Trooz (French pronunciation: [tʁo]; Walloon: LiTrô) is a municipality of Wallonia located in the province of Liège, Belgium.
On 1 July 2012 Trooz had 8,432 registered inhabitants, of whom 4,199 were male and 4,233 female.
[2] Trooz is situated on the Vesdre River, and is part of the GREOA (Groupement Régional Économique des vallées de l'Ourthe et de l'Amblève) regional grouping for economic purposes.
The municipality consists of the following districts: Forêt, Fraipont, Nessonvaux.
The town centre is the former hamlet of Trooz, in the district of Forêt, which gave its name to the municipality.