Anders Sigurd Lange (5 September 1904 – 18 October 1974) was a Norwegian political organiser, speaker and editor who led his eponymously named political party Anders Lange's Party into parliament in 1973.
Educated as a forestry technician, Lange got involved in politics following his stay in Argentina in the late 1920s. He joined the right-wing Fatherland League organisation upon his return to Norway in 1929, and he became a popular speaker at public rallies. His provocative style however often led to controversies. Although his agitation was chiefly directed against the political left, he also rejected the efforts of the far-right. He left the organisation in 1938 to join Landsforeningen Norges Sjøforsvar, where he agitated for strengthening the Norwegian armed forces and warned against the future world war. He was initially blocked from entering the organised Norwegian resistance during the Second World War, but nonetheless did work to assist resistance members, and he was arrested by the Germans and imprisoned twice.