Sigurd Østrem (1884–1954) was a Norwegian jurist.
He took the dr.juris degree in 1926 with the thesis De kollektive arbeidskampe efter norsk ret.[1] During the occupation of Norway by Nazi Germany he held more than thirty radio lectures in the Nazi-controlled Norwegian Broadcasting Corporation, explaining new Nazi laws and reforms in a Norwegian historical context.[2] He was also appointed as a docent in jurisprudence at the University of Oslo on 27 June 1941, but lost his job shortly after the war, on 15 May 1945.[3] He died on 22 February 1954.[4]