Wellenstein (German pronunciation: [ˈvɛlənʃtaɪn]; Luxembourgish: Wellesteen) is a small town in southeastern Luxembourg. It is part of the canton of Remich, which is part of the district of Grevenmacher.
It used to be a commune with its administrative centre at Bech-Kleinmacher, until it was merged into Schengen (along with Burmerange) in 2011.