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Long Sleeve Formal Dresses

Discover our collection of long sleeve formal dresses, where timeless elegance meets modern sophistication. Designed for evenings that call for refined style, these dresses offer coverage without compromise, blending graceful silhouettes with fashion-forward details. Longer sleeves bring a touch of modesty while adding an elevated, polished look that feels effortlessly stylish. From sweeping floor-length gowns for galas and black-tie events to long sleeve mini formal dresses perfect for cocktail parties or birthday celebrations, each piece is crafted with meticulous attention to fit and finish. Choose from rich jewel tones, classic blacks, and soft neutrals, alongside luxurious fabrics like satin, velvet, and crepe that move beautifully from ceremony to celebration. Whether you’re looking for a statement-making gown or a versatile formal dress you can wear season after season, this edit of long sleeve styles ensures sophistication for every occasion.

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favourite
Floral Tulle Balloon Sleeve Plunge Woven Maxi Dress
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KarenMillen

Floral Tulle Balloon Sleeve Plunge Woven Maxi Dress

  • Length: Maxi
  • Sleeve length: Long Sleeve
  • Style: Maxi Dress
$339.00
favourite
Tulle Layered Long Sleeve Maxi Dress
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KarenMillen

Tulle Layered Long Sleeve Maxi Dress

  • Detail: Plain
  • Sleeve length: Long Sleeve
  • Style: Maxi Dress
$359.00
favourite
Satin Viscose Soft Midi Dress
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KarenMillen

Satin Viscose Soft Midi Dress

  • Design: Plain
  • Detail: Plain
  • Fabric: Satin
$519.00
mint color ivory color
favourite
Compact Stretch Asymmetric Neckline Draped Midi Dress
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KarenMillen

Compact Stretch Asymmetric Neckline Draped Midi Dress

  • Fabric: Polyester
  • Length: Midi
  • Neckline: Asymmetric
$399.00
sage color yellow color
favourite
Ombre Crinkle Georgette Embellished Pleat Detail Midi Dress
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KarenMillen

Ombre Crinkle Georgette Embellished Pleat Detail Midi Dress

  • Design: Embellished
  • Fabric: Woven
  • Sleeve length: Long Sleeve
$599.00
favourite
Tailored Collared Long Sleeve Midi Dress
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KarenMillen

Tailored Collared Long Sleeve Midi Dress

  • Detail: Plain
  • Length: Midi
  • Style: Midi Dress
$399.00
ivory color cobalt color
favourite
Satin Viscose Printed Soft Midi Dress
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KarenMillen

Satin Viscose Printed Soft Midi Dress

  • Detail: Plain
  • Neckline: High Neck
  • Sleeve length: Long Sleeve
$519.00
favourite
Metallic Thread Printed Cold Shoulder Woven Maxi Dress
Tall
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KarenMillen

Metallic Thread Printed Cold Shoulder Woven Maxi Dress

  • Neckline: V Neck
  • Sleeve length: Long Sleeve
  • Style: Maxi Dress
$519.00
favourite
Embroidered Organdie Balloon Sleeve Woven Maxi Dress
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KarenMillen

Embroidered Organdie Balloon Sleeve Woven Maxi Dress

  • Fabric: Polyester
  • Length: Maxi
  • Neckline: Crew
$679.00
favourite
Petite Drapey Crepe Off The Shoulder Ruched Detail Fishtail Maxi Dress
Petite
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KarenMillen

Petite Drapey Crepe Off The Shoulder Ruched Detail Fishtail Maxi Dress

  • Detail: Ruched
  • Length: Maxi
  • Sleeve length: Long Sleeve
$299.00
favourite
Petite Satin Soft Midi Dress
Petite
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KarenMillen

Petite Satin Soft Midi Dress

  • Fabric: Satin
  • Length: Midi
  • Neckline: High Neck
$399.00
ivory color mint color
favourite
Guipure Lace High Neck Woven Mini Dress
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KarenMillen

