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
Crystal Embellished Ruched Detail Sleeveless Midi Dress
- Length: Midi
- Sleeve length: Long Sleeve
- Style: Midi Dress
£179.00
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KarenMillen
Crystal Embellished Ruched Detail Sleeveless Midi Dress
- Detail: Embellished
- Fabric: Polyester
- Sleeve length: Long Sleeve
£72.00
£179.00
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KarenMillen
Scoop Neck Jersey Cotton Mix Maxi Dress
- Detail: Belted
- Sleeve length: Strappy
- Style: Maxi Dress
£95.20
£119.00
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KarenMillen
Twist Detail Studded Jersey Maxi Dress
- Detail: Studded
- Fabric: Jersey
- Style: Maxi Dress
£143.20
£179.00
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KarenMillen
Marbled Print Mesh Ruched Maxi Dress
- Design: All Over Print
- Fabric: Polyester
- Neckline: Crew
£79.20
£99.00
Plus
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KarenMillen
Plus Size Twill Collared Woven Maxi Dress
- Length: Maxi
- Occasion: Daywear
- SleeveLength: Long Sleeve
£111.20
£139.00
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KarenMillen
Premium Slinky Crepe Embellished Cut Out Maxi Dress
- Design: Embellished
- Length: Maxi
- Neckline: Asymmetric
£139.00
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KarenMillen
Long Sleeve Jersey Maxi Dress
- Design: Plain
- Fabric: Jersey
- Neckline: High Neck
£48.00
£119.00
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KarenMillen
Whitley Neill Premium Crystal Embellished Midi Dress
- Detail: Embellished
- Fabric: Polyester
- Sleeve length: Sleeveless
£183.20
£229.00
Petite
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KarenMillen
Petite Scoop Neck Jersey Cotton Mix Maxi Dress
- Design: Plain
- Neckline: Scoop
- Sleeve length: Strappy
£103.20
£129.00
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KarenMillen
Crystal Embellished Cowl Back Maxi Dress
- Fabric: Jersey
- Length: Maxi
- Neckline: High Neck
£104.00
£259.00
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KarenMillen
Premium Slinky Crepe Embellished Cut Out Maxi Dress
- Design: Embellished
- Neckline: Asymmetric
- Sleeve length: Long Sleeve
£56.00
£139.00
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KarenMillen
Stripe Pleated Ruffle Sleeve Woven Maxi Dress
- Design: Plain
- Sleeve length: Cap Sleeve
- Style: Maxi Dress
£80.00
£199.00
Petite
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KarenMillen
Petite Crystal Embellished Tie Detail Halter Neck Maxi Dress
- Neckline: High Neck
- Sleeve length: Sleeveless
- Style: Maxi Dress
£199.00
Petite
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KarenMillen
Petite Ponte And Georgette Jersey Pleated Maxi Dress
- Design: Plain
- Fabric: Jersey
- Style: Maxi Dress
£139.00
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KarenMillen
Viscose Georgette Cape Sleeve Ruffle Woven Maxi Dress
- Length: Maxi
- Neckline: Round Neck
- Style: Maxi Dress
£135.20
£169.00
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KarenMillen
Drape Sleeve Embellished Midaxi Dress
- Design: Fabric Interest
- Neckline: Asymmetric
- Sleeve length: Long Sleeve
£96.00
£319.00
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KarenMillen
Scuba Drama Ruffle Hem Woven Maxi Dress
- Length: Maxi
- Neckline: Crew
- Style: Maxi Dress
£64.00
£159.00
Plus
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KarenMillen
Plus Size Sequin Halter Neck Hanky Hem Maxi Dress
- Length: Maxi
- Neckline: Halterneck
- Style: Maxi Dress
£169.00
Plus
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KarenMillen
Plus Size Geo Print Hammered Satin Tie Waist Woven Midi Dress
- Design: Geo
- Sleeve length: Long Sleeve
- Style: Midi Dress
