Cornsay is a hamlet and civil parish in County Durham, England.

It consists of nineteen dwellings, including four farms & is the home of Greenacres nudist club.

All formerly belonged to Ushaw College for the training of Catholic priests, hence the organised nomenclature.

On the village green is the enigmatic ‘draw well’: at first look a bus shelter but on closer inspection a building with a 17th-century dedication.

It was restored in 2007 by the removal of a breeze-block infill blocking the doorway and now has a new wrought-iron gate allowing inspection of the interior of the building.