Karl-Edwin Manshaus (born 19 February 1940) is a Norwegian businessperson and civil servant.
From 1984 to 1987 he served as counsellor in energy affairs at the Norwegian embassy in the United States.
From 1988 to 2004 he was the permanent under-secretary of state in the Ministry of Petroleum and Energy, the highest-ranking bureaucratic position.
He was decorated as a Knight, First Class of the Royal Norwegian Order of St. Olav and a Chevalier of the Legion of Honour.
This Norwegian business biographical article is a stub.