Dag Østerberg was born on November 9, 1938, in Trondheim and died on February 22, 2017.

He was a Norwegian sociologist, philosopher, and musicologist.

His parents were police officer Erling Østerberg and Jørgine Sofie Kleven.

Dag Østerberg was a central contributor to the so-called positivism debate in the 1960s and 1970s.

Østerberg was appointed a professor in sociology at the University of Oslo, from 1981 to 1991.

His work includes Metasosiologisk Essay from 1963, Makt og materiell from 1971, and a biography of Jean-Paul Sartre from 1993.

Dag Østerberg’s 1966 work Forståelsesformer. Et filosofisk bidrag (Forms of Understanding: A Philosophical Contribution) was selected for the Norwegian Sociology Canon in 2009–2011.

Dag Østerberg passed away at 78 years old.