Stephen Mark Kotkin (born February 17, 1959) is an American historian, academic, and author. He is the Kleinheinz Senior Fellow at the Hoover Institution and a senior fellow at the Freeman Spogli Institute for International Studies at Stanford University. For 33 years, Kotkin taught at Princeton University, where he attained the title of John P. Birkelund '52 Professor in History and International Affairs, and he took emeritus status from Princeton University in 2022. He was the director of the Princeton Institute for International and Regional Studies and the co-director of the certificate program in History and the Practice of Diplomacy. He has won a number of awards and fellowships, including the Guggenheim Fellowship, the American Council of Learned Societies and the National Endowment for the Humanities Fellowship.
Kotkin's most prominent book project is his three-volume biography of Joseph Stalin, of which the first two volumes have been published as Stalin: Paradoxes of Power, 1878–1928 (2014) and Stalin: Waiting for Hitler, 1929–1941 (2017), while the third volume remains to be published.
Kotkin graduated from the University of Rochester in 1981 with a B.A. degree in English. He studied Russian and Soviet history under Reginald E. Zelnik and Martin Malia at the University of California, Berkeley, where he earned an M.A. degree in 1983 and a Ph.D. degree in 1988, both in history. Initially his PhD studies focused on the House of Habsburg and the History of France, until an encounter with Michel Foucault persuaded him to look at the relationship between knowledge and power with respect to Stalin.
Starting in 1986, Kotkin traveled to the Soviet Union, and then, he travelled to Russia multiple times, where he conducted academic research and received academic fellowships. He was a visiting scholar at the USSR Academy of Sciences (1991) and then at its descendant, the Russian Academy of Sciences (1993, 1995, 1998, 1999 and 2012). He was also a visiting scholar at University of Tokyo's Institute of Social Science in 1994 and 1997.