Top Picks
Cutout Backless Mini Dress for Women - Boho Ruffle Tiered Spaghetti Strap A-Line Sundress - Summer Beach Party 2026
AISHA’S PICK MILANOOCutout Backless Mini Dress for Women - Boho Ruffle Tiered Spaghetti Strap A-Line Sundress - Summer Beach Party 2026
ÂŁ29.85 ÂŁ17.91 MILANOO
Sleeveless Mini Dress Backless Cupcake Hem Birthday Party Dresses
ELLIE’S PICK MILANOOSleeveless Mini Dress Backless Cupcake Hem Birthday Party Dresses
ÂŁ39.54 ÂŁ25.70 MILANOO
Party Dress Mini Black Straps Neck Lace Sleeveless Backless Casual Semi Formal Dress
FIONA’S PICK MILANOOParty Dress Mini Black Straps Neck Lace Sleeveless Backless Casual Semi Formal Dress
ÂŁ37.00 ÂŁ29.60 MILANOO
Deep V-Neck Halter Backless High Waist A-Line Sexy Party Mini Dress For Women 2026
ROSIE’S PICK MILANOODeep V-Neck Halter Backless High Waist A-Line Sexy Party Mini Dress For Women 2026
ÂŁ31.15 ÂŁ17.13 MILANOO
A-line Dress with Floral Embellishments No-sleeve Backless Birthday Party Mini Bud Dress For Women 2026
MEGAN’S PICK MILANOOA-line Dress with Floral Embellishments No-sleeve Backless Birthday Party Mini Bud Dress For Women 2026
ÂŁ42.83 ÂŁ25.70 MILANOO
How we pick

Nobody here is paid to push a brand. Aisha, Ellie, Fiona, Rosie and Megan went through everything in backless mini party dress the way you would on a lunch break, scrolling, squinting at the fabric, checking the price twice. What made the list is what they'd actually put in their own basket. We look for pieces that wash well, sit right and don't cost silly money for what they are, and we mix up the shops so you're not just looking at one high street name over and over. Prices and stock come straight from the retailers and change often, so it's always worth a quick check before you buy.

We may earn a small commission if you buy through links on this page. It costs you nothing extra and helps keep the site running. How we make money

Plunge Front Drape Detail Ruched Mini Dress In Lemon Yellow, Women's Size UK
EGO

Plunge Front Drape Detail Ruched Mini Dress In Lemon Yellow, Women's Size UK

ÂŁ5.00 EGO
Lemon Woven Plunge Ruched Bodice Frill Hem Mini Dress
PRETTYLITTLETHING

Lemon Woven Plunge Ruched Bodice Frill Hem Mini Dress

ÂŁ12.50 PRETTYLITTLETHING
MISSPAP Women's Pleated Detail Volume Hem Mini Dress in Sage
MISSPAP

MISSPAP Women's Pleated Detail Volume Hem Mini Dress in Sage

ÂŁ59.00 MISSPAP
−45%Sexy Women's Backless Mini Dress - Y2K Butterfly Detail Cut Out Bodycon - Edgy Summer Night Clubwear Party Outfits 2026
MILANOO

Sexy Women's Backless Mini Dress - Y2K Butterfly Detail Cut Out Bodycon - Edgy Summer Night Clubwear Party Outfits 2026

ÂŁ24.07 ÂŁ13.24 MILANOO
−50%Gingham Cottagecore Mini Dress For Women - Yellow Plaid Halter Backless Skater - Summer Birthday Party 2026
MILANOO

Gingham Cottagecore Mini Dress For Women - Yellow Plaid Halter Backless Skater - Summer Birthday Party 2026

ÂŁ28.04 ÂŁ14.02 MILANOO
Sale Watcher15backless mini party dress on sale right nowSee them all →
−50%Black Lace Corset Women Mini Dress - Sexy Backless Lace Up Bodycon - Coquette Aesthetic Summer Party Night Club Wear 2026
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Black Lace Corset Women Mini Dress - Sexy Backless Lace Up Bodycon - Coquette Aesthetic Summer Party Night Club Wear 2026

ÂŁ32.70 ÂŁ16.35 MILANOO
−45%Deep V-Neck Halter Backless High Waist A-Line Sexy Party Mini Dress For Women 2026
MILANOO

Deep V-Neck Halter Backless High Waist A-Line Sexy Party Mini Dress For Women 2026

ÂŁ31.15 ÂŁ17.13 MILANOO
−30%High Neck Backless Slinky Mini Dress Black
PUBLIC DESIRE

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ÂŁ25.00 ÂŁ17.50 PUBLIC DESIRE
−40%Cutout Backless Mini Dress for Women - Boho Ruffle Tiered Spaghetti Strap A-Line Sundress - Summer Beach Party 2026
MILANOO

Cutout Backless Mini Dress for Women - Boho Ruffle Tiered Spaghetti Strap A-Line Sundress - Summer Beach Party 2026

ÂŁ29.85 ÂŁ17.91 MILANOO
−30%Satin Halter Mini Dress For Women - Backless Deep V Neck Short Gown With Scarf - Summer Cocktail Club 2026
MILANOO

Satin Halter Mini Dress For Women - Backless Deep V Neck Short Gown With Scarf - Summer Cocktail Club 2026

ÂŁ25.59 ÂŁ17.91 MILANOO
−30%Backless Sheer Mini Dress For Women - Sexy V Neck Tie Front Long Sleeves Ruched Bodycon - Summer Night Out Club Party 2026
MILANOO

Backless Sheer Mini Dress For Women - Sexy V Neck Tie Front Long Sleeves Ruched Bodycon - Summer Night Out Club Party 2026

ÂŁ26.70 ÂŁ18.69 MILANOO
−68%MISSPAP Women's Premium Mixed Sequin Backless Mini Dress in Navy
MISSPAP

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ÂŁ68.75 ÂŁ22.00 MISSPAP
−35%Sleeveless Mini Dress Backless Cupcake Hem Birthday Party Dresses
MILANOO

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ÂŁ39.54 ÂŁ25.70 MILANOO
−40%A-line Dress with Floral Embellishments No-sleeve Backless Birthday Party Mini Bud Dress For Women 2026
MILANOO

A-line Dress with Floral Embellishments No-sleeve Backless Birthday Party Mini Bud Dress For Women 2026

ÂŁ42.83 ÂŁ25.70 MILANOO
−20%Party Dress Mini Black Straps Neck Lace Sleeveless Backless Casual Semi Formal Dress
MILANOO

Party Dress Mini Black Straps Neck Lace Sleeveless Backless Casual Semi Formal Dress

ÂŁ37.00 ÂŁ29.60 MILANOO