Pyatt, Geoffrey R. (Geoffrey Ross), 1963-

Geoffrey Ross Pyatt (born 1963) is the United States Ambassador to Greece and former ambassador to Ukraine. On May 19, 2016, he was nominated by U.S. President Barack Obama to serve as United States Ambassador to Greece. He 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.

Pyatt was born 1963 in La Jolla, a suburb of San Diego, California. He received his bachelor's degree in political studies in 1985 at the University of California, Irvine, and a master's degree in international relations at Yale University in 1987.

Pyatt started his diplomatic career in Honduras from 1990 until 1992 as vice-consul and economic officer in Tegucigalpa. He 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. 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. Ukrainian President Viktor Yanukovych accepted Pyatt's credentials on August 15, 2013. After his appointment, Pyatt started actively studying the Ukrainian language. On October 15, 2013 Pyatt attended an international conference on fighting anti-Semitism in Kiev, but could not address the audience at the event due to the United States federal government shutdown of 2013.

Pyatt supported the 2014 Ukrainian revolution against Ukraine's President Victor Yanukovych. Pyatt characterised pro-Russian separatist rebels in Donetsk and Luhansk as "terrorists".

On September 25, 2015, during his speech at Odesa Financial Forum, Pyatt criticized Ukrainian Prosecutor's office.

On May 19, 2016, he was nominated by U.S. President Barack Obama to serve as United States Ambassador to Greece. He was replaced by Marie L. Yovanovitch in Ukraine. He was confirmed as the Ambassador to Greece on July 14, 2016. He was sworn in September 2016. He presented his credentials on October 24, 2016.