Welkenraedt (; Ripuarian: ; ) is a municipality of Wallonia located in the province of Liège, Belgium.
On January 1, 2018, Welkenraedt had a total population of 9,920. The total area is 24.47 km<sup>2</sup> which gives a population density of 405 inhabitants per km<sup>2</sup>.
The municipality consists of the following districts: Henri-Chapelle and Welkenraedt.
The town and former municipality of Henri-Chapelle is home to the Henri-Chapelle American Cemetery and Memorial which contains the graves of 7,992 members of the American military who died in World War II.