Longstock is a village and civil parish in Hampshire, England. It lies on the western bank of the River Test, to the north of Stockbridge and to the west of Leckford. The parish has a population of around 450. The parish church, St Mary's, was largely rebuilt in the 1880s. The parish contains Longstock Park which adjoins the Leckford Estate; both are owned by the John Lewis Partnership. The village has a gastropub / freehouse called "The Peat Spade", which is one of the few buildings in the village which is not a thatched cottage.