Sweetheart Formal Gowns and Party Dresses

The PromGirl formal dress collection features both short prom and party dresses and long formal evening gowns with sweetheart necklines. This style of dress features a neckline with two curved edges resembling the shape of a heart. The curve can be sweet and alluring with a small opening or daring and sexy in a low cut style. You will find here halter top dresses, elegant long prom dresses, sweet sixteen party dresses, or sparkling cocktail dresses and little black dresses for the holidays all with sweetheart neckline that are feminine and chic. Theses are dresses you'll want to wear again and again and are sure to become a favorite in any girl's closet. 

In Stock Buy Short Lace Strapless Sweetheart Lace Dress at PromGirl
  • Coral
  • Light Teal
  • New Red

Short Lace Strapless Dress

$119.00 DI-JM1968
In Stock Buy Short Strapless Sweetheart Dress at PromGirl
  • White
  • Peach
  • Mint

Short Strapless Dress

$69.00 MT-MD-3727-3
In Stock Buy Floor Length Strapless Sweetheart Dress at PromGirl
  • Red
  • Pink
  • Coral

Long Strapless Prom Gown

$179.00 DQ-8693
In Stock Buy Short Strapless Ruffled Dress at PromGirl
  • Light Blue
  • Light Pink

Short Strapless Prom Dress by Alyce

$138.00 $89.00 AL-3545
In Stock Buy High Low Sparkling Strapless Dress at PromGirl
  • Navy

High Low Sparkling Strapless Dress

$99.00 $49.00 MY-6103gj1n
In Stock Buy Short One Shoulder Tulle Dress at PromGirl
  • Turquoise
  • Fuchsia

One Shoulder Party Dress

$149.00 $59.00 DQ-8030
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 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 Floor Length Dress at PromGirl
  • Navy

Bead Strapless Gown by Sean Collection

$318.00 $199.00 SN-50511
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 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 Strapless Sweetheart Dress at PromGirl
  • Blush
  • Emerald
  • Red

Corset Style Strapless Gown

$189.00 $129.00 DQ-8844
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 One Shoulder Prom Dress at PromGirl
  • White
  • Pink
  • Teal
  • Aqua
  • Eggplant

White Evening Gown by La Femme 15361

$298.00 $129.00 LF-15361
In Stock Buy Short Cap Sleeve Lace Dress at PromGirl
  • Royal

Short Cap Sleeve Lace Dress

$59.00 AS-i252956B2
In Stock Buy Short Strapless Sweetheart White Dress at PromGirl
  • White

Short Strapless White Dress

$90.00 MT-MD-5533
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 Short Strapless Sweetheart Dress  at PromGirl
  • Mint
  • Coral
  • Silver
  • Tiffany
  • Pink

Short Strapless Prom Dress

$139.00 FB-GS1139
In Stock Buy Strapless Sweetheart Floor Length Dress at PromGirl
  • Lilac

Strapless Sweetheart Floor Length Dress

$99.00 $59.00 MY-8341GG1S
In Stock Buy Short Strapless Sweetheart Dress at PromGirl
  • Coral/White
  • Black/Fuchsia
  • Black/Purple
  • Black/Teal

Strapless Short Party Dress

$149.00 FB-GS1055
In Stock Buy Short Strapless Sweetheart Sequin Dress at PromGirl
  • Navy/Silver

Short Strapless Sweetheart Sequin Dress

$79.00 $39.00 RR-GNN12458I
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 Strapless Ruched Pink Party Dress at PromGirl
  • Pink
  • Light Teal
  • Red

Strapless Ruched Party Dress

$69.00 $34.00 DI-JM1363
In Stock Buy Short Sleeveless Party Dress at PromGirl
  • White/Navy

Short Sleeveless Party Dress

$49.00 MD-D20155AHA
In Stock Buy Floor Length Strapless Sweetheart Dress at PromGirl
  • Mint Green

Strapless Lace Up Gown

$199.00 NA-8121
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 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 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 High Low Strapless Sweetheart Dress at PromGirl
  • Navy/Silver

High Low Strapless Sweetheart Dress

$79.00 $39.00 RR-GPJ12458I
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 Full Length Strapless Formal Gown at PromGirl
  • Gold
  • Purple
  • Fuchsia
  • Turquoise
  • Lime

Full Length Strapless Formal Gown

$189.00 $94.00 DQ-8116
* 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.