Warminster is a town and civil parish in western Wiltshire, England, by-passed by the A36 (between Salisbury and Bath) and the partly concurrent A350 between Westbury and Blandford Forum. It has a population of about 17,000. The River Were runs through the town and can be seen running through the middle of the town park. The Minster Church of St Denys sits on the River Were. The name Warminster first occurs in the early 10th century.