Øystein Rian (born 23 February 1945, in Lillehammer) is a Norwegian historian who specializes in the history of Denmark-Norway from 1536 to 1814, particularly its political, social and religious history.
He was appointed associate professor at Telemark University College in 1977, and was a professor at the University of Oslo from 1993 until reaching the emeritus age in 2015.
[1] He is a member of the Norwegian Academy of Science and Letters.
[2] He is the younger brother of Erlend Rian.
[3] This biographical article about a Norwegian historian is a stub.