Geoffrey R. Pyatt is a distinguished fellow with the Atlantic Council Global Energy Center. He was a career member of the foreign service, class of career ambassador, and was sworn in as assistant secretary for energy resources on September 19, 2022.

Pyatt served as US ambassador to Greece from 2016 to 2022 and US ambassador to Ukraine from 2013 to 2016. Among other recognitions, he received the State Department’s Robert Frasure Memorial Award in recognition of his leadership of the US response to Russia’s invasion of Crimea and eastern Ukraine in 2014.

Previously, Pyatt was principal deputy assistant secretary of state in the Bureau of South and Central Asian Affairs from 2010 to 2013. He was deputy chief of mission at the US Mission to the International Organizations in Vienna, Austria, from 2007 to 2010. He also served three times at the US embassy in New Delhi, India, as deputy chief of mission from 2006 to 2007, political counselor from 2002 to 2006, and political officer from 1992 to 1994. Pyatt was economic officer at the US Consulate General in Hong Kong from 1999 to 2002 and principal officer at the US Consulate General in Lahore, Pakistan, from 1997 to 1999.  Since joining the foreign service in 1989, he has also served on the National Security Council staff, on the staff of Deputy Secretary Strobe Talbott, and at the US embassy in Honduras.

Prior to joining the foreign service, he worked with The Inter-American Dialogue, a Washington-based think tank that brings together leading citizens of the Americas.

Pyatt grew up in La Jolla, California, and holds a master’s degree in international relations from Yale and BA in political science from the University of California, Irvine.