Willy Lott's Cottage is a house in Flatford, East Bergholt, Suffolk, England which appears in several paintings by John Constable, notably The Hay Wain.

The property is Grade I listed, reflecting its importance "as part of the Flatford Mill group" and "its significance in the work of the artist John Constable".

The earliest part of the building is sixteenth century. It was restored in the 1920s after a revival of interest in Constable's paintings. It has been renamed Willy Lott's House because that is the name Constable used in his paintings. It is owned by the National Trust.

The cottage is located on the bank of the River Stour, just downstream from Flatford Mill in the heart of Dedham Vale, a typically English rural landscape. Flatford Mill, along with neighbouring Valley Farm and Bridge Cottage, are leased to the Field Studies Council, which uses them as locations for arts-based courses such as painting, and as accommodation for science-based courses such as residential ecology trips for students up to A-level.

'The Story of Willy Lott and his Cottage' has recently been written and published by Brian Lott, the gt-gt-gt-grandson of Willy's brother John Lott (1758-1827). It is a delightful read for art enthusiasts and history buffs interested in delving deeper into the history of Willy Lott and his family in Flatford, their connection to the cottage and the context behind Constable's paintings.

The cottage takes its name from its resident at the time John Constable did his paintings, when the house was known as Gibeons Farm. William Lott (1761–1849), a tenant farmer, resided at Gibeons Farm and spent only four nights away from this house in the whole of his life. He is buried at St Mary the Virgin Churchyard in East Bergholt.

According to a 2020 article, "Willy Lott himself became famous thanks to Constable, but only after his death". The cottage was purchased in 1926 by Thomas Parkington; after his death, the National Trust purchased it from his estate.

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  Willy Lott's House from the Stour, 1818
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  Willy Lott's Cottage by John Constable, circa 1820
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  The Hay Wain by John Constable, 1821
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  Willy Lott's Cottage by John Constable, 1832

• Map sources for Willy Lott's Cottage
• Historic England. "Details from listed building database (1033438)". National Heritage List for England.
• National Trust - Willy Lott's House
• Constable's England, a full text exhibition catalog from The Metropolitan Museum of Art, which contains material on Willy Lott's Cottage

51°57′30″N 1°1′19″E / 51.95833°N 1.02194°E / 51.95833; 1.02194