The Chiers (Luxembourgish:Kuer, German:Korn) is a river in Luxembourg, Belgium and France. It is a right tributary to the river Meuse. Its total length is about 130 kilometres (81mi).
The source of the Chiers is near Differdange, in Luxembourg. The Chiers flows roughly in western direction, and crosses the border with Belgium and flows through Athus (province of Luxembourg).