Top Picks
Warehouse Women's Cotton Shirred Square Neck Midi Dress in Black
HANNAH’S PICK MISSPAPWarehouse Women's Cotton Shirred Square Neck Midi Dress in Black
£64.71 £22.00 MISSPAP
Vintage Square-Neck Midi Dress In Black For Summer 2026
TAMSIN’S PICK MILANOOVintage Square-Neck Midi Dress In Black For Summer 2026
£31.16 £21.81 MILANOO
Ring Detail Milkmaid Mini Dress - 8 / BLACK
MAGGIE’S PICK BLUE VANILLARing Detail Milkmaid Mini Dress - 8 / BLACK
£25.86 £15.00 BLUE VANILLA
Roman Polka Dot Strappy Dress In Black
CHLOE’S PICK DOROTHY PERKINSRoman Polka Dot Strappy Dress In Black
£52.05 £38.00 DOROTHY PERKINS
Roman Floral Print Tiered Midi Dress In Black
FREYA’S PICK DOROTHY PERKINSRoman Floral Print Tiered Midi Dress In Black
£62.34 £48.00 DOROTHY PERKINS
How we pick

Every collection on What She Wears starts with a pile of products and ends with a short list chosen by real women. For black square neck summer dress, that was Hannah, Tamsin, Maggie, Chloe and Freya. They looked at shape, fabric, reviews where there were any and, honestly, whether it made them want to wear it this weekend. Things that look great on a model and terrible on a hanger tend to get cut. The full list underneath is everything that matched, from lots of different shops, so you can still have a proper browse.

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

Under £5012 pieces
Premium Black Woven Square Neck Lace Back Corset Dress
PRETTYLITTLETHING

Premium Black Woven Square Neck Lace Back Corset Dress

£41.60 PRETTYLITTLETHING
−42%Ring Detail Milkmaid Mini Dress - 8 / BLACK
BLUE VANILLA

Ring Detail Milkmaid Mini Dress - 8 / BLACK

£25.86 £15.00 BLUE VANILLA
−30%Vintage Square-Neck Midi Dress In Black For Summer 2026
MILANOO

Vintage Square-Neck Midi Dress In Black For Summer 2026

£31.16 £21.81 MILANOO
−66%Warehouse Women's Cotton Shirred Square Neck Midi Dress in Black
MISSPAP

Warehouse Women's Cotton Shirred Square Neck Midi Dress in Black

£64.71 £22.00 MISSPAP
−42%Roman Seersucker Button Midi Sundress In Black
DOROTHY PERKINS

Roman Seersucker Button Midi Sundress In Black

£48.28 £28.00 DOROTHY PERKINS
−25%Roman Pineapple Print Strappy Midi Dress In Black
DOROTHY PERKINS

Roman Pineapple Print Strappy Midi Dress In Black

£48.00 £36.00 DOROTHY PERKINS
−27%Roman Polka Dot Strappy Dress In Black
DOROTHY PERKINS

Roman Polka Dot Strappy Dress In Black

£52.05 £38.00 DOROTHY PERKINS
−27%Roman Leaf Print Shirred Maxi Dress In Black
DOROTHY PERKINS

Roman Leaf Print Shirred Maxi Dress In Black

£52.05 £38.00 DOROTHY PERKINS
−25%Roman Paisley Ric Rac Maxi Dress In Black
DOROTHY PERKINS

Roman Paisley Ric Rac Maxi Dress In Black

£60.00 £45.00 DOROTHY PERKINS
−25%Roman Square Neck Midi Dress In Black
DOROTHY PERKINS

Roman Square Neck Midi Dress In Black

£60.00 £45.00 DOROTHY PERKINS
−25%Roman Curve Strappy Shirred Midi Dress In Black
DOROTHY PERKINS

Roman Curve Strappy Shirred Midi Dress In Black

£60.00 £45.00 DOROTHY PERKINS
−23%Roman Floral Print Tiered Midi Dress In Black
DOROTHY PERKINS

Roman Floral Print Tiered Midi Dress In Black

£62.34 £48.00 DOROTHY PERKINS
£50 to £1005 pieces
Ax Paris Black And Cerise Floral Print Square Neck A-Line Midi Dress
DOROTHY PERKINS

Ax Paris Black And Cerise Floral Print Square Neck A-Line Midi Dress

£60.00 DOROTHY PERKINS
Ax Paris Black And Green Floral Print Square Neck A-Line Midi Dress
DOROTHY PERKINS

Ax Paris Black And Green Floral Print Square Neck A-Line Midi Dress

£60.00 DOROTHY PERKINS
Square Neck Scalloped Crochet Sleeve Velvet Midi Dress - Black by Goddiva
GODDIVA

Square Neck Scalloped Crochet Sleeve Velvet Midi Dress - Black by Goddiva

£95.00 GODDIVA
Goddiva Square Neck Scalloped Crochet Sleeve Velvet Midi Dress
GODDIVA

Goddiva Square Neck Scalloped Crochet Sleeve Velvet Midi Dress

£95.00 GODDIVA
−30%Lyrical Sisters Sleeveless Broderie Maxi Dress Black
MONSOON

Lyrical Sisters Sleeveless Broderie Maxi Dress Black

£135.00 £94.50 MONSOON

More like this

See all in Square Neck Dresses →
Square Neck Long Sleeve Dresses That Do All the Work for YouSquare Neck DressesSquare Neck Long Sleeve Dresses That Do All the Work for YouSquare Neck Short Sleeve Midi Dresses We’d Recommend to a FriendSquare Neck DressesSquare Neck Short Sleeve Midi Dresses We’d Recommend to a FriendBlack Square Neck Maxi Dresses That Do All the Work for YouSquare Neck DressesBlack Square Neck Maxi Dresses That Do All the Work for YouFinding the Best Square Neck Bodycon DressesSquare Neck DressesFinding the Best Square Neck Bodycon DressesWhite Square Neck A Line Dresses That Make Getting Dressed EasySquare Neck DressesWhite Square Neck A Line Dresses That Make Getting Dressed EasySquare Neck Floral Dresses That Feel SpecialSquare Neck DressesSquare Neck Floral Dresses That Feel Special