Johan P. Olsen (born August 14, 1939) is a Norwegian political scientist. He was a professor at the University of Bergen and member of the Norwegian Research Council. He established ARENA (Advanced Research on the Europeanization of the Nation State) in 1994. He was Research Director at ARENA for many years, and is now professor emeritus.
March, James G.; Olsen, Johann P. (October 9, 1989). Rediscovering Institutions. The Organizational Basis of Politics. New York: The Free Press. p. 227. ISBN978-0-02-920115-2 (Also Italian, Japanese, Polish and Spanish (Mexico) editions)