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 Spaghetti Strap Print Dress at PromGirl
  • Multi

Short Spaghetti Strap Print Dress

$29.00 $19.00 MD-D12694APE
In Stock Buy Gold Foil Print Dress at PromGirl
  • Gold

Strapless Foil Print Dress

$39.00 $19.00 CL-D40145
In Stock Buy Strapless Black Homecoming Dress at PromGirl
  • Black
  • Grey

Strapless Sequin Cocktail Dress

$49.00 $24.00 MP-D0759
In Stock Buy Short Fitted Strapless Dress at PromGirl
  • Black/Gold

Short Fitted Strapless Dress

$79.00 $26.00 WC-K1744
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 Lace Summer Dress at PromGirl
  • Ivory
  • 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 Sleeveless Black Dress at PromGirl
  • Black

Short Sleeveless Black Dress

$29.00 RR-PQW9477i
In Stock Buy Short Strapless Lace Dress at PromGirl
  • Ivory
  • Peach

Short Strapless Lace Dress

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

Short Spaghetti Strap Homecoming Dress

$59.00 $29.00 MD-D10093GI
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 One Shoulder Ruched Dress at PromGirl
  • Nude
  • Copper

Short One Shoulder Ruched Dress

$99.00 $29.00 HL-201C06000
In Stock Buy Short Strapless Sweetheart Print Dress at PromGirl
  • Blush/Gold

Short Strapless Glitter Mesh Print Dress

$59.00 $29.00 IM-5285-0161C
In Stock Buy Short Strapless Print Dress at PromGirl
  • Brown
  • Royal

Short Strapless Print Dress

$69.00 $34.00 TW-7046PT
In Stock Buy Short Spaghetti Strap Dress by XOXO at PromGirl
  • Burgundy

Short Spaghetti Strap Dress by XOXO

$69.00 $34.00 XO-6457PDS5
In Stock Buy Short Strapless Sweetheart Prom Dress at PromGirl
  • Off White/Black

Short Strapless Sequin Prom Dress

$69.00 $34.00 BD-D5864745
In Stock Buy Short Strapless Dress at PromGirl
  • Mint

Mint Green Short Strapless Dress

$70.00 $35.00 MT-MD-5365
In Stock Buy Short Strapless Sweetheart Dress at PromGirl
  • Black
  • Ivory

Short Strapless Dress

$39.00 MD-D10281XXV
In Stock Buy Short Spaghetti Strap Dress at PromGirl
  • Black/Ivory

Short Spaghetti Strap Dress

$39.00 EM-BCX-1625-006
In Stock Buy Short Strapless Ruched Dress at PromGirl
  • Black

Short Strapless Ruched Dress

$39.00 MD-D12157ABC
In Stock Buy Short Strapless Dress at PromGirl
  • Fuchsia
  • Black

Short Strapless Dress

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

Short Strapless Sweetheart Dress

$79.00 $39.00 MT-MD-6588
In Stock Buy Short Strapless Sequin Embellished Dress at PromGirl
  • New Magenta

Short Strapless Sequin Embellished Dress

$99.00 $39.00 SS-X25981QLR
In Stock Buy Short White Strapless Sweetheart at PromGirl
  • Fuchsia
  • 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 Sweetheart High Low Halter Dress at PromGirl
  • Royal

High Low Halter Dress for Prom

$99.00 $39.00 CT-9560Q02B
In Stock Buy Purple Animal Print Short Dress by XOXO at PromGirl
  • Purple

Purple Animal Print Short Dress

$99.00 $39.00 XO-2568TU11
In Stock Buy Long Spaghetti Strap Dress at PromGirl
  • White/Aqua

Long Spaghetti Strap Dress

$89.00 $44.00 SS-X26942TWG
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
  • Blush

High Low Strapless Sweetheart Dress

$99.00 $49.00 IM-5081-0157C
In Stock Buy Short Strapless A-Line Tulle Dress at PromGirl
  • Red/Black

Strapless Baby Doll Party Dress

$149.00 $49.00 DQ-8427
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 Strapless Sweetheart Pink Dress at PromGirl
  • Pink
  • Black

Strapless Sweetheart Pink Dress

$49.00 EM-DHN-1028-650
In Stock Buy Short Spaghetti Strap Black Dress at PromGirl
  • Black

