Kristofer Andreas Lange (6 September 1886 – 27 April 1977) was a Norwegian architect.
He was son of architect Balthazar Lange (1854-1937) and his wife, Elise Klöcker (1857-1934).
He continued his studies at Königliche Technische Hochschule, Charlottenburg in Berlin (1911–12).
He worked as an assistant of architect Henrik Bull (1909–11) and (1912–13).
[2] He received a number of municipal government assignments and is most associated with the regulation plan Solgryten for the area Sogn along the Sognsvann Line in Oslo during the 1920s.