The LercheHouse (Danish: Den Lercheske Gård), also known as the Lerche Mansion (Danish: Lerches Palæ) and formerly as the Württembergsk Mansion (Danish: Württembergske Palæ), is a listed building in Slotsholmsgade on the island of Slotsholmen in central Copenhagen, Denmark.

He was one of the many relatives of Queen Sophie Magdalene, who came to Denmark in the years after 1730 and belonged to the inner circle around the king.

The building was expanded with an extra floor when it was acquired by the Danish state to make room for the growing central administration in 1805.

Among the partly surviving interiors is a dining room with murals and door pieces by Jacob Fabris.

Prior to the 2015 Danish general election, it housed the Ministry of Economy.