Schloss Weyer is a water castle in Kematen an der Krems, Upper Austria, with origins tracing to monastic holdings of Kremsmünster Abbey, first recorded in monastery records from 1299. The three-story Renaissance structure is distinguished by four towers: three round towers with pointed roofs and a fourth square tower with steep roof at the entrance side. Over the centuries, ownership passed through various noble families including the Raidt, Wiellinger, Fenzl, and other prominent dynasties before returning to monastic control in 1769. A significant neo-Gothicized renovation occurred in 1871, and since 2012 the castle has undergone comprehensive restoration including underground infrastructure modifications.