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2021 Long Prom Dresses and Prom Gowns

Every girl deserves the long prom dress of her dreams. If you’re looking for a long dress or evening gown for prom, make PromGirl your go-to online prom dress shop. If you’re looking for a long dress or evening gown for prom, make PromGirl your go-to online prom dress shop. You'll find a huge selection of long prom dresses and formal gowns that will make prom a fantasy dream come true.

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1,717 Dresses

Strappy-Open-Back Satin Long Prom Dress by PromGirl
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Long Beaded Mermaid-Style Designer Prom Dress
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Open-Back Long Formal Satin Prom Dress by PromGirl
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Long V-Neck JVN by Jovani Satin Prom Dress
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JO-JVN-JVN02044

Long V-Neck JVN by Jovani Satin Prom Dress

$292

Magenta Black
Long Tulle Formal Prom Dress with Low V-Neck
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Long Deep-V-Neck Prom Ball Gown by PromGirl
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White One Shoulder Ball Gown for Prom 2021
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Simple Long Formal Prom 2021 Dress 11001 by Jump
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Cold Shoulder Lace-Body Long Prom Dress 1065
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Ruffle Criss-Cross Back V-Neck Dress
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LAS-SY-21-IDM7872EP In Stock

Ruffle Criss-Cross Back V-Neck Dress

$79

White Black
White Long Embroidered Illusion-Bodice Dress
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Formal Sequin Jumpsuit for Prom
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LAS-MST-21-LR70808 In Stock

Formal Sequin Jumpsuit for Prom

$79

Pink Champagne
Dave and Johnny Long Prom Dress A6690
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DJ-A6690

Dave and Johnny Long Prom Dress A6690

$198

Rose Royal Emerald +5
Long V-Neck Prom Dress with Embroidered Bodice
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PromGirl Formal Prom Dress with Embroidered Bodice
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Off-the-Shoulder Long Prom Dress 1092 by Shail K
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Long Metallic Crepe V-Neck Prom Dress
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Long V-Neck Open-Back Chiffon Prom Dress by PromGirl
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Red Lace Off-the-Shoulder Mermaid Prom Dress
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Long Open-Back Formal Tulle Prom Dress by PromGirl
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Long Tulle V-Neck Formal Prom Dress by PromGirl
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White Lace V-Neck Formal Ball Gown
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NA-21-C461

White Lace V-Neck Formal Ball Gown

$329

White
Long Glitter-Knit V-Neck Prom Dress by PromGirl
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PromGirl Long Prom Dress with Double-Slit Skirt
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Long Strappy-Back Prom Dress 1095 by Shail K
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Long A-Line Sweetheart Prom Dress by PromGirl
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Low-V-Neck Long Prom Dress by PromGirl
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One Shoulder Satin Long Simple Prom Dress
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Long Alyce High-Low Taffeta Prom Dress with Slit
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High-Neck Chiffon Ruched Long Prom Dress
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Long Off-the-Shoulder Sequin Shail K Prom Dress 1102
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Long Off-the-Shoulder Gorgeous Prom Dress
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