Lacock is a village and civil parish in the rural county of Wiltshire, England, 3 miles (5 km) from the town of Chippenham. The village is owned almost in its entirety by the National Trust, and attracts many visitors by virtue of its unspoiled appearance.
The parish includes Bowden Hill, a small village to the east of Lacock, and the hamlet of Notton, the same distance to the northwest.
Lacock is mentioned in the Domesday book, with a population of 160–190; with two mills and a vineyard. Lacock Abbey was founded on the manorial lands by Ela, Countess of Salisbury and established in 1232; and the village — with the manor — formed its endowment to "God and St Mary". Lacock was granted a market and developed a thriving wool industry during the Middle Ages. Reybridge, and a packhorse ford, remained the only crossing points of the River Avon until the 18th century.
Most of the surviving houses are 18th-century or earlier in construction. There is a 14th-century tithe barn, the medieval St Cyriac's Church, an inn dating from the 15th century and an 18th-century lock-up.
In 1916 Charles Henry Fox Talbot bequeathed the Lacock estate to his niece, Matilda Gilchrist-Clark, who took the name of Talbot. The estate – comprising , the Abbey and the village – was given to the National Trust in 1944 by Matilda Talbot.