£95.20
£119.00
Plus
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KarenMillen
Plus Size Check Tailored Dress
- Design: Check
- Fabric: Polyester
- Style: Tailored Dress
£199.00
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KarenMillen
Compact Stretch Diamante Trim Detail Column Dress
- Detail: Embellished
- Sleeve length: Sleeveless
- Style: Midi Dress
£249.00
Plus
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KarenMillen
Plus Size Floral Print Twill Midi Dress
- Design: Floral
- Detail: Floral
- Style: Midi Dress
£129.00
Plus
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KarenMillen
Plus Size Double Breasted Belted Tipped Tailored Midi Dress
- Length: Midi
- Neckline: Collared
- Sleeve length: Sleeveless
£183.20
£229.00
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KarenMillen
Drapey Crepe Bodice Detail Split Maxi Dress
- Design: Plain
- Detail: Plain
- Fabric: Polyester
£75.00
£149.00
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KarenMillen
Blue Floral Off The Shoulder Shirred Woven Maxi Dress
- Design: Floral
- Detail: Floral
- Style: Maxi Dress
£80.00
£159.00
Petite
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KarenMillen
Petite Compact Stretch Square Neck Tailored Full Skirted Maxi Dress
- Design: Plain
- Detail: Plain
- Sleeve length: Short Sleeve
£159.20
£199.00
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KarenMillen
Jersey Crepe Asymmetric Neckline Maxi Dress
- Fabric: Woven
- Neckline: Asymmetric
- Style: Maxi Dress
£69.00
£99.00
Plus
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KarenMillen
Plus Size Structured Crepe Forever Pleat Dress
- Length: Midi
- Occasion: Smart
- Style: Midi Dress
£175.20
£219.00
Plus
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KarenMillen
Plus Size Stripe Collared Woven Midi Dress
- Design: Stripes
- Detail: Stripes
- Style: Midi Dress
£143.20
£179.00
Plus
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KarenMillen
Plus Size Trim Detail Organdie Midi Shirt Dress
- Design: Plain
- Length: Midi
- Neckline: Collared
£135.20
£169.00
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KarenMillen
Velvet Sleeveless Body With Taffeta Drop Waist Maxi Dress
- Length: Maxi
- Neckline: Crew
- Sleeve length: Sleeveless
£54.00
£179.00
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KarenMillen
Jacquard Long Sleeve Hanky Hem Woven Maxi Dress
- Detail: Jacquard
- Fabric: Woven
- Length: Maxi
£64.00
£159.00
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KarenMillen
Plunge Ruched Twist Jersey Maxi Dress
- Design: Plain
- Detail: Ruched
- Sleeve length: Sleeveless
£57.00
£189.00
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KarenMillen
Crinkle Cold Shoulder Georgette Woven Maxi Dress
- Fabric: Woven
- Sleeve length: Long Sleeve
- Style: Maxi Dress
£64.00
£159.00
Petite
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KarenMillen
Petite Long Sleeve Jersey Maxi Dress
- Fabric: Jersey
- Neckline: High Neck
- Style: Maxi Dress
£48.00
£119.00
Petite
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KarenMillen
Petite Crystal Embellished Cowl Back Maxi Dress
- Detail: Plain
- Fabric: Jersey
- Length: Maxi
£104.00
£259.00
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KarenMillen
Jacquard Sleeveless Woven Maxi Dress
- Design: Jacquard
- Length: Maxi
- Style: Maxi Dress
£45.00
£149.00
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KarenMillen
Viscose Linen Floral Print Woven Prom Dress
- Design: Placement Print
- Neckline: Square
- Style: Maxi Dress
£175.20
£219.00
Plus
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KarenMillen
Plus Size Textured Satin Ruffle Detail Midi Dress
- Detail: Ruffle
- Sleeve length: Short Sleeve
- Style: Midi Dress
£119.20
£149.00
Showing 40 of 492