Mermaid Dresses

Looking for a long evening gown or prom dress to show off your curves? Step into the 2015 season in one of these sexy mermaid style formal dresses. This is a sleek and feminine style dress that hugs your curves. Mermaid evening gowns follow your silhouette to the mid thigh or calf and then flare out at the bottom. PromGirl has this elegant style available in strapless evening gowns, halter top formal dresses, and designer long evening dresses for prom or pageant.

In Stock Buy Strapless Lace Mermaid Dress at PromGirl
  • Black
  • Fuchsia
  • Champagne
  • Royal
  • New Red
  • Navy

Strapless Lace Mermaid Dress

$99.00 $49.00 DI-13524L
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 Floor Length One Shoulder Dress at PromGirl
  • Gunmetal

Floor Length One Shoulder Dress

$149.00 $59.00 MQ-808888
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 Strapless Sweetheart Floor Length Dress at PromGirl
  • Bright Cherry

Strapless Sweetheart Floor Length Dress

$149.00 $69.00 CT-9560QX8A
In Stock Buy Floor Length Hot Pink Prom Dress at PromGirl
  • Hot Pink

Floor Length Hot Pink Prom Dress

$199.00 $69.00 HL-211s67400
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-6218xy1nm
In Stock Buy Ruched One Shoulder Floor Length Dress at PromGirl
  • Platinum

Ruched One Shoulder Floor Length Dress

$148.00 $69.00 HOW-PM-22377
In Stock Buy Floor Length Strapless Print Dress at PromGirl
  • Blue/White

Floor Length Strapless Print Dress

$149.00 $74.00 JU-47614
In Stock Buy Floor Length Lace Halter Dress at PromGirl
  • Black/Nude

Floor Length Lace Halter Dress

$149.00 $89.00 MO-12024
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 Sleeveless V-Neck Dress at PromGirl
  • Black

Floor Length Sleeveless V-Neck Dress

$198.00 $99.00 CD-GL-G218
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 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 Halter Dress at PromGirl
  • Royal/Silver

Floor Length Halter Dress

$199.00 $99.00 BN-55239
In Stock Buy Elegant Strapless Formal Gown at PromGirl
  • Purple
  • Brown(Chocolate)
  • Black

Strapless Brown Formal Gown

$199.00 $99.00 DQ-8072br
In Stock Buy Strapless Sweetheart Mermaid Sequin Dress at PromGirl
  • Champagne
  • Olive
  • Pink

Strapless Sequin Mermaid Gown

$249.00 $124.00 DQ-8646
In Stock Buy Floor Length Jewel Embellished Dress at PromGirl
  • Black

Floor Length Jewel Embellished Dress

$249.00 $124.00 X-XS5344
In Stock Buy Floor Length Strapless Sweetheart Dress at PromGirl
  • Black
  • Green

Strapless Sequin Mermaid Gown

$198.00 $139.00 DQ-8440
In Stock Buy Floor Length Lace Dress by Swing Prom at PromGirl
  • Red

Floor Length Lace Dress by Swing Prom

$278.00 $139.00 SSD-3053
In Stock Buy Lace Floor Length Sleeveless Dress at PromGirl
  • Black/Nude

Lace Floor Length Sleeveless Dress

$289.00 $144.00 BA-A15432
In Stock Buy Two Piece Studio 17 Prom Dress at PromGirl
  • Pink Multi

Two Piece Studio 17 Prom Dress

$308.00 $149.00 ST-12499
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 JVN by Jovani Illusion Prom Dress at PromGirl
  • Plum

JVN by Jovani Illusion Prom Dress

$258.00 $169.00 JO-JVN-JVN21032
In Stock Buy Xcite Long Strapless Beaded Dress at PromGirl
  • Silver/Nude
  • Aqua/Lilac

Xcite Long Strapless Beaded Dress

$338.00 $169.00 XC-30543
In Stock Buy Blush High Neck Formal Gown at PromGirl
  • Black

Blush High Neck Formal Gown

$379.00 $189.00 BL-9972
In Stock Buy Long High Neck Leaf Applique Dress at PromGirl
  • Coral

Long High Neck Leaf Applique Dress

$378.00 $189.00 SH-9711
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
In Stock Buy Long V-neck Prom Dress by Xcite at PromGirl
  • Red
  • Royal
  • Black

