Alsing Emanuel Andersen (5 February 1893 – 5 December 1962) was a Danish social democrat politician. Andersen served as the Minister of Defense (1935–1940) for Denmark. From 8 July 1940 to 1945, he served as the vice chairman of the Danish Social Democratic Party, and as the acting chairman of the party from the death of Thorvald Stauning (3 May 1942) until the end of the Nazi occupation of Denmark in 1945. Andersen briefly returned to national politics as the Minister of the Interior from 13 to 23 November 1947.