Formal and Party Dresses with Sweetheart Necklines

Sweetheart dresses get their name from the curved heart shape of the neckline. A beloved classic design choice, the rounded neckline is a flattering feature on short and long sweetheart dresses. Sweetheart-neckline dresses have been prominent in fashion for decades, making sweetheart formal dresses and sweetheart cocktail dresses time-honored styles that are sure to stay in fashion for years to come. This collection of dresses with sweetheart necklines includes every design from demure sweetheart party dresses to elegant sweetheart evening gowns. Explore these strapless sweetheart dresses, sweetheart cocktail dresses, and short sweetheart dresses for wedding receptions and semi-formal parties. Here you will find sweetheart evening gowns and sweetheart formal dresses for black-tie formals, prom celebrations, or military balls. Let Simply Dresses help you find the ideal sweetheart dress from this collection of dresses with sweetheart necklines in a variety of colors, fabrics, and styles for your semi-formal or formal event.

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145 Dresses

Sweetheart Long Mermaid Prom Dress by Simply
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Red Long Formal Prom Dress by Simply
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MCR-SD-3046 In Stock

Red Long Formal Prom Dress by Simply

$69 $129

Red
PromGirl Fitted Prom Dress with Illusion Cut Outs
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Strapless Long Formal Prom Dress by PromGirl
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Floral-Print Chiffon Kleinfeld Bridesmaid Dress
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Merlot Red Short Party Dress with Choker Collar
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Long Plus-Size Strapless Sweetheart Prom Dress
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SC-PL-PG-2003 In Stock

Long Plus-Size Strapless Sweetheart Prom Dress

$49 $229

Burgundy Navy
Sweetheart Embroidered-Bodice Long Prom Dress
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Elizabeth K Long Lace-Back Formal Dress
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FB-GL1376P In Stock

Elizabeth K Long Lace-Back Formal Dress

$19 $149

Navy
Long Sweetheart Black Formal Dress by Simply
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Sweetheart Short Lace Homecoming Party Dress
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Side-Slit Glitter Long Prom Dress with Caged Back
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Open-Back Long Red Dave and Johnny Prom Dress
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Corset Plus-Size Long Formal Dress with Pockets
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Teal Blue Off-Shoulder Glitter Mermaid Prom Dress
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TI-GL-1911P8366G In Stock

Teal Blue Off-Shoulder Glitter Mermaid Prom Dress

$129 $299

Teal
Annabelle Convertible Jenny Yoo Bridesmaid Dress
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JY-BM-Annabelle In Stock

Annabelle Convertible Jenny Yoo Bridesmaid Dress

$49 $260

Navy Cameo Pink Cabernet +2
Open-Back Sweetheart Long Sequin Formal Dress
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Long Simple Sweetheart Dress with Lace Jacket
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Long Sparkly Formal Prom Dress with Pockets
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Elizabeth K Cold-Shoulder Long Tulle Prom Dress
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Strapless Long Mermaid Formal Prom Dress
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NM-16-354 In Stock

Strapless Long Mermaid Formal Prom Dress

$99 $418

Coral Red
Short Lace-Applique-Bodice A-Line Homecoming Dress
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Short Strapless Cocktail Dress by Faviana 7420
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Designer Long Two-Piece Off-Shoulder Prom Dress
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Glitter-Print Strapless Long Formal Prom Dress
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Strapless Sweetheart Long Satin Prom Dress in Mauve
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Strapless Sweetheart Long Black Formal Dress
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Embroidered-Bodice Long Off-Shoulder Prom Dress
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Long Faviana Off-the-Shoulder Sheer-Back Prom Dress
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JVNX by Jovani Strapless Long Glitter Prom Dress
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Caged-Open-Back Long Mermaid Sweetheart Prom Dress
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Navy Blue Short Homecoming Dress with Sheer Sides
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Madison James Fitted Long Open-Back Prom Dress
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Faviana Off-Shoulder Ruched Satin Evening Dress
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Madison James Long Formal Prom Dress with Beads
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Faviana Floor-Length Strapless Evening Gown
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