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Summer Occasion Dresses
Summer Occasion Dresses

Celebrate the summer season in style with Karen Millen’s curated collection of summer occasion dresses, designed to bring refined elegance and modern polish to every sunlit event. Whether you’re attending a garden party, a destination wedding, or a summer race day, this edit of special occasion dresses for summer offers a balance of sophistication and ease. Crafted from breathable, lightweight fabrics such as flowing chiffon, crisp cotton poplin, soft linen blends, and lustrous satin, each silhouette is designed for warm weather. Explore a variety of styles, including floral patterns, bold brights, soft pastels, and timeless neutrals. Each piece features thoughtful details such as pleating, tiered skirts, delicate draping, and feminine ruching. Explore our collection and find your perfect fit below.

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  • KarenMillen
    Viscose Satin Border Print Halter Neck Woven Maxi Dress
    £189.00 £57.00 (70 % off)
  • KarenMillen
    Embellished Figure Form Bandage Sleeveless Knit Maxi Dress
    £149.00 £75.00 (50 % off)
  • BESTSELLER
    KarenMillen
    Figure Form Bandage Tassel Hem Knitted Dress
    £139.00 £97.00 (30 % off)
  • KarenMillen
    Floral Twill Woven Prom Skirt
    £99.00 £69.00 (30 % off)
  • KarenMillen
    Figure Form Bandage Sleeveless Pencil Knit Maxi Dress
    £139.00 £70.00 (50 % off)
  • KarenMillen
    Embellished Fringe Bandeau Figure Form Maxi Dress
    £149.00 £45.00 (70 % off)
  • PETITE 5'3 AND UNDER
    KarenMillen
    Petite Bandage Figure Form Knit Embellished Maxi Dress
    £149.00 £60.00 (60 % off)
  • KarenMillen
    Embellished Figure Form Bandeau Maxi Dress
    £169.00 £51.00 (70 % off)
  • KarenMillen
    Scuba Drama Ruffle Hem Woven Maxi Dress
    £169.00 £85.00 (50 % off)
  • KarenMillen
    Floral Applique Organdie Woven Halter Neck Maxi Dress
    £279.00 £84.00 (70 % off)
  • BESTSELLER
    KarenMillen
    Ombre Floral Ruffle Sleeve Button Through Maxi Dress
    £119.00 £60.00 (50 % off)
  • KarenMillen
    Animal Print Mesh Ruched Maxi Dress
    £99.00 £40.00 (60 % off)
  • KarenMillen
    Soft Tailored Trim Detail Full Skirt Midi Dress
    £179.00 £54.00 (70 % off)
  • KarenMillen
    Long Sleeve Ombre Mesh Maxi Dress
    £119.00 £60.00 (50 % off)
  • KM X VALERIE BERNARDINI
    KarenMillen
    Quilted Applique Organdie Angel Sleeve Woven Maxi Dress
    £399.00 £120.00 (70 % off)
  • KarenMillen
    Drapey Crepe Bandeau Split Maxi Dress
    £149.00 £45.00 (70 % off)
  • PETITE 5'3 AND UNDER
    KarenMillen
    Petite Soft Tailored Colour Block Bow Tie Neck Midi Dress
    £179.00 £54.00 (70 % off)
  • KarenMillen
    Embellished Figure Form Bandage Sleeveless Knit Maxi Dress
    £149.00 £104.00 (30 % off)
  • PETITE 5'3 AND UNDER
    KarenMillen
    Petite Scuba Drama Ruffle Hem Woven Maxi Dress
    £169.00 £68.00 (60 % off)
  • BESTSELLER
    KarenMillen
    Figure Form Bandage One Shoulder Fringe Mini Knit Dress
    £179.00 £90.00 (50 % off)
  • BESTSELLER
    KarenMillen
    One Shoulder Drapey Crepe Trim Detail Ruched Maxi Dress
    £89.00 £45.00 (49 % off)
  • KarenMillen
    Floral Border Print Viscose Woven Cape Sleeve Maxi Dress
    £159.00 £48.00 (70 % off)
  • KarenMillen
    Romantic Floral Print Prom Woven Mini Dress
    £129.00 £39.00 (70 % off)
  • KarenMillen
    Tulle Bandeau Tiered Midi Dress
    £139.00 £97.00 (30 % off)
  • KarenMillen
    Viscose Blend Slinky Sheer Lace Back Detail Knit Midi Dress
    £129.00 £39.00 (70 % off)
  • KarenMillen
    Scuba Drama Ruffle Hem Woven Maxi Dress
    £159.00 £95.00 (40 % off)
  • KarenMillen
    Placed Floral Halter Embroidered Crepe Woven Maxi Dress
