Dagstuhl Castle (in German: Burgruine Dagstuhl or Burg Dagstuhl) is a ruined castle on the top of a hill near the town of Wadern, kreis Merzig-Wadern, in Saarland, Germany. It overlooks the newer Schloss Dagstuhl in the valley below, which is historic, but has been converted for use as a meeting centre for computer science.

The castle was founded by Knight Boemund of Saarbrücken sometime before 1290, probably for Bohemond I von Warnesberg, Archbishop of Trier. The name derives from the German word for roof, "Dach", because of the roof-like shape of the hill on which the castle stands.^[1]

The castle ruins have been archaeologically explored and were improved for public access in 2004.

• Schloss Dagstuhl

• "Burg Dagstuhl en | Burgruine Dagstuhl". Stadt Wadern. 2024.
• Dittmar Lauer (2009-08-31). "Burg und Herrschaft Dagstuhl" (in German). Archived from the original on 2013-08-29. Retrieved 2024-05-24.

49°31′52″N 6°53′47″E / 49.5311°N 6.8965°E / 49.5311; 6.8965

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