Sang Hyun Lee is a senior research fellow at the Sejong Institute in Korea. He also serves as President of the Korea Nuclear Policy Society (KNPS). He received his B.A. and M.A. from Seoul National University and Ph.D. from the Department of Political Science at the University of Illinois at Urbana-Champaign in 1999.
He was a research fellow at the Korean Institute for International Studies (1987-88), the Korea Institute for Defense Analysis (1988-90), and policy advisor for Ministry of Foreign Affairs, Ministry of National Unification, and Ministry of National Defense. He has served as Director-General for Policy Planning, Ministry of Foreign Affairs (MOFA) from May 2011 to April 2013. He is a member of Asia-Pacific Leadership Network (APLN) for Nuclear Nonproliferation and Disarmament, and Korea-US Nuclear Policy Leadership Initiative (NPLI). He has been a visiting scholar at Institute for Development and Security (ISDP) in Stockholm, Sweden, and Stimson Center in Washington DC.