    £299.00 £90.00 (70 % off)
  • Tall 5'10 and Over
    KarenMillen
    Tall Placed Floral Halter Embroidered Crepe Woven Maxi Dress
    £299.00 £90.00 (70 % off)
  • KarenMillen
    Viscose Blend Slinky Sheer Lace Detail Knit Maxi Dress
    £149.00 £45.00 (70 % off)
  • KarenMillen
    Botanical Embroidery Organdie Angel Sleeve Midi Dress
    £299.00 £269.00 (10 % off)
  • BESTSELLER
    KarenMillen
    Jersey Crepe Asymmetric Neckline Maxi Dress
    £99.00 £40.00 (60 % off)
  • PETITE 5'3 AND UNDER
    KarenMillen
    Petite Figure Form Bandage Sleeveless Pencil Knit Maxi Dress
    £139.00 £70.00 (50 % off)
  • TALL 5’10 AND OVER
    KarenMillen
    Tall Viscose Blend Slinky Sheer Lace Detail Knit Maxi Dress
    £149.00 £45.00 (70 % off)
  • BESTSELLER
    KarenMillen
    Embroidered Organdie Balloon Sleeve Woven Maxi Dress
    £339.00 £237.00 (30 % off)
  • KarenMillen
    Lily Macrae Polished Tailored Print Halter Neck Gathered Midi Dress
    £259.00 £155.00 (40 % off)
  • PETITE 5'3 AND UNDER
    KarenMillen
    Petite Soft Tailored Trim Detail Full Skirt Midi Dress
    £179.00 £54.00 (70 % off)
  • TALL 5’10 AND OVER
    KarenMillen
    Tall Devoure One Shoulder Woven Maxi Dress With Trim Detail
    £189.00 £57.00 (70 % off)
  • KarenMillen
    Placed Floral Taffeta Belted Woven Maxi Shirt Dress
    £169.00 £118.00 (30 % off)
  • KM X VALERIE BERNARDINI
    KarenMillen
    Tall Quilted Applique Organdie Angel Sleeve Woven Maxi Dress
    £399.00 £120.00 (70 % off)
  • BY LYDIA
    KarenMillen
    Floral Jacquard Corseted Woven Maxi Dress
    £229.00 £206.00 (10 % off)
  • KarenMillen
    Soft Tailored Cape Detail Mini Dress
    £199.00 £100.00 (50 % off)
  • KarenMillen
    Floral Organdie Woven Midi Shirt Dress
    £169.00 £85.00 (50 % off)
  • KarenMillen
    Figure Form Bandage One Shoulder Fringe Mini Knit Dress
    £179.00 £72.00 (60 % off)
  • PLUS SIZE
    KarenMillen
    Plus Size Bandage Figure Form Knit Tassel Sleeve Detail Maxi Dress
    £129.00 £65.00 (50 % off)
  • KarenMillen
    Applique Organdie Satin Woven Midi Dress
    £329.00 £99.00 (70 % off)
  • PETITE 5'3 AND UNDER
    KarenMillen
    Petite Blurred Floral Drama Woven Taffeta Maxi Dress
    £139.00 £97.00 (30 % off)
  • PETITE 5'3 AND UNDER
    KarenMillen
    Petite Digital Ophelia Liquid Metallic Split Woven Maxi Dress
    £159.00 £143.00 (10 % off)
  • KarenMillen
    Viscose Floral Border Print Woven Maxi Dress
    £199.00 £179.00 (10 % off)
  • KarenMillen
    Striped Bardot Knit Maxi Dress
    £119.00 £83.00 (30 % off)
  • KarenMillen
    Soft Tailored One Shoulder Cape Sleeve Maxi Dress
    £259.00 £155.00 (40 % off)
  • KarenMillen
    Digital Ophelia Liquid Metallic Split Woven Maxi Dress
    £159.00 £143.00 (10 % off)
  • KarenMillen
    Crinkle Cross Front Georgette Woven Maxi Dress
    £169.00 £118.00 (30 % off)
  • KarenMillen
    Tulle Bandeau Tiered Midi Dress
    £169.00 £118.00 (30 % off)
  • KarenMillen
    Cold Shoulder 3D Floral Applique Woven Maxi Dress
    £319.00 £223.00 (30 % off)
  • KarenMillen
    Floral Georgette Woven Midi Dress
    £99.00 £69.00 (30 % off)
  • KarenMillen
    Soft Tailored Cape Detail Tailored Midi Dress
    £219.00 £153.00 (30 % off)
  • PETITE 5'3 AND UNDER
    KarenMillen
    Petite Viscose Floral Border Print Maxi Dress
    £199.00 £139.00 (30 % off)
  • PETITE 5'3 AND UNDER
    KarenMillen
    Petite Floral Jacquard Corseted Woven Maxi Dress
    £229.00 £160.00 (30 % off)
  • PETITE 5'3 AND UNDER
    KarenMillen
    Petite Viscose Woven Floral Border Shirt Midi Dress
    £159.00 £111.00 (30 % off)
  • KarenMillen
    Organdie Plunge Collared Woven Maxi Dress
    £169.00 £152.00 (10 % off)

Summer Occasion Dresses for Women