Short Spaghetti Strap Black Dress

$49.00 EM-DLK-1027-001
Buy Short Strapless Dress at PromGirl
  • Purple
  • Red
  • Black
  • Jade
  • Pink
  • White

Short Strapless Dress

$49.00 TW-3922
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 Strapless Dress with Ruched Bodice at PromGirl
  • Lime

Strapless Prom Gown by Mori Lee

$278.00 $49.00 ML-93214
In Stock Buy Short Strapless Sweetheart Dress 8056 at PromGirl
  • Black/White

Short Strapless Party Dress

$99.00 $49.00 DQ-8056
In Stock Buy Floor Length One Shoulder Dress at PromGirl
  • Watermelon
  • Silver

Floor Length One Shoulder Dress

$149.00 $49.00 NA-2819
In Stock Buy Short Strapless Dress  at PromGirl
  • Navy
  • Dark Teal
  • Coral
  • Light Teal
  • Black
  • Lavender

Short Strapless Dress

$99.00 $49.00 DI-15228
In Stock Buy Short Strapless Sweetheart Sequin Dress at PromGirl
  • Fuchsia

Strapless Sequin Short Prom Dress

$99.00 $49.00 NA-2709
In Stock Buy Floor Length Spaghetti Strap Dress at PromGirl
  • Black/Silver

Long Spaghetti Strap Glitter Dress by Jump

$98.00 $49.00 JU-ON-643345A
In Stock Buy Short Strapless Dress at PromGirl
  • Ivory/Lipstick

Short Strapless Dress

$59.00 LA-23370
In Stock Buy Long Strapless A-Line Prom Dress at PromGirl
  • Yellow/Seafoam

LA Glo Strapless Ball Gown

$119.00 $59.00 LA-23296
In Stock Buy Strapless High Low Short Dress at PromGirl
  • Mint
  • Champagne

Strapless High Low Short Dress

$119.00 $59.00 MT-MD-5693
In Stock Buy Short Green Strapless Sequin Dress at PromGirl
  • Emerald

Short Green Strapless Sequin Dress

$118.00 $59.00 AL-4360
In Stock Buy Long One Shoulder Sweetheart Gown at PromGirl
  • Royal Blue

Long One Shoulder Sweetheart Gown

$129.00 $64.00 DQ-8143
In Stock Buy Ruched Floor Length Sleeveless Dress at PromGirl
  • Purple (Sparkle Purple)

Ruched Floor Length Sleeveless Dress

$129.00 $64.00 BN-54291
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
  • Peach

Short Strapless Dress

$69.00 MT-MD-3727-3
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 Spaghetti Strap Dress at PromGirl
  • New Royal/AB

Short Spaghetti Strap Dress

$69.00 BD-067B601
In Stock Buy Short Strapless Sweetheart Dress at PromGirl
  • Ivory/Black
  • Black

Short Strapless Sweetheart Dress

$69.00 IM-5322-0161C
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 High Low Strapless Dress at PromGirl
  • Mint

High Low Party Dress by LA Glo 22289

$219.00 $74.00 LA-22289
In Stock Buy Floor Length Strapless Sweetheart Dress at PromGirl
  • Lilac
  • Black
  • Turquoise

Sequin Mermaid Gown

$149.00 $74.00 DQ-8417
In Stock Buy Short Strapless Sweetheart Dress at PromGirl
  • Jade

Short Strapless Sweetheart Dress

$149.00 $74.00 JT-721
In Stock Buy Floor Length One Shoulder Navy Dress at PromGirl
  • Deep Navy

Floor Length One Shoulder Navy Dress

$149.00 $74.00 BN-54090
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 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 High Low Strapless Dress at PromGirl
  • Purple
  • Hot Pink

High Low Strapless Dress

$79.00 MY-6103XY1N
In Stock Buy Short Strapless Empire Waist Dress at PromGirl
  • Seafoam

Short Strapless Black Dress

$79.00 MT-MD-5707
In Stock Buy Short Strapless Dress at PromGirl
  • Royal
  • Black
  • Red

Short Strapless Dress

$79.00 MT-6972
In Stock Buy Strapless Sweetheart Ball Gown at PromGirl
  • Black

Strapless Sequin Ball Gown

$179.00 $79.00 DQ-8418
In Stock Buy Floor Length Strapless Sweetheart Ruched Dress at PromGirl
  • Peacock
  • Mint

