Sélange (Luxembourgish: Séilen; German: Selingen; Walloon: Sélindje) is a village in Wallonia and a district of the municipality of Messancy, located in the province of Luxembourg, Belgium. Nearby is the source of the River Eisch.
In 1978, 697 residents were recorded. In 1990, 729 residents were recorded and on 1 June 2006, 793 residents were recorded.[citation needed]