Olav Riste (born 1933) is a Norwegian historian.
His research focus has been on international and national security, and military history. He is a member of the Norwegian Academy of Science and Letters.
Riste edited the Scandinavian Journal of History from 1976 to 1981. He was decorated Knight, First Class of the Royal Norwegian Order of St. Olav in 2003.
- London-regjeringa. Norge i krigsalliansen 1940–1945 (2 volumes, 1973/1979)
- The Norwegian Intelligence Service 1945–1970 (1999. Norwegian edition 1997)