Guipure Lace High Neck Woven Mini Dress

  • Length: Mini
  • Sleeve length: Long Sleeve
  • Style: Mini Dress
$359.00
favourite
Crystal Embellished Cowl Back Maxi Dress
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KarenMillen

Crystal Embellished Cowl Back Maxi Dress

  • Detail: Plain
  • Sleeve length: Long Sleeve
  • Style: Maxi Dress
$519.00
favourite
Soft Pleated Woven Kimono Sleeve Maxi Dress
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KarenMillen

Soft Pleated Woven Kimono Sleeve Maxi Dress

  • Length: Maxi
  • Sleeve length: Long Sleeve
  • Style: Midi Dress
$279.00
favourite
Blue Floral Off The Shoulder Shirred Woven Maxi Dress
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KarenMillen

Blue Floral Off The Shoulder Shirred Woven Maxi Dress

  • Detail: Floral
  • Neckline: Off the Shoulder
  • Style: Maxi Dress
$319.00
favourite
Kimono Sleeve Embellished Maxi Dress
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KarenMillen

Kimono Sleeve Embellished Maxi Dress

  • Fabric: Polyester
  • Length: Maxi
  • Style: Maxi Dress
$239.00 $599.00
favourite
Polka Dot Tulle Plunge Balloon Sleeve Maxi Dress
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KarenMillen

Polka Dot Tulle Plunge Balloon Sleeve Maxi Dress

  • Length: Maxi
  • Sleeve length: Long Sleeve
  • Style: Maxi Dress
$339.00
favourite
Drapey Crepe V Neck Back Sleeved Maxi Dress
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KarenMillen

Drapey Crepe V Neck Back Sleeved Maxi Dress

  • Fabric: Jersey
  • Sleeve length: Long Sleeve
  • Style: Maxi Dress
$279.00
favourite
Drape Sleeve Embellished Midaxi Dress
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KarenMillen

Drape Sleeve Embellished Midaxi Dress

  • Design: Fabric Interest
  • Detail: Embellished
  • Style: Midaxi Dress
$639.00
favourite
Tailored Belted Midi Shirt Dress
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KarenMillen

Tailored Belted Midi Shirt Dress

  • Length: Midi
  • Neckline: Collared
  • Style: Shirt Dress
$399.00
favourite
Premium Embellished Cape Maxi Dress
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KarenMillen

Premium Embellished Cape Maxi Dress

  • Design: Fabric Interest
  • Length: Maxi
  • Sleeve length: Long Sleeve
$939.00
favourite
Premium Beaded Embellished Woven Midaxi Cape Dress
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KarenMillen

Premium Beaded Embellished Woven Midaxi Cape Dress

  • Length: Maxi
  • Sleeve length: Long Sleeve
  • Style: Maxi Dress
$1099.00
cobalt color black color
favourite
Petite Guipure Lace High Neck Woven Mini Dress
Petite
View
KarenMillen

Petite Guipure Lace High Neck Woven Mini Dress

  • Length: Mini
  • Sleeve length: Long Sleeve
  • Style: Mini Dress
$359.00
favourite
Figure Form Bandage Knit Embellished Wide Sleeve Maxi Dress
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KarenMillen

Figure Form Bandage Knit Embellished Wide Sleeve Maxi Dress

  • Length: Maxi
  • Sleeve length: Long Sleeve
  • Style: Knitted Dress
$349.00 $499.00
navy color grey color
favourite
Drapey Crepe Off The Shoulder Ruched Detail Fishtail Maxi Dress
View
KarenMillen

Drapey Crepe Off The Shoulder Ruched Detail Fishtail Maxi Dress

  • Length: Maxi
  • Sleeve length: Long Sleeve
  • Style: Maxi Dress
$299.00
lemon color navy color red color
favourite
Ombre Floral Crinkle V Neck Georgette Draped Woven Maxi Dress
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KarenMillen

Ombre Floral Crinkle V Neck Georgette Draped Woven Maxi Dress

  • Design: Ombre
  • Detail: Ombre
  • Fabric: Woven
$379.00
favourite
Embellished Taffeta Woven Shirt Dress
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KarenMillen

