Libin is a Walloon municipality of Belgium located in the province of Luxembourg. On 1 January 2007 the municipality, which covers 139.72 km², had 4,655 inhabitants, giving a population density of 33.3 inhabitants per km².
The municipality consists of the following sub-municipalities: Libin proper, Anloy, Ochamps, Redu, Smuid, Transinne, and Villance. Other population centers include: Glaireuse, Hamaide, Lesse, Libin-Bas, Libin-Haut, and Sèchery.
Redu is famous for its bookshops, and for hosting a large European Space Agency ground station. Also in the municipality is the Euro Space Center tourist attraction, close to Transinne.