Hans Fredrik Dahl is a Norwegian historian, journalist and media scholar, best known in the English-speaking world for his biography of Vidkun Quisling, a Nazi collaborationist and Minister President for Norway during the Second World War. His research is focused on media history, the totalitarian ideologies of the 20th century, and the Second World War. He served as culture editor of Dagbladet 1978–1985 and has been a board member of the paper since 1996. He was a professor at the University of Oslo 1988–2009, and is now a professor emeritus.
