Schloss Bogenhofen, Manor house in Sankt Peter am Hart, Austria.

Schloss Bogenhofen is a two-storey, rectangular Empire-style manor house built in 1834 in Sankt Peter am Hart, Upper Austria. It replaced a decayed moated castle that stood on an island in the nearby pond. The building has a projecting central risalit, a triangular pediment and a simply broken hipped roof. Since 1949 it has housed Seminar Schloss Bogenhofen, a Seventh-day Adventist school with a state-recognised secondary college and boarding house.

Bogenhofen was first a single-storey wooden building, sold in 1438 by Hanns Rohrer to Bavarian chancellor Andreas Loder; in 1451 Duke Ludwig of Lower Bavaria granted it court-mark rights. The present Empire-style building was begun in 1834 by Kajetan and Josephine Plaichinger on the site of a decayed moated castle that had stood on an island in the nearby pond. The Seventh-day Adventist Church bought the estate in 1949 and converted it into Seminar Schloss Bogenhofen.

Since 1949 the Seventh-day Adventist Church has run a school here, Seminar Schloss Bogenhofen. It combines theological studies with a state-recognised Oberstufenrealgymnasium teaching instrumental music and health education, and an attached boarding house where pupils from many countries live and learn.

The property is accessible through organized visits or academic events since it functions primarily as an active educational institution. Visitors should contact in advance to arrange access and learn about the best times to visit.

The present building dates from 1834 and was erected on the site of a decayed moated castle that stood on an island in the nearby pond. The older seat was a single-storey wooden structure, which Michael Wening's copper engraving shows looking more like a farmstead than a castle.