The King's House on Schachen (German: Königshaus am Schachen) is a small villa (Schlösschen) at Schachen, Wetterstein Formation, about 10 km south of Garmisch-Partenkirchen, Bavaria, Germany, built by Ludwig II of Bavaria. The house was constructed between 1869 and 1872.

The King's House on Schachen is located at Schachen, at an altitude with a view of the dramatic mountain backdrop of the Wetterstein Formation, about 10 km south of Garmisch-Partenkirchen, Bavaria. It can only be reached via a 10 km forest road, or a three-hour hike, ascending 1000m either from Schloss Elmau or Garmisch-Partenkirchen, which provides a view of Zugspitze amongst others.

The King's House on Schachen was built between 1869 and 1872 for Ludwig II of Bavaria and designed by architect Georg von Dollmann. It is often described as a hunting lodge, though Ludwig never used it for this purpose, as he didn't like to hunt, instead utilizing it for birthday and anniversary celebrations. The building is the least-known of the palaces built by Ludwig. One room known as the "Turkish or Moorish Room" occupies the entire upper-floor of the castle, and is elaborately decorated in an Oriental fashion. The extravagant upstairs interior stands in stark contrast to the exterior and ground floor, which are rather modestly built in the style of alpine chalets, as they were often built as excursion restaurants.

Adjacent to the house itself is the Alpengarten auf dem Schachen on about one hectare, an alpine botanical garden at about 2000m altitude, which contains over 1,000 plant species from the Alps to the Himalayas. It is maintained by the Botanischer Garten München-Nymphenburg, open during the summer months daily from 8 am to 5 pm, admission cost 2.50 euros as of 2018. Although the Wetterstein Mountains are primarily limestone, the limestone and dolomite weather differently: dolomite decomposes into a shard and splinter debris on which some plants thrive particularly well. Lime weathers chemically, calcifications arise, in which water quickly seeps away. On the other hand, the sandstone provides for loamy and low-limestone soils that hold water well.

Altogether 42 plant beds are assigned to different geographical regions, the flora of the Bavarian forest, the Alps, Carpathians, Patagonia, the Rocky Mountains - and the Himalayas.

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  The Reintal valley
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  King's House taken from the Bockhütte in Reintal
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  Illustrations of the Moorish Hall at the time it was built
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• Official website
• King Ludwig II and his castles
• Alpengarten auf dem Schachen Archived 2009-04-08 at the Wayback Machine
• Konigshaus am Schachen Story and photos of the King's House