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 Floor Length Strapless Sweetheart at PromGirl
  • Purple
  • Peach

Lace Up Strapless Prom Gown

$189.00 $94.00 DQ-8532
In Stock Buy One Shoulder Floor Length Dress at PromGirl
  • Royal Blue
  • Fuchsia

One Shoulder Floor Length Dress

$189.00 $95.00 DQ-8365
In Stock Buy One Shoulder Sexy Atria Dress at PromGirl
  • Red
  • Turquoise
  • Black
  • Purple
  • White

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
  • Red
  • Royal

Long Strapless Lace Dress

$99.00 DI-K0347B
In Stock Buy Floor Length One Shoulder Dress at PromGirl
  • Black

Floor Length One Shoulder Dress

$378.00 $99.00 JZ-5044
In Stock Buy Full Length Strapless Evening Gown at PromGirl
  • Turquoise Stone

Full Length Strapless Evening Gown

$358.00 $99.00 FA-7344
In Stock Buy Jasz Floor Length Strapless Dress at PromGirl
  • Fuchsia

Jasz Floor Length Strapless Dress

$398.00 $99.00 JZ-5011
In Stock Buy One Shoulder Floor Length Dress at PromGirl
  • Fuchsia
  • Aqua
  • Coral

One Shoulder Floor Length Dress

$278.00 $99.00 KC-3716
In Stock Buy Floor Length Lace Dress at PromGirl
  • Pink

Floor Length Lace Dress

$242.00 $99.00 DJ-10174
In Stock Buy Full Length Strapless Formal Gown at PromGirl
  • Wild Orchid
  • Red

Faviana Strapless Evening Gown 7339

$278.00 $99.00 FA-7339
In Stock Buy Beaded Strapless High Low Dress at PromGirl
  • Ballet Slippers

Beaded Strapless High Low Dress

$398.00 $99.00 ML-95096
In Stock Buy Floor Length Bead Embellished Dress at PromGirl
  • Teal

Floor Length Bead Embellished Dress

$279.00 $99.00 DJ-10445
In Stock Buy Full Length Strapless Chiffon Dress at PromGirl
  • Orchid

Full Length Strapless Chiffon Dress

$278.00 $99.00 FA-7364
In Stock Buy Light Mint Long Strapless Dress at PromGirl
  • Light Mint

La Femme Long Strapless Beaded Dress

$498.00 $99.00 LF-20139
In Stock Buy Short Strapless Black Multi Sequin Dress at PromGirl
  • Ivory/Gold/Silver

Short Strapless Black Multi Sequin Dress

$198.00 $99.00 Scala-47578
In Stock Buy Shimmer Strapless Sweetheart Prom Dress at PromGirl
  • Cobalt/Turquoise

Shimmer Sexy Corset Evening Gown

$260.00 $99.00 BJ-59403-BJV
In Stock Buy Hannah S Dress 27629 at PromGirl
  • Magenta/Gold

Hannah S Short Sequin Party Dress

$208.00 $99.00 HS-27629
In Stock Buy Long Strapless Sweetheart Dress at PromGirl
  • Midnight Blue
  • Jungle Green

Long Strapless Sweetheart Dress

$278.00 $99.00 LF-18216
In Stock Buy Short Strapless Sequin Embellished Dress at PromGirl
  • Ivory/Silver/Gold

Short Strapless Sequin Embellished Dress

$198.00 $99.00 Scala-47656
In Stock Buy Night Moves 7039 Strapless Dress at PromGirl
  • Turquoise

Night Moves 7039 Strapless Dress

$398.00 $99.00 NM-7039
In Stock Buy Strapless High Low Prom Dress at PromGirl
  • Lilac

Strapless High Low Prom Dress

$268.00 $99.00 BJ-A59841
In Stock Buy Full Length Sweetheart Evening Gown at PromGirl
  • Bright Pink

Full Length Sweetheart Evening Gown

$260.00 $99.00 ST-12459
In Stock Buy Strapless Sweetheart Shail K Dress at PromGirl
  • Blush
  • Red

Strapless Sweetheart Shail K Dress

$370.00 $99.00 SK-3846
* 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.