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Plus Size Birthday Dresses

Custom cuts for celebration-ready elegance, find an unforgettable birthday fit for 21st, 30th and beyond in the plus size birthday dresses edit. Offering a bespoke approach to after-dark luxury, the mini, midi and maxi silhouettes in the plus size birthday dresses collection boast premium textiles aplenty. Think tactile silhouettes that flow with plenty of silk, chiffon, mesh, leather, satin, and polished twill iterations, alongside sculpting iterations that are crafted from close-fitting knits. You’ll find plenty of ponte, structured crêpe, knitted jersey, and our industry-revered Compact Stretch — creating a contoured approach to plus size birthday outfits. Find your signature color from streamlined black, feminine pink, refined neutrals, soft pastels, and plenty of bold brights. Party-ready with dramatic touches (such as feather cuffs, shimmering sequins, bright paillettes, lace trims and intricate embellishments), find birthday dresses for women plus size below.
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favourite
Plus Size Foil Metallic Figure Form Bandage Angel Sleeve Knit Maxi Dress
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KarenMillen

Plus Size Foil Metallic Figure Form Bandage Angel Sleeve Knit Maxi Dress

  • Length: Maxi
  • Sleeve length: Sleeveless
  • Style: Maxi Dress
$299.00
silver color hot-pink color
favourite
Plus Size Soft Tailored One Shoulder Cape Sleeve Maxi Dress
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KarenMillen

Plus Size Soft Tailored One Shoulder Cape Sleeve Maxi Dress

  • Length: Maxi
  • Sleeve length: Sleeveless
  • Style: Maxi Dress
$519.00
favourite
Plus Size Tailored Cape Detail Maxi Dress
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KarenMillen

Plus Size Tailored Cape Detail Maxi Dress

  • Occasion: Occasion
  • SleeveLength: Long Sleeve
  • Style: Maxi Dress
$359.00 $599.00
favourite
Plus Size Compact Stretch Bow Tie Neck Trim Detail Tailored Full Midi Dress
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KarenMillen

Plus Size Compact Stretch Bow Tie Neck Trim Detail Tailored Full Midi Dress

  • Length: Midi
  • Sleeve length: Sleeveless
  • Style: Midi Dress
$239.00 $479.00
favourite
Plus Size Soft Tailored Colour Block High Neck Pleated Midi Dress
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KarenMillen

Plus Size Soft Tailored Colour Block High Neck Pleated Midi Dress

  • Length: Midi
  • Sleeve length: Sleeveless
  • Style: Midi Dress
$399.00
favourite
Plus Size Premium Ruched Jersey Maxi Dress
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KarenMillen

Plus Size Premium Ruched Jersey Maxi Dress

  • Sleeve length: Short Sleeve
  • Style: Maxi Dress
$279.00
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Plus Size Polished Tailored Cape Drape Maxi Column Dress
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KarenMillen

Plus Size Polished Tailored Cape Drape Maxi Column Dress

  • Sleeve length: Sleeveless
  • Style: Maxi Dress
$439.00
favourite
Plus Size Foil Metallic Figure Form Bandage Strappy Knit Maxi Dress
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KarenMillen

Plus Size Foil Metallic Figure Form Bandage Strappy Knit Maxi Dress

  • Length: Maxi
  • Sleeve length: Strappy
  • Style: Maxi Dress
$299.00
blush color pale-blue color
favourite
Plus Size Crystal Embellished Woven Plunge Detail Maxi Dress
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KarenMillen

Plus Size Crystal Embellished Woven Plunge Detail Maxi Dress

  • Length: Maxi
  • SleeveLength: Long Sleeve
  • Style: Maxi Dress
$429.00 $719.00
favourite
Plus Size Floral Print Silk Cotton Strappy Woven Maxi Dress
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KarenMillen

Plus Size Floral Print Silk Cotton Strappy Woven Maxi Dress

  • Length: Maxi
  • Sleeve length: Strappy
  • Style: Maxi Dress
$439.00
favourite
Plus Size Premium Crystal Embellished Midi Dress
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KarenMillen

Plus Size Premium Crystal Embellished Midi Dress

  • Length: Midi
  • Sleeve length: Sleeveless
  • Style: Midi Dress
$269.00 $459.00
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Plus Size Compact Stretch Ruffle Peplum Belted Pencil Midi Dress
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KarenMillen

