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 Gold Foil Print Dress at PromGirl
  • Gold

Strapless Foil Print Dress

$39.00 $19.00 CL-D40145
In Stock Buy Short Strapless Sweetheart Polka Dot Dress at PromGirl
  • Black/White

Short Strapless Sweetheart Polka Dot Dress

$39.00 $19.00 EM-BCA-1704-020
In Stock Buy Short Strapless Sweetheart Dress at PromGirl
  • Green/Red

Short Strapless Sweetheart Dress

$49.00 $24.00 CT-2794BG2F
In Stock Buy Short Strapless Sweetheart Black Dress at PromGirl
  • Black

Short Strapless Sweetheart Black Dress

$49.00 $24.00 CCC-6P8263
In Stock Buy Short Strapless Sweetheart Print Dress at PromGirl
  • White/Neon Pink

Short Strapless Sweetheart Print Dress

$49.00 $24.00 CT-4326DT2A
In Stock Buy Short Strapless Sweetheart Print Dress at PromGirl
  • Black/White

Short Strapless Sweetheart Print Dress

$49.00 $24.00 AS-i796661z8
In Stock Buy Short Strapless Lace Summer Dress at PromGirl
  • Peach

Short Strapless Lace Dress

$29.00 TR-D30160
In Stock Buy Short Sleeveless Dress at PromGirl
  • Black
  • Royal Blue
  • Coral

Short Sleeveless Dress

$29.00 CCC-6C9295
In Stock Buy Strapless Semi Formal Dress at PromGirl
  • Taupe

Strapless Semi Formal Dress

$29.00 MD-D11005GGP
In Stock Buy Short Strapless Lace Dress at PromGirl
  • Peach

Short Strapless Lace Dress

$29.00 TR-D30160i
In Stock Buy Short Striped Spaghetti Strap Dress at PromGirl
  • Coral/Coral

Short Striped Spaghetti Strap Dress

$69.00 $29.00 BD-HX1914305
In Stock Buy Short Strapless Sweetheart Dress at PromGirl
  • Fuchsia

Short Strapless Sweetheart Dress

$59.00 $29.00 WC-K1842
In Stock Buy Strapless Sweetheart Short Dress by XOXO at PromGirl
  • Cobalt

Strapless Blue Cocktail Dress

$79.00 $29.00 XO-2523ST11
In Stock Buy Short Strapless Sweetheart Dress at PromGirl
  • Royal/Black

Short Strapless Sweetheart Dress

$69.00 $34.00 MQ-700985
In Stock Buy Short Strapless Sweetheart Dress at PromGirl
  • Ivory/Black

Short Strapless Sweetheart Dress

$69.00 $34.00 IM-5322-0161C
In Stock Buy Short Strapless Sweetheart Dress at PromGirl
  • Black/Black/Nude

Short Strapless Sweetheart Dress

$39.00 EM-BFB-1027-028
In Stock Buy Short Strapless Sweetheart Dress at PromGirl
  • Ivory

Short Strapless Dress

$39.00 MD-D10281XXV
In Stock Buy High Low Sparkling Strapless Dress at PromGirl
  • Navy

High Low Sparkling Strapless Dress

$99.00 $39.00 MY-6103gj1n
In Stock Buy Short Strapless Dress at PromGirl
  • Black

Short Strapless Dress

$79.00 $39.00 MT-MD-3727b
In Stock Buy Short White Strapless Sweetheart at PromGirl
  • Black

Short White Strapless Dress

$79.00 $39.00 MT-MD-3727
In Stock Buy Short One Shoulder Dress at PromGirl
  • Magenta
  • Royal

Short One Shoulder Dress

$59.00 $39.00 KI-9257
In Stock Buy High Low Strapless Dress at PromGirl
  • Purple
  • Hot Pink

High Low Strapless Dress

$79.00 $39.00 MY-6103XY1N
In Stock Buy High Low Strapless Dress at PromGirl
  • Jade

High Low Strapless Dress for Homecoming

$79.00 $39.00 MY-2099sj1s
In Stock Buy Short Strapless Sweetheart Dress at PromGirl
  • Cream/Dust Slate/Cream

Short Strapless Sweetheart Dress

$89.00 $44.00 BD-7DFC263
In Stock Buy Short Sexy Ruched Dress at PromGirl
  • Black
  • Red

Sexy Homecoming Dress by Jasz

$198.00 $45.00 JZ-4475
In Stock Buy High Low Strapless Sweetheart Dress at PromGirl
  • Coral
  • Black
  • White

