The Water Tower (originally known as the New Tower) is a 14th-century tower in Chester, Cheshire, England, which is attached by a spur wall to Bonewaldesthorne's Tower on the city walls. The tower, together with its spur wall, is designated by English Heritage as a Grade I listed building. The original name of the tower was New Tower but in the 17th century it became known as the Water Tower, although the City Assembly tried to insist on the usage of its correct name.