Huy (üēˈ) [key], Du. Hoie, commune (1991 pop. 18,197), Liège prov., E Belgium, on the Meuse River; founded in the 9th cent. Huy produces paper, pottery, pewter, and machinery; grains are grown in nearby fields. Below the citadel (19th cent.; now a military depot and a prison), which dominates the town, is a Gothic abbatial church (14th–15th cent.).