Burg Frauenstein may refer to:
Castles in Germany: Burg Frauenstein (Bad Lauterberg), Bad Lauterberg, Lower Saxony Burgruine Frauenstein (Erzgebirge) in Frauenstein, Saxony Burgstall Frauenstein Hohenschwangau in Bavaria Burg Frauenstein (Pfalz), Ruppertsecken in Rhineland-Palatinate Burg Frauenstein (Winklarn), Winklarn in Bavaria Burg Frauenstein (Wiesbaden) in Wiesbaden-Frauenstein in Hesse Castle in Austria: Burg Frauenstein (Mining) near Braunau am Inn