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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KarenMillen
Crystal Embellished Ruched Detail Sleeveless Midi Dress
- Length: Midi
- Neckline: Crew
- Style: Midi Dress
$136.00
$394.00
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KarenMillen
Drapey Crepe Maxi Dress With Gathered Cape Detail
- Design: Plain
- Detail: Ruched
- Sleeve length: Sleeveless
$328.00
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KarenMillen
Twist Detail Studded Jersey Maxi Dress
- Detail: Studded
- Fabric: Jersey
- Style: Maxi Dress
$394.00
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KarenMillen
Crystal Embellished Ruched Detail Sleeveless Midi Dress
- Detail: Embellished
- Neckline: Crew
- Style: Midi Dress
$117.00
$394.00
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KarenMillen
Drapey Crepe Ruched Detail Maxi Dress
- Design: Plain
- Neckline: Cowl
- Style: Maxi Dress
$328.00
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KarenMillen
Scoop Neck Jersey Cotton Mix Maxi Dress
- Design: Plain
- Fabric: Jersey
- Neckline: Scoop
$262.00
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KarenMillen
Studded Ponte Jersey Midi Dress
- Detail: Embellished
- Length: Midi
- Style: Midi Dress
$284.00
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KarenMillen
Drapey Crepe Off The Shoulder Ruched Detail Fishtail Maxi Dress
- Detail: Ruched
- Fabric: Acetate slinky
- Length: Maxi
$328.00
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KarenMillen
Embellished Figure Form Bandage And Chiffon Sleeve Midi Dress
- Design: Fabric Interest
- Fabric: Polyester
- Style: Knitted Dress
$103.00
$416.00
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KarenMillen
Cotton Ponte Jersey Ruffle Hem Maxi Dress
- Detail: Ruffle
- Neckline: Scoop
- Style: Maxi Dress
$262.00
Plus
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KarenMillen
Plus Size Scenic Print Cotton Sateen Shirt Dress
- Fabric: Woven
- Sleeve length: Sleeveless
- Style: Shirt Dress
$328.00
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KarenMillen
Premium Ruched Long Sleeved Jersey Maxi Dress
- Fabric: Polyester
- Neckline: Crew
- Style: Maxi Dress
$328.00
Plus
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KarenMillen
Plus Size Twill Collared Woven Maxi Dress
- Length: Maxi
- Neckline: Collared
- Sleeve length: Long Sleeve
$306.00
Petite
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KarenMillen
Petite Scoop Neck Jersey Cotton Mix Maxi Dress
- Detail: Plain
- Length: Maxi
- Sleeve length: Strappy
$284.00
Plus
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KarenMillen
Plus Size Blurred Floral Cross Detail Tulle Maxi Dress
- Design: Floral
- Fabric: Woven
- Length: Maxi
$372.00
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KarenMillen
Premium Slinky Crepe Embellished Cut Out Maxi Dress
- Design: Embellished
- Fabric: Cotton
- Neckline: Asymmetric
$90.00
$306.00
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KarenMillen
Velvet Bardot Woven Prom Midaxi Dress With Taffeta Bow
- Neckline: Bardot
- Sleeve length: Sleeveless
- Style: Midaxi Dress
$438.00
Petite
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KarenMillen
Petite Forever Ponte And Georgette Jersey Pleated Maxi Dress
- Detail: Pleated
- Neckline: Crew
- Sleeve length: Sleeveless
$306.00
Petite
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KarenMillen
Petite Crystal Embellished Tie Detail Halter Neck Maxi Dress
- Design: Plain
- Detail: Embellished
- Length: Maxi
$438.00
Petite
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KarenMillen
Petite Drapey Crepe Maxi Dress With Gathered Cape Detail
- Length: Maxi
- Neckline: Crew
- Style: Maxi Dress
$328.00
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KarenMillen
Long Sleeve Jersey Maxi Dress
- Design: Plain
- Detail: Plain
- Fabric: Jersey
$90.00
$262.00
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KarenMillen
Crystal Embellished Cutwork Cape Detail Woven Maxi Dress
- Detail: Embellished
- Neckline: High Neck
- Style: Maxi Dress
$202.00
$812.00
Petite
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KarenMillen
Petite Drapey Crepe Ruched Detail Maxi Dress
- Design: Plain
- Fabric: Acetate slinky
- Length: Maxi
$328.00
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KarenMillen
Viscose Georgette Cape Sleeve Ruffle Woven Maxi Dress
- Design: Plain
- Detail: Ruffle
- Neckline: Round Neck
$372.00
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KarenMillen
Cold Shoulder 3D Floral Applique Woven Maxi Dress
- Length: Maxi
- Neckline: High Neck
- Style: Maxi Dress
$244.00
$702.00
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KarenMillen
Compact Stretch Diamante Trim Detail Column Dress
- Detail: Embellished
- Neckline: High Neck
- Sleeve length: Sleeveless
$548.00
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KarenMillen
Curve Sequin Belted Full Midi Dress
- Detail: Sequin
- Length: Midi
- Neckline: Square
$438.00
Plus
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KarenMillen
Plus Size Trim Tailored Midi Pencil Dress
- Length: Midi
- Neckline: V Neck
- Style: Pencil Dress
$526.00
Plus
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KarenMillen
Plus Size Viscose Georgette Drop Hem Animal Print Woven Halterneck Maxi Dress
- Design: Animal
- Detail: All Over Print
- Style: Maxi Dress
$438.00
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KarenMillen
Crystal Embellished Woven Plunge Detail Maxi Dress
- Detail: Embellished
- Fabric: Woven
- Sleeve length: Long Sleeve
$235.00
$790.00
Plus
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KarenMillen
Plus Size Double Breasted Belted Tipped Tailored Midi Dress
- Fabric: Polyester
- Neckline: Collared
- Sleeve length: Sleeveless
$504.00
Plus
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KarenMillen
Plus Size Sequin Halter Neck Hanky Hem Maxi Dress
- Design: Plain
- Neckline: Halterneck
- Style: Maxi Dress
$372.00
Tall
Plus
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KarenMillen
Plus Size Puff Sleeve Metallic Textured Midi Dress
- Design: Metallic
- Neckline: Round Neck
- Sleeve length: Short Sleeve
$284.00
Plus
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KarenMillen
Plus Size Multi Fluid Stripe Cotton Mix Woven Halter Dress
- Design: Stripes
- Detail: All Over Print
- Fabric: Woven
$372.00
Plus
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KarenMillen
Plus Size Check Tailored Dress
- Design: Check
- Neckline: Asymmetric
- Style: Tailored Dress
$438.00
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KarenMillen
Jersey Crepe Asymmetric Neckline Maxi Dress
- Detail: Asymmetric
- Neckline: Asymmetric
- Sleeve length: Sleeveless
$75.00
$218.00
Plus
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KarenMillen
Plus Size Viscose Georgette Rosette Ruffle Halterneck Maxi Dress
- Detail: Ruffle
- Length: Maxi
- Style: Maxi Dress
$416.00
Plus
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KarenMillen
Plus Size Forever Structured Crepe Pleat Dress
- Fabric: Woven
- Length: Midi
- Neckline: V Neck
$482.00
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KarenMillen
Strappy Pleated Maxi Dress
- Neckline: Strappy
- Sleeve length: Strappy
- Style: Maxi Dress
$106.00
$306.00
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KarenMillen
Crinkle Cold Shoulder Georgette Woven Maxi Dress
- Design: Plain
- Length: Maxi
- Style: Maxi Dress
$103.00
$350.00
Showing 40 of 497