LONG PROM DRESSES, LONG FORMAL DRESSES, AND LONG PROM GOWNS

Browse our large selection of elegant long prom dresses, and find the perfect long formal dresses for your prom. At PromGirl you will find many long prom dresses and gowns from the top formal dress designers and manufacturers.  A long dress makes an elegant statement at any formal event whether it is prom, a formal dance, or wedding. Shop our huge selection of long dresses, and you will find long elegant dresses priced to fit every budget. Whatever the event you are looking for, we have your perfect long dress.

In Stock Buy Floor Length Sleeveless JVN by Jovani Dress at PromGirl
  • Black
  • White

High Neck Gown with Sheer Back JVN by Jovani

$398.00 $299.00 JO-JVN-JVN89652
In Stock Buy Strapless Floor Length Dress with Pleated Skirt at PromGirl
  • Jade

Long Strapless Prom Dress by Bee Darlin

$79.00 $39.00 BD-Q0159172
In Stock Buy Strapless Formal Dress at PromGirl
  • Royal
  • Burgundy
  • Olive
  • Gold
  • Plum
  • Black

Long Formal Gown 29283

$99.00 SF-29283
In Stock Buy Sleeveless Jumpsuit  at PromGirl
  • Black

Sleeveless Jumpsuit

$79.00 WC-SW975
In Stock Buy Long One Shoulder Dress at PromGirl
  • Red
  • Black
  • Plum

Long One Shoulder Dress

$189.00 DQ-8309
In Stock Buy Long Blue Dress by XOXO at PromGirl
  • Blue

Long Blue Prom Dress by XOXO

$79.00 XO-2133SSK1
In Stock Buy Long One Shoulder Dress at PromGirl
  • Black
  • Royal Blue

One Shoulder Formal Gown

$229.00 $79.00 DQ-8095
In Stock Buy Floor Length Strapless Sweetheart JVN by Jovani Dress at PromGirl
  • Royal
  • Red
  • Orange
  • Black

Strapless Evening Gown JVN by Jovani

$278.00 JO-JVN-JVN90365
In Stock Buy Floor Length Strapless Sweetheart Print Dress at PromGirl
  • Purple
  • Fuchsia

Strapless Print Prom Dress

$219.00 $69.00 DQ-8088
In Stock Buy Strapless Silver Dress at PromGirl
  • Silver (Silver/Black)
  • Plum (Plum/Black)
  • Cinnamon
  • Fuchsia/Black

Strapless Prom Gown

$169.00 NA-2554
In Stock Buy JVN by Jovani One Shoulder Rhinestone Embellished Floor Length Dress at PromGirl
  • White
  • Black
  • Coral

One Shoulder Gown JVN by Jovani

$358.00 JO-JVN-JVN91220
In Stock Buy Floor Length Strapless Pleated Dress at PromGirl
  • Purple

Strapless Purple Prom Gown with Open Back

$199.00 $39.00 SS-X27091MDU
In Stock Buy Lace Floor Length Strapless Sweetheart Dress at PromGirl
  • Eggplant
  • Champagne
  • Navy
  • Fuchsia
  • Red
  • Royal

Long Strapless Lace Dress

$99.00 DI-K0347B
In Stock Buy Long One Shoulder Dress at PromGirl
  • Black
  • Plum
  • Brown

One Shoulder Prom Gown

$99.00 DQ-8324
In Stock Buy One Shoulder Casual Print Dress at PromGirl
  • Ivory/Royal

One Shoulder Casual Print Dress

$69.00 $19.00 CT-2631BM1D
In Stock Buy Floor Length Strapless Empire Waist Dress at PromGirl
  • Light Yellow

Long Strapless Yellow Dress

$199.00 $39.00 SS-X28751TNY
In Stock Buy One Shoulder Floor Length Dress at PromGirl
  • Ivory

One Shoulder Floor Length Dress

$149.00 $49.00 MY-3725SK1N
In Stock Buy Floor Length Strapless Sweetheart JVN by Jovani Dress at PromGirl
  • Light Yellow