Plus Size Compact Stretch Ruffle Peplum Belted Pencil Midi Dress

  • Length: Midi
  • Sleeve length: Sleeveless
  • Style: Midi Dress
$459.00
favourite
Plus Size Scattered Floral Balloon Sleeve Pleated Crinkle Cut Out Woven Maxi Dress
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KarenMillen

Plus Size Scattered Floral Balloon Sleeve Pleated Crinkle Cut Out Woven Maxi Dress

  • Length: Maxi
  • Sleeve length: Long Sleeve
  • Style: Maxi Dress
$199.00 $399.00
favourite
Plus Size Marble Soft Pleated V Neck Woven Maxi Dress
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KarenMillen

Plus Size Marble Soft Pleated V Neck Woven Maxi Dress

  • Sleeve length: Sleeveless
  • Style: Maxi Dress
$209.00 $359.00
favourite
Plus Size Crystal Embellished Woven Plunge Detail Maxi Dress
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KarenMillen

Plus Size Crystal Embellished Woven Plunge Detail Maxi Dress

  • Length: Maxi
  • Sleeve length: Long Sleeve
  • Style: Maxi Dress
$499.00 $719.00
favourite
Plus Size Twill Contrast Tux Tailored Full Skirted Shirt Dress
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KarenMillen

Plus Size Twill Contrast Tux Tailored Full Skirted Shirt Dress

  • Length: Midi
  • Sleeve length: Sleeveless
  • Style: Full Skirted Dress
$459.00
favourite
Plus Size Bandage Figure Form Knit Woven Cape Detail Maxi Dress
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KarenMillen

Plus Size Bandage Figure Form Knit Woven Cape Detail Maxi Dress

  • Length: Maxi
  • Sleeve length: Sleeveless
  • Style: Maxi Dress
$259.00
favourite
Plus Size Premium Crystal Embellished Woven Maxi Dress
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KarenMillen

Plus Size Premium Crystal Embellished Woven Maxi Dress

  • Length: Maxi
  • SleeveLength: Long Sleeve
  • Style: Maxi Dress
$599.00 $1199.00
favourite
Plus Size Compact Stretch Tailored Colour Block Full Skirted Midi Dress
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KarenMillen

Plus Size Compact Stretch Tailored Colour Block Full Skirted Midi Dress

  • Length: Midi
  • Sleeve length: Sleeveless
  • Style: Midi Dress
$329.00 $479.00
favourite
Plus Size Botanical Embroidery Organdie Angel Sleeve Midi Dress
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KarenMillen

Plus Size Botanical Embroidery Organdie Angel Sleeve Midi Dress

  • Length: Midi
  • Sleeve length: Short Sleeve
  • Style: Midi Dress
$599.00
favourite
Plus Size Tailored Check Peplum Belted Mini Dress
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KarenMillen

Plus Size Tailored Check Peplum Belted Mini Dress

  • Length: Mini
  • Sleeve length: Long Sleeve
  • Style: Mini Dress
$359.00
favourite
Plus Size Figure Form Bandage Knit Asymmetric Strap Midi Dress
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KarenMillen

Plus Size Figure Form Bandage Knit Asymmetric Strap Midi Dress

  • Length: Midi
  • SleeveLength: Strappy
  • Style: Knitted Dress
$79.00 $259.00
favourite
Plus Size Baroque Organdie Applique And Beaded Bell Sleeve Woven Midi Dress
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KarenMillen

Plus Size Baroque Organdie Applique And Beaded Bell Sleeve Woven Midi Dress

  • Length: Midi
  • Sleeve length: Long Sleeve
  • Style: Midi Dress
$319.00 $799.00
favourite
Plus Size Crystal Embellished Scuba Crepe Bandeau Midi Dress
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KarenMillen

Plus Size Crystal Embellished Scuba Crepe Bandeau Midi Dress

  • Length: Maxi
  • SleeveLength: Long Sleeve
  • Style: Midi Dress
$469.00 $779.00
favourite
Archive Plus Size Mesh Embellished Embroidered Sheer Shirt Dress
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KarenMillen

Archive Plus Size Mesh Embellished Embroidered Sheer Shirt Dress

  • Length: Maxi
  • Sleeve length: Long Sleeve
  • Style: Maxi Dress
$229.00 $379.00
favourite
Plus Size Hand Embroidered And Sequin Organdie Deep V Woven Maxi Dress
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KarenMillen

