Long Formal Dresses and Formal Evening Gowns

When searching for a long formal dress or floor-length evening gown, today’s confident woman can look and feel her best in a beautiful formal dress by Simply Dresses. Whether you want to be simply stunning or elegantly low-key, find the formal wear that’s just right for you in this collection of long evening gowns and formal dresses. If your style of formal wear includes a refined and understated look, browse classic cap-sleeve lace dresses and princess-cut v-neck jersey dresses. Prefer a bold and dramatic vibe for your formal prom dress or long evening gown? Try an open-back formal gown in a vibrant, rich jewel tone. Either way, Simply Dresses aims to please with this versatile assortment of formal dresses.

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1,121 Dresses

V-Neck Long Prom Dress with Adjustable Straps
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Sherri Hill Long Formal Gown with Lace Bodice
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Sweetheart Long Mermaid Prom Dress by Simply
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Floral Print Long Chiffon V-Neck Wedding Guest Dress
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Off-the-Shoulder Sweetheart Long Formal Dress
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Faviana Off-Shoulder Ruched Satin Evening Dress
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Long Formal Off-the-Shoulder Wedding-Guest Dress
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Off-the-Shoulder Mermaid Long Black Formal Dress
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Long Decolletage-V-Neck Formal Prom Dress
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LP-25297 In Stock

Long Decolletage-V-Neck Formal Prom Dress

$69 $149

Navy Mauve Burgundy +2
Formal Long Satin Prom Dress in Blush Pink
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Sleeveless Long Beaded-Illusion-Bodice Prom Dress
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Tiered Floral Print Knee-Length Wedding Guest Dress
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Cap-Sleeve Long Formal Dress with Lace Bodice
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FB-GL1398Y In Stock

Cap-Sleeve Long Formal Dress with Lace Bodice

$129 $199

Navy Mocha Burgundy +2
Embroidered-Bodice Long Sweetheart Gown
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Mother-of-the-Bride Long Navy Dress
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JU-ON-650357 In Stock

Mother-of-the-Bride Long Navy Dress

$89 $99

Navy
Elizabeth K Long Prom Dress with Embroidered Lace
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Formal Long Evening Dress with Lace Cap Sleeves
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Ruffle Trimmed Bodice Graduation Party Dress
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Off-the-Shoulder Sherri Hill Military Ball Dress
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Sheer Bodice Long Prom Dress with Lace Applique
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Embroidered V-Neck Bodice Prom Dress with Long Skirt
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Long V-Neck Floral-Print Prom Dress by Simply
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Vintage-Inspired Long Sequin V-Neck Formal Dress
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Lace-Bodice High-Neck Formal Long Prom Dress
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SOI-M17756-v In Stock

Lace-Bodice High-Neck Formal Long Prom Dress

$69 $129

Mauve Blush
Long Chiffon Prom Dress with Gold Lace Applique
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Cap-Sleeve Deep-V-Neck Long Lace Formal Dress
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Floral Print High-Low Wedding Guest Dress
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Long Mauve Pink Prom Dress with Sequin Bodice
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Long Prom Dress with Lace V-Neckline
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SY-IDM5575VP In Stock

Long Prom Dress with Lace V-Neckline

$79 $129

Mauve Samba Red Black
Ruched Neck High-Low Wedding Guest Print Dress
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Lace-Bodice Long Black Millitary Ball Dress with Slit
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V-Neck Long Silver Formal Dress with Sequins
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JU-MA-262462 In Stock

V-Neck Long Silver Formal Dress with Sequins

$206 $229

Silver
Simple Long Formal Dress with Deep V-Neckline
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