Top Picks
ROSIE’S PICK
EGOLong Sleeve Square Neck Mesh Panel Detail Drape Front Maxi Dress In Black Slinky, Women's Size UK
£32.00 EGO
£29.07
£25.00 DOROTHY PERKINS
£95.59
£65.00 DOROTHY PERKINS
ELLIE’S PICK
MILANOOSquare Neck Women Bubble Mini Dress With Big Bow - Black Long Sleeve Elegant Contrast - Audrey Style Spring Party Wear 2026
£46.73
£25.70 MILANOO
£95.59
£65.00 DOROTHY PERKINS
How we pick
Quick word on how this list was made. Rosie, Siobhan, Lauren, Ellie and Tamsin picked their favourites from the black square neck party dress we found across loads of UK shops. No sponsored spots, no brand deals, just what they'd buy with their own money. We keep a mix of prices so there's something whether you're treating yourself or being sensible this month, and we limit how many come from one retailer. Stock and prices update regularly from each shop, so if something's gone, it's sold out rather than hidden.
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Under £5015 pieces
EGO
Long Bell Sleeve Square Neck Mini Dress In Black, Women's Size UK
£27.00 EGOEGO
Long Sleeve Square Neck Mesh Panel Detail Drape Front Maxi Dress In Black Slinky, Women's Size UK
£32.00 EGO
EGO
Long Sleeve Square Neck Bodycon Mini Dress In Black Slinky, Women's Size UK
£18.00 EGO
GODDIVA
Square Neck Scalloped Lace Maxi - Champagne by Goddiva
£39.00 GODDIVA
PRETTYLITTLETHING
Tall Black Square Neck Midaxi Dress
£32.00 PRETTYLITTLETHING
GODDIVA
Square Neck Scalloped Lace Maxi - Black by Goddiva
£39.00 GODDIVA
EGO
Strappy Square Neck Lace Trim Mini Dress In Black Bandage, Women's Size UK
£16.00 EGO
EGO
Sale WatcherSquare Neck Corset Ruched Drape Detail Mini Dress In Black Satin, Women's Size UK
£40.00 EGO
3black square neck party dress on sale right nowSee them all →−45%
MILANOO
Pearl Trim Mini Dress For Women - Black Elegant Square Neck A-line Skater Dress - Spring Cocktail Party 2026
£31.15 £17.13 MILANOO−45%
MILANOO
Halter Mini Dress In Black Square Neck A-Line Sexy Birthday Party Dress For Women 2026
£38.24 £21.03 MILANOO−58%
DOROTHY PERKINS
Ax Paris Black Halter Neck Bubble Hem Mini Dress
£59.50 £24.99 DOROTHY PERKINS−14%
DOROTHY PERKINS
Jolie Moi Janice Square Neck Frill Midi Dress In Black
£29.07 £25.00 DOROTHY PERKINS−58%
MISSPAP
Warehouse Women's Embellished Quilted Velvet Pinafore Dress in Black
£59.52 £25.00 MISSPAP−45%
MILANOO
Square Neck Women Bubble Mini Dress With Big Bow - Black Long Sleeve Elegant Contrast - Audrey Style Spring Party Wear 2026
£46.73 £25.70 MILANOO−48%
DOROTHY PERKINS
Izabel London Ikat Print Sleeveless A-Line Maxi Dress In Black
£50.48 £26.25 DOROTHY PERKINS£50 to £1006 pieces
GODDIVA
Goddiva Square Neck Scalloped Lace Maxi
£85.00 GODDIVAMISSPAP
MISSPAP Women's Square Neck A Line Midi Dress in Black
£60.00 MISSPAP−66%
MISSPAP
MISSPAP Women's Studded Sequin Embellished Square Neck Mini Dress in Gold
£150.00 £51.00 MISSPAP−32%
DOROTHY PERKINS
Goddiva Square Neck Scalloped Lace Maxi In Medium Beige
£95.59 £65.00 DOROTHY PERKINS−32%
DOROTHY PERKINS
Goddiva Square Neck Scalloped Lace Maxi In Black
£95.59 £65.00 DOROTHY PERKINS−30%
DOROTHY PERKINS
Coast Square Neck Satin And Crepe Bridesmaid Dress With Bow Back In Black
£119.00 £83.30 DOROTHY PERKINSMore like this
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