Hollenfels (Luxembourgish: Huelmes) is a village in the commune of Tuntange, in western Luxembourg. As of 2005[update], the village has a population of 238.
Hollenfels is famous for the huge keep of its imposing medieval castle overlooking the valley below.
Coordinates: 49°43′N 6°03′E / 49.717°N 6.050°E