Schloss Baumgarten, Stately home in Ollersbach, Neulengbach, Austria

Schloss Baumgarten is a country château in Ollersbach, part of Neulengbach in Lower Austria, built around a courtyard with a two-storey south main wing and three other wings raised to two storeys after 1683. It is a listed monument; the interior was modernised after a 1945 fire.

Baumgarten was first mentioned in 1074 as a castle held by the Formbach family in Adelgeresbach, today's Ollersbach. The ministerials of Totzenbach, later calling themselves "zu Baumgarten", followed them. In 1565 the counts Trauttmansdorff owned the complex and converted the castle into a château. In 1683 Turkish raiding parties destroyed the weakly fortified building; it was soon rebuilt, the southern main wing reduced from three storeys to two while the other three wings were raised to two storeys.

The name Baumgarten refers to the estate's role as the centre of a working farm, which is what made it valuable to the noble families who held it. The counts Trauttmansdorff converted the earlier castle into a château in 1565. Since 2001 the property has belonged to the Wimmer-Schick family, and a veterinary practice operates inside the building.

The property functions as a private residence and veterinary practice today, though certain areas can be rented for seminars and business meetings. Visitors should know that access is limited to specific sections available for these events.

The castle was never a fortress or administrative center; it was the economic hub of an estate whose noble owners rarely lived there, preferring residences on more important domains. In 2001 it was auctioned and bought by the Wimmer-Schick family, who run a veterinary practice inside.