Geoffrey R. Pyatt is the United States Ambassador to Ukraine. On May 19, 2016, he was nominated by U.S. President Barack Obama to serve as United States Ambassador to Greece.

Pyatt started his diplomatic career in Honduras, from 1990 until 1992 he worked as vice-consul and economic officer in Tegucigalpa. The highest position (before his current post) was deputy chief of diplomatic mission in India in 2006 and 2007. After that he worked as deputy chief of U.S. mission to International Atomic Energy Agency and other international organizations in Vienna. Prior to his current position Pyatt served as Principal Deputy Assistant Secretary of the Bureau of South and Central Asian Affairs from May 2010 until July 2013.

Pyatt took the Oath of Office of United States Ambassador to Ukraine on July 30, 2013 in the Harry S Truman Building of the US State Department in Washington, D.C.

Pyatt was confirmed as the Ambassador to Greece on July 14, 2016. Pyatt’s U.S. State Department career landed him posts in Asia, Europe, and Latin America.