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Find designer formal dresses, designer cocktail dresses, A-line dresses, and classic little black dresses all discounted up to 90% off estimated retail prices at thredUP. Browse an endless selection of gently used dresses by famous designer brands.

FormalRemove filter$[25:50]+Remove filter
43 items
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    Badgley Mischka Cocktail Dress (view 2)Badgley Mischka Cocktail Dress (view 1)
    View Product: Badgley Mischka Cocktail Dress

    Badgley Mischka

    Cocktail Dress
    Size 4
    $92.99
    82% off estimated retail
    Veronica Beard Cocktail Dress (view 2)Veronica Beard Cocktail Dress (view 1)New With Tags
    View Product: Veronica Beard Cocktail Dress

    Veronica Beard

    Cocktail Dress
    Size 2
    $197.99
    66% off estimated retail
    Badgley Mischka Cocktail Dress (view 2)Badgley Mischka Cocktail Dress (view 1)
    View Product: Badgley Mischka Cocktail Dress

    Badgley Mischka

    Cocktail Dress
    Size 6
    $134.99
    74% off estimated retail
    Badgley Mischka Cocktail Dress (view 2)Badgley Mischka Cocktail Dress (view 1)
    View Product: Badgley Mischka Cocktail Dress

    Badgley Mischka

    Cocktail Dress
    Size 8
    $140.99
    73% off estimated retail
    The Edit. Forever Classic, Get perfectly polished in trousers, blazers, and more. Shop The Edit
    Badgley Mischka Cocktail Dress (view 2)Badgley Mischka Cocktail Dress (view 1)
    View Product: Badgley Mischka Cocktail Dress

    Badgley Mischka

    Cocktail Dress
    Size 4
    $128.99
    75% off estimated retail
    Jenny Packham Cocktail Dress (view 2)Jenny Packham Cocktail Dress (view 1)
    View Product: Jenny Packham Cocktail Dress

    Jenny Packham

    Cocktail Dress
    Size 0
    $114.99
    82% off estimated retail
    Lela Rose Cocktail Dress (view 2)Lela Rose Cocktail Dress (view 1)New With Tags
    View Product: Lela Rose Cocktail Dress

    Lela Rose

    Cocktail Dress
    Size 4
    $86.99
    77% off estimated retail
    Theia Cocktail Dress (view 2)Theia Cocktail Dress (view 1)
    View Product: Theia Cocktail Dress

    Theia

    Cocktail Dress
    Size 6
    $279.99
    68% off estimated retail
    Badgley Mischka Cocktail Dress (view 2)Badgley Mischka Cocktail Dress (view 1)
    View Product: Badgley Mischka Cocktail Dress

    Badgley Mischka

    Cocktail Dress
    Size 10
    $99.99
    81% off estimated retail
    Alice + Olivia Cocktail Dress (view 2)Alice + Olivia Cocktail Dress (view 1)
    View Product: Alice + Olivia Cocktail Dress

    Alice + Olivia

    Cocktail Dress
    Size 2
    $511.99
    19% off estimated retail
    Badgley Mischka Cocktail Dress (view 2)Badgley Mischka Cocktail Dress (view 1)
    View Product: Badgley Mischka Cocktail Dress

    Badgley Mischka

    Cocktail Dress
    Size 0
    $120.99
    77% off estimated retail
    Badgley Mischka Cocktail Dress (view 2)Badgley Mischka Cocktail Dress (view 1)
    View Product: Badgley Mischka Cocktail Dress

    Badgley Mischka

    Cocktail Dress
    Size 4
    $174.99
    66% off estimated retail
    Sachin + Babi Cocktail Dress (view 2)Sachin + Babi Cocktail Dress (view 1)
    View Product: Sachin + Babi Cocktail Dress

    Sachin + Babi

    Cocktail Dress
    Size 2
    $78.99
    77% off estimated retail
    Herve Leger Cocktail Sara Dress (view 2)Herve Leger Cocktail Sara Dress (view 1)Flawed Gem
    View Product: Herve Leger Cocktail Sara Dress

    Herve Leger

    Cocktail Sara Dress
    Size Sm
    $211.99
    86% off estimated retail
    Tibi Cocktail Dress (view 2)Tibi Cocktail Dress (view 1)
    View Product: Tibi Cocktail Dress

