Plus Size Birthday Dresses
Spotlighting our esteemed focus on bespoke size and fit, discover an elevated edit of plus size birthday dresses that will mark your moment with luxurious aplomb. Ready for your 21st, 30th, 40th, and beyond, the mini, midi, and maxi silhouettes in our plus size birthday dress edit are crafted from premium textiles. 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 bespoke fit with four-way support. Scintillating with extra-special aplomb, you’ll also find the plus size sequin birthday dress below. Find your plus size dress for birthday below.
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Plus Size Mother of the Bride Dresses
Plus Size Occasion Dresses
Plus Size Wrap Dresses
Plus Size Navy Dresses
Plus Size Floral Dresses
Plus Size Casual Dresses
Plus Size Blue Dresses
Plus Size Pink Dresses
Plus Size Green Dresses
Plus Size Black Dresses
Plus Size Orange Dresses
Plus Size Red Dresses
Plus Size Nude Dresses
Plus Size A Line Dresses
Plus Size White Dresses
Plus Size Pleated Dresses
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KarenMillen
Scuba Drama Ruffle Hem Woven Maxi Dress
- Detail: Ruffle
- Neckline: Crew
- Style: Maxi Dress
£159.00
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KarenMillen
Figure Form Crystal Embellished Maxi Dress
- Detail: Embellished
- Length: Maxi
- Neckline: V Neck
£83.40
£139.00
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KarenMillen
Crystal Neck Trim Viscose Ribbed Maxi Dress With Godets
- Detail: Embellished
- Fabric: Knitted
- Length: Maxi
£83.40
£139.00
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KarenMillen
Drapey Crepe Maxi Dress With Gathered Cape Detail
- Design: Plain
- Detail: Ruched
- Fabric: Polyester
£74.00
£149.00
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KarenMillen
Stretch Crepe Jersey Plunge Neck Maxi Dress
- Detail: Draping
- Length: Maxi
- Neckline: V Neck
£107.40
£179.00
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KarenMillen
Stretch Velvet Crystal Embellished Long Sleeve Maxi Dress
- Design: Fabric Interest
- Fabric: Jersey
- Sleeve length: Long Sleeve
£89.40
£149.00
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KarenMillen
Crystal Embellished Ruched Detail Sleeveless Midi Dress
- Length: Midi
- Sleeve length: Long Sleeve
- Style: Midi Dress
£63.00
£179.00
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KarenMillen
Long Sleeve Slinky Drape Ruched Detail Maxi Dress
- Detail: Plain
- Length: Maxi
- Style: Maxi Dress
£77.40
£129.00
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KarenMillen
Twist Detail Studded Jersey Maxi Dress
- Detail: Studded
- Fabric: Jersey
- Style: Maxi Dress
£90.00
£179.00
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KarenMillen
Ponte And Georgette Mix Balloon Sleeve Cut Out Detail Pleated Maxi Dress
- Fabric: Jersey
- Length: Maxi
- Sleeve length: Long Sleeve
£65.00
£129.00
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KarenMillen
Crystal Embellished Ruched Detail Sleeveless Midi Dress
- Detail: Embellished
- Fabric: Polyester
- Sleeve length: Long Sleeve
£63.00
£179.00
Plus
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KarenMillen
Plus Size Forever Twill Woven Prom Maxi Skirt
- Design: Plain
- Length: Maxi
- Style: Maxi Skirt
£99.00
Plus
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KarenMillen
Plus Size Pinstripe Tailored Sleeveless Midi Dress
- Design: Pinstripe
- Length: Midi
- Sleeve length: Sleeveless
£199.00
Plus
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KarenMillen
Plus Size Pinstripe Belted Tailored Shirt Dress
- Neckline: Collared
- Sleeve length: Sleeveless
- Style: Shirt Dress
£249.00
Plus
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KarenMillen
Plus Size Gold Beaded Bandeau Velvet Midi Dress
- Design: Embellished
- Length: Midi
- Neckline: Bandeau
£259.00
Plus
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KarenMillen
Plus Size Pleated Bead Detail Halterneck Maxi Dress
- Design: Plain
- Length: Maxi
- Style: Maxi Dress
£89.40
£149.00
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KarenMillen
Crystal Applique Angel Sleeve Woven Maxi Dress
- Detail: Applique
- Sleeve length: Short Sleeve
- Style: Maxi Dress
£293.40
£489.00
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KarenMillen
Drapey Crepe Off The Shoulder Ruched Detail Fishtail Maxi Dress
