Theux (French pronunciation: [tø]; Walloon: Teu) is a municipality of Wallonia located in the province of Liège, Belgium. On 1 January 2006 the municipality had 11,571 inhabitants. The total area is 83.36 km², giving a population density of 139 inhabitants per km². The municipality consists of the following districts: , , and Theux (including the hamlet of Tancrémont).