Klas Albert Lindhagen (July 25, 1823 – October 21, 1887) was a Swedish city planner, lawyer, and politician.
[1] He is mostly remembered for his city plans for Stockholm produced in the late 19th century.
He worked at the Svea Court of Appeal from 1854, at the Ministry for Civil Service Affairs from 1864, the Office of the Minister for Justice (Justitiestatsexpeditionen) from 1869, was member of the Legislation Committee (Lagbyrån) from 1871, and Justice of the Supreme Court 1874–1886.
[1] He made important contributions to the health, fire safety, and construction charters of 1868 and 1874.
As such, he had a lasting impact on the redevelopment of Stockholm's city plans and sanitary conditions, and was a leading force behind the reorganisation of the University of Stockholm.