Knitted Dress
£149.00
cream color black color
favourite
Stripe Fitted Long Sleeve Knitted Midi Dress
View
KarenMillen

Stripe Fitted Long Sleeve Knitted Midi Dress

  • Occasion: Daywear
  • SleeveLength: Long Sleeve
  • Style: Midi Dress
£129.00
green color navy color
favourite
Wool Blend Sheer Knitted Skirt Dress
View
KarenMillen

Wool Blend Sheer Knitted Skirt Dress

  • Length: Maxi
  • Occasion: Daywear
  • Style: Knitted Dress
£49.00 £139.00
taupe color ink color
favourite
Abstract Zebra Print Ruched Detail Collared Mini Crepe Shirt Dress
View
KarenMillen

Abstract Zebra Print Ruched Detail Collared Mini Crepe Shirt Dress

  • Occasion: Daywear
  • SleeveLength: Long Sleeve
  • Style: Mini Dress
£28.00 £79.00
favourite
Jacquard Zebra Print Slinky Maxi Dress
View
KarenMillen

Jacquard Zebra Print Slinky Maxi Dress

  • Length: Maxi
  • Occasion: Daywear
  • SleeveLength: Sleeveless
£42.00 £139.00
favourite
Beach Metallic Thread Strappy Maxi Dress
Tall
View
KarenMillen

Beach Metallic Thread Strappy Maxi Dress

  • Occasion: Beachwear
  • Style: Beach Dress
£89.00
favourite
Viscose Blend Knit Corsage Detail Maxi Dress
View
KarenMillen

Viscose Blend Knit Corsage Detail Maxi Dress

  • Length: Maxi
  • SleeveLength: Sleeveless
  • Style: Knitted Dress
£42.00 £139.00
blush color navy color
favourite
Drapey Crepe Jersey Maxi Dress
View
KarenMillen

Drapey Crepe Jersey Maxi Dress

  • Length: Maxi
  • Occasion: Daywear
  • SleeveLength: Sleeveless
£36.00 £119.00
lilac color lemon color navy color
favourite
Velvet Plunge Neck Taffeta Peplum Long Sleeve Mini Dress
View
KarenMillen

Velvet Plunge Neck Taffeta Peplum Long Sleeve Mini Dress

  • Length: Mini
  • Sleeve length: Long Sleeve
  • Style: Mini Dress
£49.00 £139.00
favourite
Viscose Blend Stud Keyhole Detail Knit Maxi Dress
View
KarenMillen

Viscose Blend Stud Keyhole Detail Knit Maxi Dress

  • Length: Maxi
  • Occasion: Daywear
  • Style: Maxi Dress
£159.00
cream color black color
favourite
Foil Metallic Figure Form Bandage Angel Sleeve Knit Maxi Dress
Tall
View
KarenMillen

Foil Metallic Figure Form Bandage Angel Sleeve Knit Maxi Dress

  • Length: Maxi
  • Sleeve length: Sleeveless
  • Style: Maxi Dress
£149.00
hot-pink color silver color
favourite
Scuba Scoop Neck Long Sleeve Mini Dress
View
KarenMillen

Scuba Scoop Neck Long Sleeve Mini Dress

  • Length: Mini
  • Sleeve length: Long Sleeve
  • Style: Mini Dress
£139.00
favourite
Velvet Sleeveless Body With Taffeta Drop Waist Maxi Dress
View
KarenMillen

Velvet Sleeveless Body With Taffeta Drop Waist Maxi Dress

  • Length: Maxi
  • Occasion: Occasion
  • Style: Maxi Dress
£72.00 £179.00
favourite
Knitted Zip Neck Pu Mix Pleated Mini Dress
View
KarenMillen

Knitted Zip Neck Pu Mix Pleated Mini Dress

  • Length: Mini
  • SleeveLength: Long Sleeve
  • Style: Mini Dress
£149.00
burgundy color black color
favourite
Premium Stretch Crepe Jersey Plunge Neck Maxi Dress
View
KarenMillen

Premium Stretch Crepe Jersey Plunge Neck Maxi Dress

  • Occasion: Going Out
  • SleeveLength: Long Sleeve
  • Style: Maxi Dress
£70.00 £199.00
favourite
Viscose Blend Stud Keyhole Detail Knit Mini Dress
View
KarenMillen

Viscose Blend Stud Keyhole Detail Knit Mini Dress

  • Occasion: Daywear
  • SleeveLength: Long Sleeve
  • Style: Mini Dress
£129.00
black color magenta color
favourite
Foil Metallic Figure Form Angel Sleeve Knit Maxi Dress
Tall
View
KarenMillen

Foil Metallic Figure Form Angel Sleeve Knit Maxi Dress

  • Length: Maxi
  • Sleeve length: Sleeveless
  • Style: Maxi Dress
£149.00
favourite
Scarf Mirrored Print Cotton Voile Beach Maxi Dress
View
KarenMillen

Scarf Mirrored Print Cotton Voile Beach Maxi Dress

  • Occasion: Daywear
  • Style: Beachwear
£99.00
favourite
Floral Printed Mesh Ruched One Shoulder Maxi Dress
View
KarenMillen

Floral Printed Mesh Ruched One Shoulder Maxi Dress

  • Length: Maxi
  • Sleeve length: Sleeveless
  • Style: Maxi Dress
£24.00 £69.00
favourite
Textured Hanky Hem Short Sleeve Trim Detail Jersey Maxi Dress
View
KarenMillen

Textured Hanky Hem Short Sleeve Trim Detail Jersey Maxi Dress

  • Occasion: Occasion
  • SleeveLength: Short Sleeve
  • Style: Maxi Dress
£42.00 £119.00
favourite
Premium Slinky Crepe High Neck Scarf Detail Maxi Dress
View
KarenMillen