    Tibi

    Cocktail Dress
    Size 6
    $61.99 $31.00 50% off with code THANKU
    91% off estimated retail
    Jenny Packham Cocktail Dress (view 2)Jenny Packham Cocktail Dress (view 1)
    View Product: Jenny Packham Cocktail Dress

    Jenny Packham

    Cocktail Dress
    Size 6
    $102.99 $82.39 20% off with code THANKU
    94% off estimated retail
    Sachin + Babi Cocktail Dress (view 2)Sachin + Babi Cocktail Dress (view 1)
    View Product: Sachin + Babi Cocktail Dress

    Sachin + Babi

    Cocktail Dress
    Size 2
    $65.99 $36.29 45% off with code THANKU
    60% off estimated retail
    Zac Posen Cocktail Dress (view 2)Zac Posen Cocktail Dress (view 1)New With Tags
    View Product: Zac Posen Cocktail Dress

    Zac Posen

    Cocktail Dress
    Size 12
    $120.99 $96.79 20% off with code THANKU
    82% off estimated retail
    Nicole Miller Cocktail Dress (view 2)Nicole Miller Cocktail Dress (view 1)
    View Product: Nicole Miller Cocktail Dress

    Nicole Miller

    Cocktail Dress
    Size 4
    $73.99 $59.19 20% off with code THANKU
    82% off estimated retail
    Badgley Mischka Cocktail Dress (view 2)Badgley Mischka Cocktail Dress (view 1)
    View Product: Badgley Mischka Cocktail Dress

    Badgley Mischka

    Cocktail Dress
    Size 6
    $143.99
    72% off estimated retail
    Parker Cocktail Dress (view 2)Parker Cocktail Dress (view 1)
    View Product: Parker Cocktail Dress

    Parker

    Cocktail Dress
    Size 2
    $54.99 $43.99 20% off with code THANKU
    82% off estimated retail
    Badgley Mischka Cocktail Dress (view 2)Badgley Mischka Cocktail Dress (view 1)
    View Product: Badgley Mischka Cocktail Dress

    Badgley Mischka

    Cocktail Dress
    Size 8
    $200.99 $160.79 20% off with code THANKU
    62% off estimated retail
    Jenny Packham Cocktail Dress (view 2)Jenny Packham Cocktail Dress (view 1)
    View Product: Jenny Packham Cocktail Dress

    Jenny Packham

    Cocktail Dress
    Size 0
    $536.99 $429.59 20% off with code THANKU
    83% off estimated retail
    Badgley Mischka Cocktail Dress (view 2)Badgley Mischka Cocktail Dress (view 1)
    View Product: Badgley Mischka Cocktail Dress

    Badgley Mischka

    Cocktail Dress
    Size 0
    $106.99 $85.59 20% off with code THANKU
    79% off estimated retail
    Marchesa Cocktail Dress (view 2)Marchesa Cocktail Dress (view 1)
    View Product: Marchesa Cocktail Dress

    Marchesa

    Cocktail Dress
    Size 10
    $187.99
    76% off estimated retail
    Theory Cocktail Dress (view 2)Theory Cocktail Dress (view 1)
    View Product: Theory Cocktail Dress

    Theory

    Cocktail Dress
    Size 8
    $200.99 $160.79 20% off with code THANKU
    43% off estimated retail
    Badgley Mischka Cocktail Dress (view 2)Badgley Mischka Cocktail Dress (view 1)
    View Product: Badgley Mischka Cocktail Dress

    Badgley Mischka

    Cocktail Dress
    Size 8
    $79.99 $63.99 20% off with code THANKU
    73% off estimated retail
    Theia Cocktail Dress (view 2)Theia Cocktail Dress (view 1)
    View Product: Theia Cocktail Dress

    Theia

    Cocktail Dress
    Size 2
    $299.99
    62% off estimated retail
    Kate Spade New York Cocktail Dress (view 2)Kate Spade New York Cocktail Dress (view 1)
    View Product: Kate Spade New York Cocktail Dress

