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 Strapless Dress at PromGirl
  • Electric Blue
  • Neon Salmon

Long Strapless Casual Dress

$49.00 $19.00 CT-9500M64D
In Stock Buy Long Sleeveless Chevron Print Dress at PromGirl
  • Navy/Multi

Long Sleeveless Chevron Print Dress

$29.00 $19.00 EM-CCX-1571-438
In Stock Buy Long Sleeveless Chevron Print Dress at PromGirl
  • Navy/Lime

Long Sleeveless Chevron Print Dress

$49.00 $19.00 EM-CFA-1472
In Stock Buy Strapless Glitter Peplum Dress at PromGirl
  • Coral

Strapless Glitter Peplum Dress

$129.00 $29.00 EM-CHL-1023-680
In Stock Buy Floor Length Spaghetti Strap Dress at PromGirl
  • Black

Floor Length Spaghetti Strap Dress

$49.00 $29.00 JU-47244
In Stock Buy Floor Length Scoop Neck Dress at PromGirl
  • Ivory
  • Blue

Floor Length Scoop Neck Dress

$69.00 $34.00 LP-22318
In Stock Buy Strapless Print Maxi Dress at PromGirl
  • Orange/Green

Strapless Print Maxi Dress

$39.00 CT-2848UT4B
In Stock Buy Long Halter Print Maxi Dress at PromGirl
  • Coral/Blue

Long Halter Print Maxi Dress

$39.00 CT-2957QJ2F
In Stock Buy Sleeveless Print Maxi Dress at PromGirl
  • Off White/Indigo

Sleeveless Print Maxi Dress

$39.00 CT-2770AX2M
In Stock Buy Long Strapless Print Maxi Dress at PromGirl
  • Navy/Ivory

Long Strapless Print Maxi Dress

$39.00 EM-CBZ-2042-427
In Stock Buy Strapless Chevron Print Maxi Dress at PromGirl
  • Navy/Coral

Strapless Chevron Print Maxi Dress

$39.00 EM-CBZ-1539-436
In Stock Buy Floor Length Strapless Sweetheart Dress at PromGirl
  • Deep Blue Ocean

Long Strapless Blue Dress for Prom

$99.00 $49.00 CT-8420NN3E
In Stock Buy Long Blue Dress by XOXO at PromGirl
  • Blue

Long Blue Prom Dress by XOXO

$129.00 $49.00 XO-2133SSK1
In Stock Buy Floor Length Open Back Lace Gown at PromGirl
  • Coral

Floor Length Open Back Lace Gown

$149.00 $49.00 JU-47705
In Stock Buy Floor Length Strapless Sweetheart Dress at PromGirl
  • Turquoise

Strapless Turquoise Blue Prom Dress

$189.00 $49.00 SS-X26641TD9
In Stock Buy Long Sleeveless Empire Waist Dress at PromGirl
  • Blue

Long Sleeveless Empire Waist Prom Dress

$99.00 $49.00 MY-6661ix1n
In Stock Buy Floor Length Strapless Dress at PromGirl
  • Black
  • Fuchsia

Strapless Lace Gown with Bow

$99.00 $49.00 DI-3586
In Stock Buy One Shoulder Floor Length Dress at PromGirl
  • Royal Blue

One Shoulder Prom Gown by Ruby Rox

$99.00 $49.00 RR-CGX2207i
In Stock Buy Classic Long Strapless Sweetheart Gown at PromGirl
  • Plum
  • Royal

Classic Long Strapless Gown

$99.00 $50.00 PO-5986
Buy Floor Length Sleeveless La Femme Prom Dress at PromGirl
  • Gold

Gold Dress by La Femme 13191

$378.00 $58.00 LF-13191
* 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.