Embellished Taffeta Woven Shirt Dress

  • Length: Maxi
  • Sleeve length: Long Sleeve
  • Style: Shirt Dress
$719.00
favourite
Mono Geo Silk Cotton Woven Shirt Dress
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KarenMillen

Mono Geo Silk Cotton Woven Shirt Dress

  • Length: Maxi
  • Sleeve length: Long Sleeve
  • Style: Maxi Dress
$479.00
favourite
Cold Shoulder 3D Floral Applique Woven Maxi Dress
View
KarenMillen

Cold Shoulder 3D Floral Applique Woven Maxi Dress

  • Length: Maxi
  • Occasion: Occasion
  • Style: Maxi Dress
$639.00
hot-pink color black color blush color
favourite
Plus Size Floral Woven Shirt Dress
Plus
View
KarenMillen

Plus Size Floral Woven Shirt Dress

  • Design: Patterned
  • Neckline: Sweetheart
  • Sleeve length: Long Sleeve
$479.00
mono color black color
favourite
Baroque Balloon Sleeve Maxi Dress
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KarenMillen

Baroque Balloon Sleeve Maxi Dress

  • Design: All Over Print
  • Detail: All Over Print
  • Sleeve length: Long Sleeve
$399.00
favourite
Premium Mirrored Crystal Embellished Woven Long Sleeve Column Dress
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KarenMillen

Premium Mirrored Crystal Embellished Woven Long Sleeve Column Dress

  • Length: Maxi
  • Neckline: Crew
  • Sleeve length: Long Sleeve
$259.00 $879.00
favourite
Placed Floral Embroidered Mesh Woven Belted Maxi Dress
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KarenMillen

Placed Floral Embroidered Mesh Woven Belted Maxi Dress

  • Detail: Belted
  • Sleeve length: Long Sleeve
  • Style: Maxi Dress
$289.00 $579.00
favourite
Petite Soft Pleated Woven Kimono Sleeve Maxi Dress
Petite
View
KarenMillen

Petite Soft Pleated Woven Kimono Sleeve Maxi Dress

  • Length: Maxi
  • Sleeve length: Long Sleeve
  • Style: Maxi Dress
$319.00
favourite
Tailored Lace up Back Detail Midi Dress
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KarenMillen

Tailored Lace up Back Detail Midi Dress

  • Detail: Plain
  • Fabric: Polyester
  • Sleeve length: Long Sleeve
$279.00
ivory color black color cobalt color
favourite
Voile Embroidered Cutwork Balloon Sleeve Woven Maxi Dress
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KarenMillen

Voile Embroidered Cutwork Balloon Sleeve Woven Maxi Dress

  • Length: Maxi
  • Sleeve length: Long Sleeve
  • Style: Maxi Dress
$599.00
favourite
Thigh High Split Embellished Woven Fringed Midi Dress
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KarenMillen

Thigh High Split Embellished Woven Fringed Midi Dress

  • Occasion: Occasion
  • SleeveLength: Long Sleeve
  • Style: Midi Dress
$279.00 $939.00
favourite
Hotfix Studded Long Sleeve Shirt Woven Maxi Dress
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KarenMillen

Hotfix Studded Long Sleeve Shirt Woven Maxi Dress

  • Neckline: Collared
  • Sleeve length: Long Sleeve
  • Style: Maxi Dress
$379.00
ivory color black color
favourite
Compact Stretch Embellished Trim Tailored Belted Mini Dress
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KarenMillen

Compact Stretch Embellished Trim Tailored Belted Mini Dress

  • Detail: Buttons
  • Fabric: Polyester
  • Sleeve length: Long Sleeve
$519.00
favourite
Garden Floral Viscose Georgette Satin Mix Maxi Dress
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KarenMillen

Garden Floral Viscose Georgette Satin Mix Maxi Dress

  • Length: Maxi
  • Sleeve length: Long Sleeve
  • Style: Maxi Dress
$219.00 $719.00
Showing 40 of 239
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