    Kate Spade New York

    Cocktail Dress
    Size 8
    $153.99 $123.19 20% off with code THANKU
    79% off estimated retail
    Theia Cocktail Dress (view 2)Theia Cocktail Dress (view 1)
    View Product: Theia Cocktail Dress

    Theia

    Cocktail Dress
    Size 0
    $191.99 $153.59 20% off with code THANKU
    70% off estimated retail
    Badgley Mischka Cocktail Dress (view 2)Badgley Mischka Cocktail Dress (view 1)
    View Product: Badgley Mischka Cocktail Dress

    Badgley Mischka

    Cocktail Dress
    Size 6
    $200.99 $160.79 20% off with code THANKU
    34% off estimated retail
    Badgley Mischka Cocktail Dress (view 2)Badgley Mischka Cocktail Dress (view 1)
    View Product: Badgley Mischka Cocktail Dress

    Badgley Mischka

    Cocktail Dress
    Size 6
    $91.99 $73.59 20% off with code THANKU
    82% off estimated retail
    Jenny Packham Cocktail Dress (view 2)Jenny Packham Cocktail Dress (view 1)
    View Product: Jenny Packham Cocktail Dress

    Jenny Packham

    Cocktail Dress
    Size 2
    $265.99 $212.79 20% off with code THANKU
    87% off estimated retail
    Jason Wu Cocktail Dress (view 2)Jason Wu Cocktail Dress (view 1)
    View Product: Jason Wu Cocktail Dress

    Jason Wu

    Cocktail Dress
    Size Lg
    $181.99 $145.59 20% off with code THANKU
    81% off estimated retail
    Michael Lo Sordo Cocktail Dress (view 2)Michael Lo Sordo Cocktail Dress (view 1)
    View Product: Michael Lo Sordo Cocktail Dress

    Michael Lo Sordo

    Cocktail Dress
    Size 8
    $273.99 $219.19 20% off with code THANKU
    67% off estimated retail
    Theia Cocktail Dress (view 2)Theia Cocktail Dress (view 1)
    View Product: Theia Cocktail Dress

    Theia

    Cocktail Dress
    Size 2
    $199.99
    76% off estimated retail
    Halston Heritage Cocktail Dress (view 2)Halston Heritage Cocktail Dress (view 1)
    View Product: Halston Heritage Cocktail Dress

    Halston Heritage

    Cocktail Dress
    Size 4
    $96.99 $48.50 50% off with code THANKU
    79% off estimated retail
    Lela Rose Cocktail Dress (view 2)Lela Rose Cocktail Dress (view 1)
    View Product: Lela Rose Cocktail Dress

    Lela Rose

    Cocktail Dress
    Size 4
    $124.99 $99.99 20% off with code THANKU
    85% off estimated retail
    Cynthia Steffe Cocktail Dress (view 2)Cynthia Steffe Cocktail Dress (view 1)
    View Product: Cynthia Steffe Cocktail Dress

    Cynthia Steffe

    Cocktail Dress
    Size 4
    $72.99 $47.44 35% off with code THANKU
    77% off estimated retail
    Cinq à Sept Annalie Gown (view 2)Cinq à Sept Annalie Gown (view 1)
    View Product: Cinq à Sept Annalie Gown

    Cinq à Sept

    Annalie Gown
    Size 4
    $182.99 $146.39 20% off with code THANKU
    73% off estimated retail
    Tibi Cocktail Dress (view 2)Tibi Cocktail Dress (view 1)Price Drop
    View Product: Tibi Cocktail Dress

    Tibi

    Cocktail Dress
    Size 6
    $84.99 $34.00 60% off with code THANKU
    88% off estimated retail
    Andrew Gn Cocktail Dress (view 2)Andrew Gn Cocktail Dress (view 1)Price Drop
    View Product: Andrew Gn Cocktail Dress

    Andrew Gn

    Cocktail Dress
    Size 36 french
    $148.99 $81.94 45% off with code THANKU
    88% off estimated retail
    Dolce & Gabbana Cocktail Dress (view 2)Dolce & Gabbana Cocktail Dress (view 1)Price Drop
    View Product: Dolce & Gabbana Cocktail Dress

    Dolce & Gabbana

    Cocktail Dress
    Size 38 italian
    $1341.99 $1073.59 20% off with code THANKU
    69% off estimated retail
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