Ryan Hass is an American foreign policy analyst and diplomat currently serving as the director of the John L. Thornton China Center and the Chen-Fu and Cecilia Yen Koo Chair in Taiwan Studies at the Brookings Institution. A former U.S. diplomat, he held senior roles including Director for China, Taiwan, and Mongolian Affairs at the National Security Council during the Obama administration, and served in diplomatic posts in Seoul and Beijing. Hass is a prolific author whose recent works include Stronger: Adapting America’s China Strategy in an Age of Competitive Interdependence (Yale University Press, 2021) and U.S.–Taiwan Relations (Brookings Institution Press, 2023), and he continues to shape conversations on U.S.-East Asia relations through Brookings and major media outlets .