Schloss Klamm, Medieval castle in Obsteig, Austria.

Schloss Klamm is a medieval castle near Obsteig in the Austrian Tyrol, set on a hillside above the valley with thick stone walls and several towers. The protected monument brings together residential rooms, a chapel, and service spaces within a single fortified complex built entirely from local stone.

Built around 1220–1230, Klamm was held by the Lords of Milser from 1318, divided between brothers in 1374 and passed to the Starkenbergs after a inheritance dispute. From 1447 a series of caretakers administered it, notably Hans Frech, who carried out major building works; the castle stayed with the Frech family until 1645. In 1688 it went to chancellor Franz Christoph Raßler, in 1692 to the timber merchant Thomas Hirn, and in 1913 to Berlin businessman Franz Sallentien, who remodelled it. A fire destroyed the entire roof structure on 19 April 2011; it was restored by 2016.

The name "Klamm" refers to a narrow gorge or tight passage, pointing to the strategic position the building once held in the landscape. Visitors who walk around the site can still read this relationship between the structure and the terrain it once controlled.

The castle is reached on foot from Obsteig along marked trails, some of which are steep and require sturdy shoes. Conditions at higher elevations can change fast depending on the season, so it is worth checking the weather before setting out.

From 1992 to 1999 the castle served as the backdrop for "Schloss Brauneck" in the 92-part television series Der Bergdoktor. A late-Gothic parlour was bought from Burg Taufers in 1965 and a separate annex was built to house it. On 19 April 2011 a fire destroyed the entire roof structure, which was restored by 2016.