Carl Gustav Berg-Jæger (31 December 1884 – 1957) was a Norwegian journalist, actor, cultural director and Nazi collaborator.

He is best known as director of Oslo Kinematografer, the National Theatre and briefly the Norwegian Broadcasting Corporation during the occupation of Norway by Nazi Germany.

After resigning in protest from Kringkastingselskapet he worked as an actor as well as in the Norwegian branches of Metro-Goldwyn-Mayer and Paramount Pictures.

[1] In 1941 he was the screenwriter for the film Kjærlighet og vennskap, which was directed by fellow Nazi Leif Sinding and starred Sonja Wigert, Georg Løkkeberg, Per Aabel and Rønnaug Alten among others.

[2] After the end of the German occupation on 8 May 1945, he was arrested by the Norwegian authorities on 14 May and imprisoned at Ilebu prison until 1946.