Didrik Arup Seip (31 August 1884 – 3 May 1963) was a professor of North Germanic languages at the University of Oslo.
Together with Herman Jæger, he edited and published the collected works of Henrik Wergeland in 23 volumes (Samlede Skrifter : trykt og utrykt, 1918–1940).
Seip was a member of the Administrative Council, the temporary civil government of Norway during German military occupation, in 1940.
[1] Even while being held prisoner, Seip carried out official university ceremonies, including the immatriculation of some students who also were imprisoned in Germany during the war.
Tuneld, John (1981): Didrik Arup Seip: en bibliografi Det Norske Samlaget.