The Hay Wain is an 1821 painting by the English artist John Constable.
The painting shows the River Stour in Suffolk, an area of England made famous by the painter; it is now commonly known as 'Constable Country'. Constable's focus on the ordinary landscapes around his home was unfashionable during his lifetime, when Romantic paintings of brooding ruins and swirling mists were all the rage. However, the painting is now considered iconic. It hangs in the National Gallery in London.