Top Picks
Square Neck Scalloped Lace Maxi - Black by Goddiva
MAGGIE’S PICK GODDIVASquare Neck Scalloped Lace Maxi - Black by Goddiva
£39.00 GODDIVA
Jolie Moi Janice Square Neck Frill Midi Dress In Black
ELLIE’S PICK DOROTHY PERKINSJolie Moi Janice Square Neck Frill Midi Dress In Black
£29.07 £25.00 DOROTHY PERKINS
Square Neck Scalloped Lace Maxi - Champagne by Goddiva
LAUREN’S PICK GODDIVASquare Neck Scalloped Lace Maxi - Champagne by Goddiva
£39.00 GODDIVA
Square Neck Women Bubble Mini Dress With Big Bow - Black Long Sleeve Elegant Contrast - Audrey Style Spring Party Wear 2026
TAMSIN’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
Coast Square Neck Satin And Crepe Bridesmaid Dress With Bow Back In Black
ESME’S PICK DOROTHY PERKINSCoast Square Neck Satin And Crepe Bridesmaid Dress With Bow Back In Black
£119.00 £83.30 DOROTHY PERKINS
How we pick

Quick word on how this list was made. Maggie, Ellie, Lauren, Tamsin and Esme 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.

Under £5016 pieces
Long Bell Sleeve Square Neck Mini Dress In Black, Women's Size UK
EGO

Long Bell Sleeve Square Neck Mini Dress In Black, Women's Size UK

£27.00 EGO
Long Sleeve Square Neck Lace Trim Split Front Top In Black, Women's Size UK
EGO

Long Sleeve Square Neck Lace Trim Split Front Top In Black, Women's Size UK

£39.00 EGO
Long Sleeve Square Neck Mesh Panel Detail Drape Front Maxi Dress In Black Slinky, Women's Size UK
EGO

Long Sleeve Square Neck Mesh Panel Detail Drape Front Maxi Dress In Black Slinky, Women's Size UK

£32.00 EGO
Long Sleeve Square Neck Bodycon Mini Dress In Black Slinky, Women's Size UK
EGO

Long Sleeve Square Neck Bodycon Mini Dress In Black Slinky, Women's Size UK

£18.00 EGO
Square Neck Scalloped Lace Maxi - Champagne by Goddiva
GODDIVA

Square Neck Scalloped Lace Maxi - Champagne by Goddiva

£39.00 GODDIVA
Strappy Square Neck Corset Detail Top In Black, Women's Size UK
EGO

Strappy Square Neck Corset Detail Top In Black, Women's Size UK

£22.00 EGO
Tall Black Square Neck Midaxi Dress
PRETTYLITTLETHING

Tall Black Square Neck Midaxi Dress

£32.00 PRETTYLITTLETHING
Square Neck Scalloped Lace Maxi - Black by Goddiva
GODDIVA

Square Neck Scalloped Lace Maxi - Black by Goddiva

£39.00 GODDIVA
Sale Watcher3black square neck party dress on sale right nowSee them all →
Strappy Square Neck Lace Trim Mini Dress In Black Bandage, Women's Size UK
EGO

Strappy Square Neck Lace Trim Mini Dress In Black Bandage, Women's Size UK

£16.00 EGO
−45%Pearl Trim Mini Dress For Women - Black Elegant Square Neck A-line Skater Dress - Spring Cocktail Party 2026
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%Halter Mini Dress In Black Square Neck A-Line Sexy Birthday Party Dress For Women 2026
MILANOO

Halter Mini Dress In Black Square Neck A-Line Sexy Birthday Party Dress For Women 2026

£38.24 £21.03 MILANOO
−58%Ax Paris Black Halter Neck Bubble Hem Mini Dress
DOROTHY PERKINS

Ax Paris Black Halter Neck Bubble Hem Mini Dress

£59.50 £24.99 DOROTHY PERKINS
−14%Jolie Moi Janice Square Neck Frill Midi Dress In Black
DOROTHY PERKINS

Jolie Moi Janice Square Neck Frill Midi Dress In Black

£29.07 £25.00 DOROTHY PERKINS
−58%Warehouse Women's Embellished Quilted Velvet Pinafore Dress in Black
MISSPAP

Warehouse Women's Embellished Quilted Velvet Pinafore Dress in Black

£59.52 £25.00 MISSPAP
−45%Square Neck Women Bubble Mini Dress With Big Bow - Black Long Sleeve Elegant Contrast - Audrey Style Spring Party Wear 2026
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%Izabel London Ikat Print Sleeveless A-Line Maxi Dress In Black
DOROTHY PERKINS

Izabel London Ikat Print Sleeveless A-Line Maxi Dress In Black

£50.48 £26.25 DOROTHY PERKINS
£50 to £1006 pieces