a market-town of England, county of Wilts, on the Willey, at the western extremity of Salisbury Plain, 21 miles N.W. of Salisbury. It consists chiefly of one main street, nearly a mile in length, wide, clean, and well paved. The parish church is a spacious and handsome structure, in the perpendicular style, with a square central tower. There is also a new church, built partly by subscription in 1830; a chapel of ease, and several dissenting places of worship. The town-hall is a handsome building in the Elizabethan style, rebuilt in 1831 by the Marquis of Bath, and contains elegant halls for public meetings, assemblies, &c. There are a free grammar school and other educational institutions in the town. A very extensive trade in corn is carried on here, and the making of malt and haircloth-weaving are the chief branches of industry. Warminster is supposed to have been a Roman station, and numerous antiquities have been found in the vicinity. Pop. (1851) 4220.