Kreyberg Einar Kringlen Gabriel Langfeldt Øivind Larsen Otto Lous Mohr G.H. Monrad-Krohn Sjur Olsnes Ole Petter Ottersen Jan Ivar Pedersen Alexander Pihl Edvard Poulsson Nils Retterstøl Torleiv Ole Rognum Bent Rolstad Ola Didrik Saugstad Carl Schiøtz Carl Semb Michael Skjelderup Jon Storm-Mathisen Axel Strøm Theodor Thjøtta Magnus Andreas Thulstrup Hans Jacob Ustvedt Guro Valen Lars Walløe Lars Weisæth Philosophers Arne Næss, philosopher Political scientists Bernt Hagtvet Janne Haaland Matlary, Professor of Political Science Hanne Marthe Narud Iver B. Neumann, Professor of Russian Studies Trond Nordby Hege Skjeie Thomas Christian Wyller Science Trude Storelvmo Sociologists and criminologists Dag Album Vilhelm Aubert Margunn Bjørnholt Grete Brochmann Nils Christie Ingrid Eide Fredrik Engelstad Ivar Frønes Johan Galtung, founder of peace and conflict studies, held the world's first chair in that discipline at the University of Oslo 1969–1977 Erik Grønseth Gudmund Hernes Sverre Holm Geir Høgsnes Ragnvald Kalleberg Suzanne Stiver Lie Ulla-Britt Lilleaas Sverre Lysgaard Arne Mastekaasa Thomas Mathiesen Willy Pedersen Natalie Rogoff Ramsøy Sigurd Skirbekk Dag Østerberg Social anthropology Fredrik Barth Unni Wikan Palaeontology Jørn Hurum, Professor at the Natural History Museum, known for his work on the Darwinius fossil Geology Adolf Hoel, one of the leading Arctic researchers in the first half of the 20th century; founder of the Norwegian Polar Institute; credited for Norway obtaining the sovereignty over Svalbard and Queen Maud Land; served as Rector of the university; namesake of the mineral hoelite and the Hoel Mountains Linguistics Didrik Arup Seip, Professor of North Germanic languages; served as Rector of the university Finn Thiesen Finn-Erik Vinje Notable alumni Heads of government Otto Albert Blehr, Prime Minister of Norway (cand. jur.) Gro Harlem Brundtland, Prime Minister of Norway (cand. med.) Ingolf Elster Christensen, Chairman of the Administrative Council (cand. jur.) Francis Hagerup, Prime Minister of Norway (cand. jur. and dr. juris.); Professor of Law at the University of Oslo Otto B. Halvorsen, Prime Minister of Norway (cand. jur.) Thorbjørn Jagland, Prime Minister of Norway (exam. oecon.) Gunnar Knudsen, Prime Minister of Norway (cand. philos.) Wollert Konow (SB), Prime Minister of Norway (law student, but did not graduate) John Lyng, Prime Minister of Norway (cand. jur.) Johan Ludwig Mowinckel, Prime Minister of Norway (cand. philos.) Christian August Selmer, Prime Minister of Norway (cand. jur.) Christian Schweigaard, Prime Minister of Norway (cand. jur.) Emil Stang, Prime Minister of Norway (cand. jur.) Frederik Stang, Prime Minister of Norway (cand. jur.) Johannes Steen, Prime Minister