Sigurd Bernhard Sverdrup (1918 – 2008) was a Norwegian World War II resistance member.
He studied law during the early phase of World War II. He became a member of the resistance group 2A. Here he gained contact with Martin Siem, a worker at the mechanic yard Akers Mekaniske Verksted. Both were recruited to the secret intelligence organization RMO. Siem was an informant regarding his workplace, whereas Sverdrup gained a direect channel to the executive of the Oslo Port Authority.[1] When the leader of RMO, A.K. Rygg, had to flee the country in the autumn 1943, Siem and Sverdrup took over the leadership.[2] Sverdrup was specifically tasked with coordinating naval intelligence in the Oslofjord, from Kristiansand in the west to Halden in the east. RMO cooperated with XU and Milorg,[1] and information on the Port of Oslo became especially important for Norwegian ship saboteurs, such as Max Manus, Gregers Gram and Roy Nielsen.[3]
Sverdrup died in 2008.[1]