High Low Strapless Party Dress

$99.00 $49.00 BD-0676361
In Stock Buy Short Strapless Sweetheart Ombre Dress at PromGirl
  • Purple/Raspberry

Short Strapless Sweetheart Ombre Dress

$99.00 $49.00 MY-6940OS1P
In Stock Buy Short Spaghetti Strap Black Dress at PromGirl
  • Black

Short Spaghetti Strap Black Dress

$49.00 EM-DLK-1027-001
In Stock Buy Short Strapless Dress at PromGirl
  • Purple
  • Black
  • Royal

Short Strapless Dress

$49.00 TW-3922
In Stock Buy Strapless High Low Dress at PromGirl
  • Coral
  • Black
  • White

High Low Strapless White Dress

$99.00 $49.00 BD-0676361w
In Stock Buy Short Black Dress by Tempation at PromGirl
  • Black

Short Black Dress by Temptation

$158.00 $49.00 TE-2013
In Stock Buy Short Strapless Sweetheart Dress at PromGirl
  • Gunmetal/Light Silver

Short Strapless Sweetheart Dress

$99.00 $49.00 MQ-3605261
In Stock Buy High Low Strapless Sweetheart Dress at PromGirl
  • Blush

High Low Strapless Sweetheart Dress

$99.00 $49.00 IM-5081-0157C
In Stock Buy Short Strapless Sweetheart Empire Waist Dress at PromGirl
  • Mint

Strapless Short Prom Dress

$129.00 $49.00 BD-I0791571
In Stock Buy Short Strapless Dress at PromGirl
  • Ivory/Lipstick

Short Strapless Dress

$59.00 LA-23370
In Stock Buy High Low Strapless Sweetheart Dress at PromGirl
  • Seafoam/Yellow/Ab

Strapless High Low Dress for Prom

$199.00 $65.00 BD-DY586433
In Stock Buy Short Strapless Sweetheart Dress at PromGirl
  • White

Short Strapless Dress

$69.00 MT-MD-3727-3
In Stock Buy Short Strapless Ruffled Dress at PromGirl
  • Light Blue
  • Light Pink

Short Strapless Prom Dress by Alyce

$138.00 $69.00 AL-3545
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 Floor Length Strapless Sweetheart Dress at PromGirl
  • Periwinkle/Nude/Ab

Bee Darlin Strapless Prom Gown

$139.00 $69.00 BD-DY586477
In Stock Buy Short Sparkling Spaghetti Strap Dress at PromGirl
  • White/Silver

Short Sparkling Spaghetti Strap Dress

$149.00 $69.00 HL-201C51330
In Stock Buy Long Strapless Sweetheart Blue Ombre Dress at PromGirl
  • Royal/Turquoise

Long Strapless Sweetheart Blue Ombre Dress

$149.00 $74.00 JU-ON-643347i
In Stock Buy Short Strapless Sweetheart Dress at PromGirl
  • Royal

Short Strapless Sweetheart Dress

$149.00 $74.00 FB-GS1155
In Stock Buy Floor Length Strapless Ruffled Prom Dress at PromGirl
  • Seafoam

Long Ruffled Prom Dress by LA Glo

$199.00 $75.00 LA-23302
In Stock Buy Strapless High Low Dress at PromGirl
  • Ivory

Strapless High Low Dress

$79.00 MY-6103XX1N
In Stock Buy Short Strapless Empire Waist Dress at PromGirl
  • Seafoam

Short Strapless Black Dress

$79.00 MT-MD-5707
In Stock Buy Floor Length Strapless Sweetheart Ruched Dress at PromGirl
  • Peacock

Strapless Gown by Mori Lee 20416

$162.00 $81.00 ML-20416
In Stock Buy Short Strapless Sweetheart White Dress at PromGirl
  • White
  • Pink
  • Black

Short Strapless White Dress

$90.00 MT-MD-5533
In Stock Buy Elegant Short Turquoise Dress at PromGirl
  • Nude
  • Turquoise
  • Pink
  • Black
  • Fuchsia

Elegant Short Turquoise Dress

$190.00 $95.00 DJ-7521t
In Stock Buy One Shoulder Sexy Atria Dress at PromGirl
  • Turquoise

Atria One Shoulder Homecoming Dress

$194.00 $97.00 AT-7008
In Stock Buy Lace Floor Length Strapless Sweetheart Dress at PromGirl
  • Eggplant
  • Champagne
  • Navy
  • Fuchsia
  • Royal

Long Strapless Lace Dress

$99.00 DI-K0347B
* 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.