JVN by Jovani Strapless Prom Gown

$318.00 $199.00 JO-JVN-JVN92870
In Stock Buy Long Ruched One Shoulder Gown at PromGirl
  • Lemon Meringue
  • Maui Coral
  • Purple Passion

One Shoulder Gown by Flirt P4717

$398.00 $299.00 FL-P4717
In Stock Buy Floor Length Strapless Dress at PromGirl
  • Yucca

Floor Length Strapless Dress

$49.00 CT-9500M64F
In Stock Buy Floor Length Strapless Sweetheart Dress at PromGirl
  • Turquoise

Strapless Turquoise Blue Prom Dress

$189.00 $69.00 SS-X26641TD9
In Stock Buy Sleeveless Ruched V-Neck Dress at PromGirl
  • Royal

Sleeveless Ruched V-Neck Dress

$129.00 $64.00 BD-DY2611479
In Stock Buy Strapless Sweetheart Floor Length Dress at PromGirl
  • White
  • Royal
  • Mist Green

Beaded Strapless Prom Dress

$149.00 BD-067A104
In Stock Buy Floor Length Strapless Sweetheart Dress at PromGirl
  • Periwinkle/Nude/Ab

Bee Darlin Strapless Prom Gown

$139.00 $69.00 BD-DY586477
In Stock Buy JVN by Jovani Floor Length Strapless Sweetheart Sequin Dress at PromGirl
  • White/Nude
  • Black/Nude

Strapless Sequin Gown JVN by Jovani

$398.00 $299.00 JO-JVN-JVN88738
In Stock Buy High Low Halter Dress at PromGirl
  • Coral
  • Black
  • Mint
  • Turquoise
  • Purple

High Low Halter Dress

$99.00 DQ-8581
In Stock Buy Long One Shoulder Dress at PromGirl
  • Black
  • Gold

Long One Shoulder Dress

$169.00 DQ-8279
In Stock Buy Floor Length Strapless Dress at PromGirl
  • Neon Salmon
  • Electric Blue

Long Strapless Casual Dress

$49.00 $29.00 CT-9500M64D
In Stock Buy Full Length High Neck Lace Gown at PromGirl
  • Rose

Beaded Lace Gown by Tony Bowls

$550.00 TB-TBE11415
In Stock Buy Long Sleeveless Chevron Print Dress at PromGirl
  • Navy/Lime

Long Sleeveless Chevron Print Dress

$49.00 $29.00 EM-CFA-1472
In Stock Buy Floor Length Cap Sleeve Empire Waist JVN by Jovani Dress at PromGirl
  • Red
  • Navy
  • White

JVN by Jovani Long Cap Sleeve Evening Gown

$378.00 $199.00 JO-JVN-JVN93481
In Stock Buy High Low Sleeveless Dress at PromGirl
  • Jade
  • Black/Peach

High Low Sleeveless Dress

$69.00 DI-DH1005
In Stock Buy Floor Length Spaghetti Strap Dress at PromGirl
  • Black

Floor Length Spaghetti Strap Dress

$49.00 $34.00 JU-47244
In Stock Buy Long Sequin Prom Dress at PromGirl
  • Navy Blue
  • Gold
  • Silver

Sleeveless Sequin Gown

$169.00 DQ-8694
In Stock Buy Long Strapless Sweetheart Empire Waist Dress at PromGirl
  • White
  • Bright Purple

La Femme Designer Prom Gown

$278.00 $139.00 LF-18313
In Stock Buy Long Sleeveless Empire Waist Dress at PromGirl
  • Blue

Long Sleeveless Empire Waist Prom Dress

$129.00 $64.00 MY-6661ix1n
In Stock Buy Cap Sleeve Floor Length Lace Dress at PromGirl
  • Peach
  • Blue

Long Cap Sleeve Lace Dress by Morgan

$249.00 $99.00 MO-11809
* Products with an "in stock" banner have at least some size and color combinations ready to ship immediately. Available sizes and colors may be limited due to seasonality. Please read our complete availability policy for more information.