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 Dress at PromGirl
  • Black/Nude/Silver

Long Black Gown for Prom

$229.00 X-XS5844
In Stock Buy Floor Length Cap Sleeve Lace Dress at PromGirl
  • Mint/Silver
  • Coral/Silver

Long Lace Gown for Prom by Sequin Hearts

$149.00 $69.00 MY-6218xy1n
In Stock Buy Floor Length Sleeveless Dress at PromGirl
  • Red
  • Royal Blue
  • Champagne
  • Coral
  • Mint

Long Sleeveless Prom Dress

$249.00 $189.00 DQ-8681
In Stock Buy Floor Length Sleeveless Black V-Neck Dress at PromGirl
  • Black

Long Sleeveless Black Gown

$89.00 EM-CHM-1003-001
In Stock Buy Strapless Lace Mermaid Dress at PromGirl
  • Black
  • Fuchsia
  • Champagne
  • Royal
  • New Red

Strapless Lace Mermaid Dress

$99.00 $49.00 DI-13524L
In Stock Buy Strapless Formal Dress at PromGirl
  • Royal
  • Burgundy
  • Black
  • White

Long Formal Gown 29283

$99.00 SF-29283
In Stock Buy Floor Length V-Neck JVN by Jovani Dress at PromGirl
  • Navy

Long V-Neck JVN by Jovani Prom Dress

$318.00 $199.00 JO-JVN-JVN20381
In Stock Buy Long One Shoulder Dress at PromGirl
  • Red
  • Black

Long One Shoulder Dress

$189.00 DQ-8309
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 $249.00 JO-JVN-JVN89652
In Stock Buy Elegant Strapless Formal Gown at PromGirl
  • Purple
  • Brown(Chocolate)
  • Black

Strapless Formal Gown for Prom

$199.00 $99.00 DQ-8072
In Stock Buy Sleeveless JVN by Jovani Prom Dress  at PromGirl
  • Black
  • White

Sleeveless JVN by Jovani Prom Dress

$398.00 $199.00 JO-JVN-JVN21768
In Stock Buy Floor Length Strapless Sweetheart JVN by Jovani Dress at PromGirl
  • Royal
  • Red
  • Orange
  • Black
  • Blush

Strapless Evening Gown JVN by Jovani

$278.00 $189.00 JO-JVN-JVN90365
In Stock Buy Floor Length Sleeveless V-Neck Dress at PromGirl
  • Blue

Sleeveless Blue Prom Gown by LA Glo

$149.00 $75.00 LA-24817
In Stock Buy One Shoulder Ruched Dress at PromGirl
  • Royal
  • Aqua
  • Fuchsia
  • Gold
  • Magenta

Long One Shoulder Prom Dress

$149.00 $74.00 NA-2688
In Stock Buy Long Sleeve Mori Lee Dress at PromGirl
  • Vanilla/Gold

Long Sleeve Mori Lee Dress

$378.00 ML-97070
In Stock Buy Sleeveless Floor Length Lace Dress at PromGirl
  • Blush

Sleeveless Floor Length Lace Dress

$149.00 $74.00 JU-47631
In Stock Buy JVN by Jovani Long Strapless Sweetheart Lace Embellished Dress at PromGirl
  • Nude/White
  • Black/White

Strapless Long Prom Dress JVN by Jovani

$378.00 $249.00 JO-JVN-JVN91085
In Stock Buy Full Length Strapless Formal Gown at PromGirl
  • Gold
  • Purple
  • Fuchsia
  • Turquoise
  • Lime

Full Length Strapless Formal Gown

$189.00 $94.00 DQ-8116
In Stock Buy One Shoulder Floor Length Dress at PromGirl
  • Pink
  • Grey

One Shoulder Floor Length Dress

$79.00 $39.00 LP-22424
In Stock Buy JVN by Jovani One Shoulder Rhinestone Embellished Floor Length Dress at PromGirl
  • Black
  • White
  • Coral

One Shoulder Gown JVN by Jovani

$358.00 $269.00 JO-JVN-JVN91220
In Stock Buy Floor Length Sleeveless Illusion JVN by Jovani Dress at PromGirl
  • Black

Sleeveless Illusion JVN by Jovani Prom Dress

$278.00 $169.00 JO-JVN-JVN22445
In Stock Buy Floor Length Strapless Sweetheart Dress at PromGirl
  • Mint Green

Strapless Lace Up Gown

$199.00 NA-8121
In Stock Buy Floor Length Sleeveless V-Neck Dress at PromGirl
  • Lavender
  • Dusty Pink
  • Teal
  • Silver

Sleeveless V-Neck Long Prom Dress

$249.00 $124.00 SI-16111
In Stock Buy Sleeveless Floor Length V-Neck JVN by Jovani Dress at PromGirl
  • Pink
  • Black
  • Teal

Sleeveless Long V-Neck Gown from JVN by Jovani

$398.00 $269.00 JO-JVN-JVN99401
In Stock Buy Lace Floor Length Strapless Sweetheart Dress at PromGirl
  • Eggplant
  • Champagne
  • Fuchsia
  • Royal

Long Strapless Lace Dress

$129.00 $64.00 DI-K0347B
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 Long One Shoulder Prom Dress at PromGirl
  • Black/White