Plus Size Hand Embroidered And Sequin Organdie Deep V Woven Maxi Dress

  • Occasion: Occasion
  • SleeveLength: Short Sleeve
  • Style: Maxi Dress
$239.00 $799.00
favourite
Plus Size Velvet Embellished Long Sleeve Maxi Dress
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KarenMillen

Plus Size Velvet Embellished Long Sleeve Maxi Dress

  • Length: Maxi
  • Sleeve length: Long Sleeve
  • Style: Maxi Dress
$359.00 $599.00
favourite
Plus Size Lace with black taping long sleeve woven maxi dress
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KarenMillen

Plus Size Lace with black taping long sleeve woven maxi dress

  • Occasion: Occasion
  • SleeveLength: Long Sleeve
  • Style: Maxi Dress
$189.00 $279.00
favourite
Plus Size Guipure Lace Woven Mini Dress
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KarenMillen

Plus Size Guipure Lace Woven Mini Dress

  • Length: Mini
  • Occasion: Occasion
  • SleeveLength: Long Sleeve
$179.00 $599.00
favourite
Plus Size Premium Slinky Crepe Scarf Detail Maxi Dress
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KarenMillen

Plus Size Premium Slinky Crepe Scarf Detail Maxi Dress

  • Length: Maxi
  • SleeveLength: Sleeveless
  • Style: Maxi Dress
$189.00 $379.00
favourite
Plus Size Drapey Crepe Off The Shoulder Ruched Detail Fishtail Maxi Dress
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KarenMillen

Plus Size Drapey Crepe Off The Shoulder Ruched Detail Fishtail Maxi Dress

  • Length: Maxi
  • Occasion: Occasion
  • Style: Maxi Dress
$149.00 $299.00
favourite
Plus Size Sequin Plunge Cowl Neck Strong Shoulder Long Sleeve Midi Dress
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KarenMillen

Plus Size Sequin Plunge Cowl Neck Strong Shoulder Long Sleeve Midi Dress

  • Length: Midi
  • Occasion: Occasion
  • Style: Midi Dress
$149.00 $299.00
favourite
Plus Size Tailored Crepe Cape Asymmetric Cape Neck Detail Midi Dress
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KarenMillen

Plus Size Tailored Crepe Cape Asymmetric Cape Neck Detail Midi Dress

  • Length: Midi
  • Sleeve length: Sleeveless
  • Style: Midi Dress
$339.00
favourite
Plus Size Leopard Print Mesh Maxi Dress
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KarenMillen

Plus Size Leopard Print Mesh Maxi Dress

  • Length: Maxi
  • Occasion: Occasion
  • SleeveLength: Long Sleeve
$99.00 $239.00
favourite
Plus Size Bandage Knit Contrast Cross Front Dress
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KarenMillen

Plus Size Bandage Knit Contrast Cross Front Dress

  • Length: Midi
  • Sleeve length: Sleeveless
  • Style: Midi Dress
$139.00 $279.00
favourite
Plus Size Bandage Figure Form Knit Embellished Maxi Dress
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KarenMillen

Plus Size Bandage Figure Form Knit Embellished Maxi Dress

  • Occasion: Occasion
  • SleeveLength: Strappy
  • Style: Maxi Dress
$179.00 $299.00
favourite
Plus Size Velvet Groisgrain Bandeau Midi Tailored Dress
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KarenMillen

Plus Size Velvet Groisgrain Bandeau Midi Tailored Dress

  • Length: Midi
  • Occasion: Occasion
  • Style: Midi Dress
$139.00 $479.00
favourite
Plus Size Stretch Drapey Crepe Ruched Plunge Neck Batwing Sleeve Maxi Dress
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KarenMillen

Plus Size Stretch Drapey Crepe Ruched Plunge Neck Batwing Sleeve Maxi Dress

  • Length: Maxi
  • Occasion: Occasion
  • Style: Maxi Dress
$139.00 $239.00
favourite
Plus Size Figure Form Bandage Sleeveless Pencil Knit Maxi Dress
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KarenMillen

Plus Size Figure Form Bandage Sleeveless Pencil Knit Maxi Dress

  • Occasion: Occasion
  • SleeveLength: Sleeveless
  • Style: Knitted Dress
$109.00 $279.00
favourite
Plus Size Tailored Velvet High Neck Mini Dress
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KarenMillen

Plus Size Tailored Velvet High Neck Mini Dress

  • Occasion: Occasion
  • SleeveLength: Long Sleeve
  • Style: Mini Dress
$129.00 $259.00
Showing 40 of 48
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