Long V-neck Prom Dress by Xcite

$398.00 $199.00 XC-30539
In Stock Buy V-Neck Lace Floor Length Dress at PromGirl
  • Lavender
  • Aqua

V-Neck Lace Floor Length Dress

$398.00 $199.00 MM-14832
In Stock Buy Two Piece Madison James Prom Dress at PromGirl
  • Blush
  • Black

Two Piece Madison James Prom Dress

$418.00 $209.00 NM-15-102
In Stock Buy Floor Length High Neck Dress by Terani at PromGirl
  • Aqua/Nude

Floor Length High Neck Dress by Terani

$429.00 $214.00 TI-P0108
In Stock Buy Long V-Neck Mermaid Gown by Panoply at PromGirl
  • Peach
  • Turquoise

Long V-Neck Mermaid Gown by Panoply

$468.00 $234.00 PA-14696
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 $249.00 JO-JVN-JVN26306
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 Long Beaded Mermaid Gown by Panoply at PromGirl
  • Coral/Nude

Long Beaded Mermaid Gown by Panoply

$548.00 $269.00 PA-14666
In Stock Buy Long Illusion Lace Prom Dress at PromGirl
  • Black/Blue

Long Illusion Lace Prom Dress

$340.00 $270.00 DJ-926
In Stock Buy Off The Shoulder Lace La Femme Dress at PromGirl
  • Navy

Off The Shoulder Lace La Femme Dress

$550.00 $275.00 LF-19440
In Stock Buy Long Lace High Neck Gown by La Femme at PromGirl
  • Indigo
  • Hot Fuchsia

Long Lace High Neck Gown by La Femme

$558.00 $279.00 LF-21389
In Stock Buy Floor Length Sleeveless Lace Embellished JVN by Jovani Dress at PromGirl
  • Nude/Red

Lace V-Neck Sleeveless Gown JVN by Jovani

$398.00 $299.00 JO-JVN-JVN92239
In Stock Buy Open Back Floor Length Lace Dress by La Femme at PromGirl
  • Ivory
  • Navy

Lace Mermaid Gown by La Femme 20117

$498.00 $299.00 LF-20117-v
In Stock Buy Two Piece Long Prom Dress by Mori Lee at PromGirl
  • Black

Two Piece Long Prom Dress by Mori Lee

$398.00 $318.00 ML-97004
In Stock Buy Long Sleeve Alyce Prom Dress  at PromGirl
  • Black

Long Sleeve Alyce Prom Dress

$398.00 $318.00 AL-2411
In Stock Buy La Femme Two Piece Lace Dress at PromGirl
  • Powder Blue
  • Cotton Candy Pink

La Femme Two Piece Lace Dress

$638.00 $319.00 LF-21087
In Stock Buy Floor Length Open Back Gown by Panoply at PromGirl
  • Navy/Nude

Floor Length Open Back Gown by Panoply

$460.00 $365.00 PA-14699
In Stock Buy Floor Length Lace Dress by La Femme at PromGirl
  • White

Floor Length Lace Dress by La Femme

$478.00 $382.00 LF-21399
In Stock Buy Long Open Back Formal Gown by Panoply at PromGirl
  • Sapphire

Long Open Back Formal Gown by Panoply

$488.00 $390.00 PA-44242
In Stock Buy Spaghetti Strap Mori Lee Prom Dress at PromGirl
  • Black/Nude

Spaghetti Strap Mori Lee Prom Dress

$498.00 $398.00 ML-97104
In Stock Buy Two Piece Lace Dress by Mori Lee at PromGirl
  • Bright Coral

Two Piece Lace Dress by Mori Lee

$498.00 $398.00 ML-97085
In Stock Buy Long V-neck La Femme Prom Dress at PromGirl
  • White/Nude
  • Black/Nude

Long V-neck La Femme Prom Dress

$578.00 $462.00 LF-21105
In Stock Buy Long Strapless Lace Formal Gown at PromGirl
  • Green/Nude
  • Melon/Nude

Long Strapless Lace Formal Gown

$680.00 $540.00 SH-11084
In Stock Buy Empire Waist Long Dress by Tarik Ediz at PromGirl
  • Navy

Empire Waist Long Dress by Tarik Ediz

$980.00 $780.00 TD-92478
In Stock Buy Long One Sleeve Formal Gown by Tarik Ediz at PromGirl
  • Red

Long One Sleeve Formal Gown by Tarik Ediz

$1,260.00 $1,000.00 TD-92505
* 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.