Hoher Stein, Observation tower and natural monument in Plauen district, Dresden, Germany.

Hoher Stein is an observation tower built on a rock formation in the Plauenschen Grund valley near Dresden, Germany. The stone structure rises roughly 12 meters and provides views across the valley and surrounding landscape beyond.

Friedrich August Frohberg built the tower in 1864 after acquiring the land and establishing an inn called Zum Hohen Stein on the site. The structure underwent major renovation in 1928 when it received reinforced walls and a new roof.

The tower carries a bust of King Friedrich August II with the inscription "Frohbergs Burg 1864", placed by builder Friedrich August Frohberg. Locals later dropped the builder's name and called the tower simply Hoher Stein. The site is now a protected Kulturdenkmal, and the tower and memorial stone are listed together.

The tower stands on the Hoher Stein rock above the Plauenschen Grund in Dresden-Plauen. The 9.5-metre viewing platform is reached by climbing the tower; the surrounding paths and the nearby rock ledges opened in 1882 connect the site with the Upper Bienert Park to the north. The tower was closed in 1996 and reopened in December 2003 after renovation.

The rock contains a wave-cut notch filled with monzonite rubble and marl, holding macro- and microfossils from the upper Cenomanian. They record a shallow, near-coast setting in the Upper Cretaceous sea. The tower itself is 12 m high, with a viewing platform at 9.5 m.