- Design: Plain
- Detail: Ruched
- Neckline: Off the Shoulder
£149.00
Plus
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KarenMillen
Plus Size Scenic Print Cotton Sateen Shirt Dress
- Fabric: Woven
- Neckline: Collared
- Style: Shirt Dress
£74.00
£149.00
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KarenMillen
Hot Fix Draped Detail Jersey Maxi Dress
- Length: Maxi
- Neckline: Crew
- Sleeve length: Cap Sleeve
£137.40
£229.00
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KarenMillen
Drapey Crepe Ruched Detail Maxi Dress
- Fabric: Acetate slinky
- Length: Maxi
- Neckline: Cowl
£89.40
£149.00
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KarenMillen
Premium Ruched Long Sleeved Jersey Maxi Dress
- Length: Maxi
- Neckline: Crew
- Style: Maxi Dress
£89.40
£149.00
Petite
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KarenMillen
Petite Scoop Neck Jersey Cotton Mix Maxi Dress
- Design: Plain
- Neckline: Scoop
- Sleeve length: Strappy
£65.00
£129.00
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KarenMillen
Studded Ponte Jersey Midi Dress
- Length: Midi
- Sleeve length: Sleeveless
- Style: Midi Dress
£64.00
£129.00
Plus
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KarenMillen
Plus Size Essential Techno Short Sleeve Woven Shirt Dress With Gold Hardware
- Length: Maxi
- Occasion: Daywear
- SleeveLength: Short Sleeve
£77.40
£129.00
Petite
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KarenMillen
Petite Forever Ponte And Georgette Jersey Pleated Maxi Dress
- Fabric: Jersey
- Length: Maxi
- Style: Maxi Dress
£139.00
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KarenMillen
Cotton Ponte Jersey Ruffle Hem Maxi Dress
- Detail: Ruffle
- Length: Maxi
- Sleeve length: Strappy
£83.30
£119.00
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KarenMillen
Plus Size Embroidered Halterneck Pleated Midi Dress
- Design: Embroidered
- Detail: Embroidered
- Length: Midi
£179.40
£299.00
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KarenMillen
Premium Embellished Caped Maxi Dress
- Design: Fabric Interest
- Sleeve length: Long Sleeve
- Style: Maxi Dress
£239.40
£399.00
Petite
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KarenMillen
Petite Crystal Embellished Tie Detail Halter Neck Maxi Dress
- Neckline: High Neck
- Sleeve length: Sleeveless
- Style: Maxi Dress
£99.00
£199.00
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KarenMillen
Premium Slinky Crepe Embellished Cut Out Maxi Dress
- Design: Embellished
- Neckline: Asymmetric
- Sleeve length: Long Sleeve
£49.00
£139.00
Petite
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KarenMillen
Petite Drapey Crepe Maxi Dress With Gathered Cape Detail
- Detail: Ruched
- Fabric: Polyester
- Sleeve length: Sleeveless
£75.00
£149.00
Petite
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KarenMillen
Petite Scuba Crepe Crystal Bow Detail Midi Dress
- Detail: Backless
- Neckline: Crew
- Style: Midi Dress
£239.00
Petite
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KarenMillen
Petite Long Sleeve Slinky Drape Ruched Detail Maxi Dress
- Detail: Plain
- Length: Maxi
- Style: Maxi Dress
£77.40
£129.00
Plus
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KarenMillen
Plus Size Forever Soft Tailored Colour Block High Neck Pleated Midi Dress
- Neckline: High Neck
- Sleeve length: Sleeveless
- Style: Midi Dress
£119.40
£199.00
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KarenMillen
Blue Floral Off The Shoulder Shirred Woven Maxi Dress
- Design: Floral
- Detail: Floral
- Style: Maxi Dress
£56.00
£159.00
Plus
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KarenMillen
Plus Size Compact Stretch and Sheer Tailored Pencil Dress
- Length: Midi
- Sleeve length: Long Sleeve
- Style: Pencil Dress
£249.00
Plus
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KarenMillen
Plus Size Premium Crystal Embellished Jersey Cowl Detail Top
- Design: Embellished
- Detail: Embellished
- Neckline: Cowl
£71.40
£119.00
Petite
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KarenMillen
Petite Stretch Crepe Jersey Plunge Neck Maxi Dress
- Design: Plain
- Fabric: Polyester
- Style: Maxi Dress
£107.40
£179.00
Plus
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KarenMillen
Plus Size Tailored Belted Midi Skirt Pencil Dress
- Fabric: Polyester
- Length: Midi
- Style: Pencil Dress
£77.40
£129.00
Showing 40 of 515