Halstock is a village and civil parish in the county of Dorset in southern England, situated approximately five miles (8.0 km) south of Yeovil in Somerset. It lies on the route of the ancient Harrow Way. In the 2011 census the parish had a population of 546. Halstock formerly constituted a liberty, containing only the parish itself. It was the site of the martyrdom of Saint Juthwara (Juthware), and a Romano-British Villa excavated between 1967 and 1985.