Rosenburg is a castle in the municipality Rosenburg-Mold, Lower Austria, Austria. Rosenburg is situated on a cliff above the valley of the River Kamp at a height of 345 meters. It is one of Austria's most visited Renaissance castles. It is situated in the middle of a nature reserve - the Naturpark Kamptal - which adds to its appeal. There are various castles and fortifications in Austria and Germany that bear the name "Rosenburg", but if people use the term without further specifications, it may be understood that they refer to the this site in Lower Austria.