- Category : 1930-births
- Type : PSP
- Profile : 5/1 - Heretical / Investigator
- Definition : Split - Small (20,48)
- Incarnation Cross : LAX The Clarion 1
Norwegian politician of the Conservative Party. He was a member of the Norwegian parliament from 1965 to 1981 and was State Secretary for prime minister Lyng in 1963. He was Assistant Administrator of the United Nations Development Programme (UNDP) and head of the Bureau for Special Activities of the UNDP in New York from 1980 to 1988.
Thyness died on 30 March 2016 in Oslo, Norway, aged 85.