Thorstein Guthe (25 April 1912 – 24 June 1994) was a Norwegian physician and fencer.
He was born in Kristiania[1] as a son of tailor Hans O. Guthe (1869–1929) and Hilda Kathrine Helgesen (1876–1950).
During the Second World War he was the head physician in Little Norway from 1940 to 1941, then at the Health Office for Seamen in New York City from 1941 to 1943.
He then worked at the Norwegian embassy in the United States for one year, then the Ministry of Social Affairs-in-exile from 1944 to 1945.
[2] He was a consultant for the United Nations from 1947, and was a physician for the World Health Organization in Geneva from 1948 to 1956.