Hosta

Helfenstein can refer to:

House of Helfenstein, a German noble family
Helfenstein Castle, a ruined castle near Geislingen an der Steige, Baden-Württemberg, Germany; the former seat of the House of Helfenstein
Helfenstein (Habichtswald), a hill in Hesse, Germany
Château de Helfenstein, a ruined castle near Éguelshardt, Lorraine, France
8067 Helfenstein, a comet
Sven Helfenstein (born 1982), Swiss ice hockey player