Schloss Rohrbach, Medieval castle in Weistrach, Austria.

Schloss Rohrbach is a castle northwest of Weistrach's centre, just off the road to Haag in Lower Austria. Its present form dates mainly from the 16th and 17th centuries, built on a site that was originally Bamberg property and later the seat of the knights von Rohrbach.

The castle was first mentioned in 1370 and belonged to the Rohrbach family, who served as advisors to Emperor Friedrich III in the 15th century. This close connection to the imperial court shows the family held significant influence in the region.

The castle's name comes from the Rohrbach knights, first documented in a 1370 Mass endowment. In the mid-17th century the line died out with Hans Adam, and his widow Anna Margarethe married the Silesian-born Protestant poet and farmer Wolf Helmhardt von Hohberg, who acquired the estate before selling it in 1664.

Schloss Rohrbach stands just outside Weistrach's centre on the Bundesstraße toward Haag in Lower Austria. It is privately owned and lived in by the Mautner Markhof family, descendants of the Risenfels line, so the interior is not open to visitors. The building can be viewed and photographed from the public road.

The Rohrbach line died out with Hans Adam in the mid-17th century. His widow Anna Margarethe von Puchheim then married Wolf Helmhardt von Hohberg, a Protestant poet and farmer from Silesia, who bought the estate from his stepdaughters in 1659. Forced into exile in Regensburg in 1664, he sold Rohrbach to the Tyrolean merchant Matthäus Riss von Risenfels, whose descendants still own it.