Drude Elisabeth Berntsen (born 1939) is a Norwegian computer scientist who was director of the Norwegian Computing Center (Norsk Regnesentral) from 1970 to 1990.
It was unusual for a women to hold such a high-ranking position at a time of male dominance in computing.Berntsen's publications include a survey of early Norwegian computing developments titled "The Pioneer Era in Norwegian Scientific Computing (1948–1962)".
and a biography of Kristen Nygaard, The Many Dimensions of Kristen Nygaard, Creator of Object-Oriented Programming and the Scandinavian School of System Development.