Premium Slinky Crepe High Neck Scarf Detail Maxi Dress

  • Occasion: Occasion
  • SleeveLength: Sleeveless
  • Style: Maxi Dress
£88.00 £219.00
favourite
Knitted Zip Neck Pu Mix Pleated Midi Dress
View
KarenMillen

Knitted Zip Neck Pu Mix Pleated Midi Dress

  • Length: Midi
  • Occasion: Daywear
  • Style: Midi Dress
£169.00
black color stone color
favourite
Floral Printed Mesh Ruched Long Sleeve Maxi Dress
View
KarenMillen

Floral Printed Mesh Ruched Long Sleeve Maxi Dress

  • Length: Maxi
  • Occasion: Daywear
  • SleeveLength: Long Sleeve
£26.00 £75.00
favourite
Tall Abstract Zebra Print Ruched Detail Collared Mini Crepe Shirt Dress
Tall
View
KarenMillen

Tall Abstract Zebra Print Ruched Detail Collared Mini Crepe Shirt Dress

  • Length: Mini
  • SleeveLength: Long Sleeve
  • Style: Mini Dress
£79.00
favourite
Twist Yarn Zip Detail Figure Form Ribbed Knitted Dress
View
KarenMillen

Twist Yarn Zip Detail Figure Form Ribbed Knitted Dress

  • Length: Midi
  • Sleeve length: Long Sleeve
  • Style: Knitted Dress
£36.00 £119.00
favourite
Chain Print Cotton Sateen Belt Detail Woven Shirt Dress
View
KarenMillen

Chain Print Cotton Sateen Belt Detail Woven Shirt Dress

  • Length: Midi
  • Sleeve length: Long Sleeve
  • Style: Shirt Dress
£179.00
favourite
Compact Jersey Rib Cap Sleeve Maxi Dress
View
KarenMillen

Compact Jersey Rib Cap Sleeve Maxi Dress

  • Length: Maxi
  • Sleeve length: Cap Sleeve
  • Style: Maxi Dress
£49.00
white color black color
favourite
Ponte Crew Neck Maxi Dress
View
KarenMillen

Ponte Crew Neck Maxi Dress

  • Length: Maxi
  • Sleeve length: Sleeveless
  • Style: Maxi Dress
£29.00 £95.00
favourite
Floral Applique Lace Pleated Strappy Maxi Dress
View
KarenMillen

Floral Applique Lace Pleated Strappy Maxi Dress

  • Occasion: Occasion
  • SleeveLength: Strappy
  • Style: Maxi Dress
£87.00 £289.00
favourite
Cosmic Cold Shoulder Woven Maxi Dress
View
KarenMillen

Cosmic Cold Shoulder Woven Maxi Dress

  • Length: Maxi
  • Sleeve length: Long Sleeve
  • Style: Dress
£80.00 £159.00
favourite
Plunge Ruched Twist Jersey Maxi Dress
View
KarenMillen

Plunge Ruched Twist Jersey Maxi Dress

  • Occasion: Daywear
  • SleeveLength: Sleeveless
  • Style: Maxi Dress
£57.00 £189.00
mango color green color
favourite
Animal Print Georgette Embellished Short Sleeve Woven Maxi Dress
View
KarenMillen

Animal Print Georgette Embellished Short Sleeve Woven Maxi Dress

  • Length: Maxi
  • Sleeve length: Short Sleeve
  • Style: Maxi Dress
£99.00 £329.00
favourite
Viscose Blend Rib Knit Power Shoulder Military Trim Maxi Dress
View
KarenMillen

Viscose Blend Rib Knit Power Shoulder Military Trim Maxi Dress

  • Length: Maxi
  • Sleeve length: 3/4 Sleeve
  • Style: Knitted Dress
£99.00
pale-blue color black color
favourite
Woven Sleeved Pleated Dress With Pu
View
KarenMillen

Woven Sleeved Pleated Dress With Pu

  • Occasion: Occasion
  • SleeveLength: Long Sleeve
  • Style: Knitted Dress
£85.00 £169.00
grey color ivory color stone color olive color burgundy color
favourite
Contrast Tipping Tie Waist Long Sleeve Woven Trench Midi Dress
View
KarenMillen

Contrast Tipping Tie Waist Long Sleeve Woven Trench Midi Dress

  • Length: Midi
  • Sleeve length: Long Sleeve
  • Style: Midi Dress
£68.00 £169.00
favourite
Applique Organdie Buttoned Woven Maxi Dress
View
KarenMillen

Applique Organdie Buttoned Woven Maxi Dress

  • Length: Maxi
  • Sleeve length: Long Sleeve
  • Style: Maxi Dress
£111.00 £369.00
favourite
Striped Bardot Knitted Maxi Dress
View
KarenMillen

Striped Bardot Knitted Maxi Dress

  • Length: Maxi
  • SleeveLength: Sleeveless
  • Style: Knitted Dress
£45.00 £129.00
cream color blue color
favourite
Floral Print Crepe Tie Neck Long Sleeve Mini Dress
View
KarenMillen

Floral Print Crepe Tie Neck Long Sleeve Mini Dress

  • Occasion: Daywear
  • SleeveLength: Long Sleeve
  • Style: Mini Dress
£30.00 £85.00
favourite
Ombre One Shoulder Mesh Jersey Maxi Dress
View
KarenMillen

Ombre One Shoulder Mesh Jersey Maxi Dress

  • Length: Maxi
  • Sleeve length: Half Sleeve
  • Style: Maxi Dress
£35.00 £99.00
Showing 40 of 345
Back to main content