​Dr. Yoon Jung CHOI is the Vice President of Sejong Institute and an expert in geopolitics and geoeconomics of the Indo-Pacific, with a focus on South and Southeast Asia. Her research examines regional dynamics, integrating economic and technological dimensions with security implications. She adopts a comprehensive perspective that connects economic and technological security within broader strategic considerations. 

She has an extensive publication record, with recent works highlighting key strategic issues in the Indo-Pacific. Notably, she edited & co-authored Order in Tension: Competing Perspectives and Strategies in the Indo-Pacific (2024) and co-authored India, South Korea and the ASEAN: Middle Power Diplomacy in the Indo-Pacific (2024). Other recent publications include Economic Security, Beyond Faction to National Interest (2024), New Indo-Pacific Vision and the Road Ahead for South Korea-India Partnership (2023), and Comparison and Implications of Indo-Pacific Strategies: Focusing on the United States, Europe, Japan, India, and ASEAN (2022). She actively engages in academic and policy discussions, contributing to research on Indo-Pacific strategic affairs. 

She is also involved in academic and professional associations, serving as Director of Planning at the Korean Association of International Studies and Vice President of the Korea Association of National Intelligence Studies. Additionally, she is a member of the Korean Society of Area Studies, The 21st Century Political Science Association, and other scholarly organizations.

Beyond academia, Dr. CHOI plays an active role in policy development and strategic advisory work. She serves as a member of the Policy Advisory Council for the National Security Office (NSO) in the Office of the President and is a recognized Expert and Eminent Person (EEP) in the ASEAN Regional Forum. She is also a member of the National Unification Advisory Council, where she contributes to policy discussions on inter-Korean affairs. Additionally, she collaborates with key government institutions, including the Ministry of Unification and the Ministry of Trade, Industry & Energy (MOTIE), serving on advisory and evaluation committees. From 2019 to 2024, she led the Sejong ASEAN Young Leaders Program, overseeing initiatives to strengthen ASEAN youth leadership and capacity-building.

She received her M.A. and Ph.D. from the School of International Studies at Ewha Womans University at Seoul. She was a visiting scholar at the Columbia University in the City of New York.