Schloss Hüttenstein, Neo-Gothic castle in Sankt Gilgen, Austria

Schloss Hüttenstein is a Neo-Gothic castle in Sankt Gilgen, Austria, situated between the Wolfgangsee and Mondsee lakes, with four octagonal corner towers and a projecting central section fitted with bay windows. The structure rises on a rocky base, giving it a position that makes it visible from different angles across the surrounding water.

The original fortress north of the present site was first mentioned as Huetenstain in 1323, after the area passed from the Diocese of Regensburg to Salzburg in 1286. Around 1400 Hüttenstein became a court seat, and in the second half of the 16th century a new official residence was built for the Salzburg pflegers. Carl Theodor von Wrede had the ruinous building rebuilt in Neo-Gothic style from 1843, modelled on English Tudor Gothic palaces.

The gate of the estate bears the large initials R W, referring to Robert Wimmer, who acquired the castle in 1982. The building is privately owned and inhabited, so it can only be viewed from outside. South of the main building stands the Schlossmayr, the former meierhof, and the group of Hüttenstein comprises four addresses and about a dozen buildings.

The castle is privately owned and cannot be entered, but it can be seen from the paths around the nearby Krottensee. The view from the water side is the clearest, as the towers rise above the treeline from that direction.

The gate of the estate bears the large initials R W, referring to Robert Wimmer, who acquired the castle in 1982. The building is not open to the public and, together with the adjacent Krotensee, belongs to a private foundation.