Magne Hagen (born 25 January 1938) is a retired Norwegian royal servant.
Hagen started with a military career, and held the rank of lieutenant colonel.
He was first hired in the Royal Court in 1974, as an aide-de-camp of King Olav V. He became private secretary in 1979.
[1] When Olav V died in 1991 and was replaced with Harald V, Hagen continued as private secretary.
[2] In the beginning of that year, it was noted that the entire court of the Norwegian royal family comprised as little as nine people: Hagen, Ingvald M. Smith-Kielland, Kaare Langlete, Ingegjerd Løvenskiold, Gunerius Flakstad and Barbara Iliff.