Bergshammars slott, Manor house in Strängnäs Municipality, Sweden

Bergshammars slott is a manor house in Strängnäs featuring a three-story stone structure with four separate wings. The building sits at the end of a 1.5-kilometer tree-lined avenue.

The name Bergshammar is known from the 14th century, but the estate's history begins in the 15th century when Ulf Bengtsson Färla assembled nearby properties. In 1530 it passed to Bengt Nilsson, and later to the Posse family. In 1720 Baron Johan Gabriel Sack owned it, and Joseph Gabriel Destain built the present manor between 1720 and 1727. It became a fideicommiss in 1751 and remained with the Sack family until 1938.

The name Bergshammar has been recorded since the 14th century, and the estate's history begins in the 15th century when Ulf Bengtsson Färla assembled nearby properties into one farm. The Sack family held it as a fideikommiss from 1751 until 1938, when Lennart Nathanson bought it and the entail was dissolved.

Bergshammar is privately owned and still farmed; a public golf course also operates on the grounds. The buildings are not open to tourists, so the 1.5-kilometre avenue from the north is the main way to see the estate from outside.

The library's musical scores ended up at the Statens musikbibliotek, while other books reached Skansen; the bulk was bought by the Björck & Börjessons antiquarian bookshop in the 1930s.