On September 21, 2015, Hans Klemm assumed the duties of the Ambassador of the United States of America to Romania. Previously, Ambassador Klemm served as Acting Director General of the Department of State; the Senior U.S. Official to the Asia Pacific Economic Cooperation Forum; Coordinator of all U.S. civilian and military rule of law programs in Afghanistan; and as the U.S. Ambassador to the Democratic Republic of Timor-Leste.

In addition to multiple tours in Japan, Ambassador Klemm worked at U.S. Embassies in Bonn, Seoul and Port of Spain.

Ambassador Klemm graduated from Indiana University with a B.A. in Economics and History, and from Stanford University with an M.A in International Development Policy.