Schloss Lichtenberg, Renaissance castle in Fischbachtal, Germany

Schloss Lichtenberg is a Renaissance castle overlooking Fischbachtal with distinctive stepped gables and symmetrical window arrangements across its facades. The complex includes multiple buildings, a fortified courtyard, and extensive grounds offering views over the surrounding forested landscape.

A castle existed at Lichtenberg by around 1200, held by the Counts of Katzenelnbogen; it was first documented in 1228 and passed to the Landgraves of Hesse in 1479 after the last Katzenelnbogen count died. From 1570 to 1581, stonemason Jakob Kesselhut built a Renaissance palace for Landgrave Georg I of Hesse-Darmstadt, keeping the Katzenelnbogen building and the eastern outer wall. The castle was never taken during the Thirty Years' War.

The castle now houses the Odenwald landscape museum on three floors and often hosts concerts. Its name is shared with Georg Christoph Lichtenberg, the physicist and writer born in 1742 in nearby Ober-Ramstadt, who died in Göttingen in 1799.

The castle stands at 278 m above sea level in the Lichtenberg district of Fischbachtal. A campsite with a natural swimming pool lies directly below the castle hill; the pool is open from June to the end of August and can be used by non-campers for a small daily fee. The 1503 bastion in front of the castle can still be visited.

The castle houses the Odenwald landscape museum across three floors and often hosts concerts. It was the first Renaissance castle in southern Hesse and served as a model for later buildings in the region, including the castle in Darmstadt.