Thorskogs Grand Manor House, Manor house in Västerlanda, Sweden

Thorskogs slott is a castle-like building in Torskog, Lilla Edet Municipality, Bohuslän, on the west bank of the Göta älv, a few hundred metres from the river. It was built in 1892 to drawings by Carl Fahlström and has served as a hotel and conference venue since 1986, with 40 furnished rooms and restaurant facilities.

The manor was built in 1892 by shipyard owner Petter Larson. The land it stands on was reportedly the site of a meeting between King Haakon of Norway and Earl Birger of Sweden in 1249.

The name Thorskog links to the 1249 peace of Thors-kabokke, sealed by the marriage contract between Håkon the Young and Birger jarl's daughter Rikissa. Since 1986 the house has run as a hotel and conference venue, and in 1998 the large function floor Orangeriet was added in the park. The 2009 and 2010 seasons of the SVT show Stjärnorna på slottet were recorded here.

The manor operates as a hotel and conference venue with 40 furnished rooms and restaurant facilities, open to the public. It stands on the western bank of the Göta älv, a couple of hundred metres from the river, in Torskog, Lilla Edet Municipality. The grounds include a park with buildings added in the 1990s, among them the Orangeriet function hall from 1998.

In 2009 and 2010, the manor was used as a filming location for the Swedish television series Stjärnorna på slottet, which featured Swedish celebrities staying at the property. The filming took place in the actual rooms of the house, giving the building an unusual kind of recognition across Sweden.