Schloss Imbshausen, Neo-Gothic château in Northeim, Germany.

Schloss Imbshausen is the manor house of the former Stralenheim estate in Imbshausen, built in 1862–1864 to plans by Hanover architect Julius Rasch in the neo-Gothic style. The red brick building has three parts: a main wing, a side wing and a tower-like annex. Its facades are divided by projecting bays, decorative tracery and pointed-arch blind niches spanning several storeys. A water ditch of the earlier house is still faintly visible.

The core of Imbshausen village lay on the estate where the castle stands, with building traces reaching back to the 11th century. Around 1013 the fortified farm of the Saxon Immedinger family passed to the Bishopric of Paderborn under Bishop Meinwerk. Around 1561 the estate came to Sievert von Steinberg, and his successor Adrian von Steinberg had a new manor house built on the site. In 1750 the estate passed by marriage to the Barons von Stralenheim, who had the present house built in 1862–1864.

The village name was once Immundshusen before becoming Imbshausen. From 1952 to 1998 the manor housed a Predigerseminar of the Evangelical Lutheran Church of Hanover, and in 1963 Henning Freiherr von Stralenheim gave the building to that church. After 1998 it passed to the Campus für Christus mission, which sold it for a symbolic five DM.

The roughly two-hectare castle park with its old trees belongs to the estate, which Carl-Christian von Plate Freiherr von Stralenheim, a descendant of the former owners, bought back in 2013. The house itself is a private residence, so visits are not a given; the meeting centre that once operated here closed on 1 November 2012.

The castle is considered the first asymmetrically designed building of the Hannover architectural school, marking a notable turning point in German architectural history. This unusual asymmetrical form was uncommon for neo-Gothic buildings of that era.