Long One Shoulder Prom Dress

$89.00 $49.00 DQ-9030
In Stock Buy Long One Shoulder Dress at PromGirl
  • Black
  • Plum
  • Brown

One Shoulder Prom Gown

$99.00 DQ-8324
In Stock Buy Floor Length Strapless Sweetheart Dress at PromGirl
  • Sky Blue
  • White

Long Beaded Strapless Sweetheart Dress

$249.00 $149.00 TI-GL-DL106
In Stock Buy Floor Length Strapless Dress with Embellished Waist at PromGirl
  • Ivory
  • Neon Hot Coral

Strapless Prom Gown by City Triangles

$149.00 $74.00 CT-8420DW3B
In Stock Buy Strapless Sweetheart Ombre Formal Gown at PromGirl
  • Jade

Open Back Prom Dress by La Femme

$398.00 $299.00 LF-18525
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 One Shoulder Dress at PromGirl
  • Royal Blue
  • Plum
  • Black
  • Dusty Rose
  • Red
  • Green

One Shoulder Evening Gown

$149.00 $74.00 DQ-8349
In Stock Buy Floor Length Strapless Gown at PromGirl
  • Orange/Pink

Floor Length Strapless Gown

$249.00 $124.00 DQ-8260
In Stock Buy One Shoulder Formal Dress at PromGirl
  • Purple
  • Fuchsia
  • Navy

One Shoulder Backless Evening Gown

$199.00 $99.00 DQ-8079
In Stock Buy Floor Length Sleeveless Dress at PromGirl
  • Beige
  • Pink (Blush)

Sleek Open Back Gown for Prom

$99.00 $49.00 TW-4066
In Stock Buy Strapless Floor Length Dress at PromGirl
  • Navy

Bead Strapless Gown by Sean Collection

$318.00 $199.00 SN-50511
In Stock Buy Two Piece Floor Length Lace Dress at PromGirl
  • Black/Silver

Two Piece Floor Length Lace Dress

$99.00 $49.00 SS-X31491HJL
In Stock Buy V-Neck Floor Length Sleeveless Dress at PromGirl
  • Light Blue

V-Neck Floor Length Sleeveless Dress

$149.00 $74.00 MY-2365SJ1S
In Stock Buy Floor Length Strapless Sweetheart Dress at PromGirl
  • Blush
  • Emerald
  • Black
  • Red

Corset Style Strapless Gown

$189.00 $129.00 DQ-8844
In Stock Buy Floor Length Strapless Sweetheart Dress at PromGirl
  • Red
  • Pink
  • Coral

Long Strapless Prom Gown

$179.00 DQ-8693
In Stock Buy One Shoulder Black Sequin Dress at PromGirl
  • Black
  • Royal Blue

One Shoulder Black Sequin Dress

$279.00 $139.00 DQ-8918
In Stock Buy High Neck Floor Length Sleeveless Dress at PromGirl
  • Ice Green

High Neck Floor Length Sleeveless Dress

$229.00 $139.00 MQ-7550167
In Stock Buy Sleeveless Floor Length V-Neck Dress at PromGirl
  • Coral

Sleeveless Floor Length V-Neck Dress

$199.00 $79.00 MY-2301SJ1S
In Stock Buy Floor Length Halter Prom Dress at PromGirl
  • Blush

Open Back Halter Prom Gown

$99.00 MY-6644SJ1S
In Stock Buy Sleeveless Ruched Prom Dress at PromGirl
  • Soft Aqua

Sleeveless Ruched Prom Dress

$179.00 $99.00 CT-8420NS4B
In Stock Buy Floor Length La Femme Prom Dress at PromGirl
  • Aquamarine
  • Lavender
  • Apricot

Floor Length La Femme Prom Dress 18989

$338.00 $249.00 LF-18989
In Stock Buy Two Piece Floor Length Jewel Embellished JVN by Jovani Dress at PromGirl
  • Black

Two Piece V-Neck Gown JVN by Jovani

$398.00 JO-JVN-JVN26306
In Stock Buy Strapless Sweetheart Floor Length Dress at PromGirl
  • Bright Cherry

Strapless Sweetheart Floor Length Dress

$149.00 $69.00 CT-9560QX8A
In Stock Buy High Neck A-Line Gown by Blush at PromGirl
  • Pool
  • Honeydew
  • Orchid

High Neck Beaded Gown by Blush 9917

$479.00 $350.00 BL-9917
In Stock Buy Floor Length One Shoulder Dress at PromGirl
  • Gunmetal

Floor Length One Shoulder Dress

$149.00 $59.00 MQ-808888
In Stock Buy JVN by Jovani Strapless Sweetheart Floor Length Dress at PromGirl
  • Light Peach

JVN by Jovani Strapless Floor Length Prom Dress

$358.00 $229.00 JO-JVN-JVN79063
In Stock Buy Long Embellished Sweetheart Gown at PromGirl
  • Watermelon
  • Seafoam
  • White
  • Black

Cut Out Prom Gown by La Femme 18602

$398.00 $189.00 LF-18602
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 Floor Length Sleeveless Jewel Embellished Dress at PromGirl
  • Nude
  • Aqua/Nude

Beaded Mermaid Prom Gown by Terani

$299.00 $199.00 TI-GL-P3117G
* 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.