John F. Tefft is an American diplomat who has served as a Foreign Service Officer since 1972. He was the United States Ambassador to Russia between July 31,2014 and September 28,2017. He had previously served as the United States' ambassador to Ukraine,Georgia,and Lithuania.
Thomas Bolling Robertson was a career foreign service officer,ambassador,and member of the Senior Foreign Service with the rank of Minister-Counselor. He was the U.S. Ambassador to Slovenia 2004–2007. President George W. Bush nominated Robertson as U.S. Ambassador to Slovenia on February 6,2004. The U.S. Senate confirmed his nomination on August 6,2004,and he was sworn in by Secretary Powell as ambassador on September 16,2004. After his return from Slovenia,he was the Dean of the Leadership and Management School of the Foreign Service Institute of the Department of State from 2007 until his retirement in 2010.
Reno Leon Harnish III is an American who was the director of the Center for Environment and National Security (CENS) at the Scripps Institution of Oceanography from 2009 to 2017. He was a career member of the U.S. Foreign Service and formerly served as principal deputy assistant secretary of state for Oceans,Environment and Science.
Donald E. Booth is an American diplomat who is serving as the U.S. Special Envoy for Sudan. Between August 2013 and January 2017,he was the U.S. Special Envoy to Sudan and South Sudan. Prior to his appointments as special envoy,Booth served as the Ambassador of the United States to Liberia,Zambia,and Ethiopia.
John A. Heffern is an American diplomat. Heffern served as the United States Ambassador to Armenia from 2011 to 2014. After being nominated on May 18,2011 by United States President Barack Obama,Heffern was confirmed by the U.S. Senate on September 26,2011 and sworn in as ambassador on October 6,2011. He was replaced by Ambassador Richard M. Mills Jr. in early 2015.
Robert Frank Godec is an American diplomat who has served as the United States ambassador to Thailand since October 2022. He formerly served as the United States ambassador to Kenya from 2013 to 2019 and the United States ambassador to Tunisia from 2006 to 2009. He also served as acting assistant secretary for the Bureau of African Affairs from January to September 2021.
Richard Merrill Mills Jr. is an American diplomat serving as the United States ambassador to Nigeria since July 2024. He served as the United States deputy ambassador to the United Nations from 2020 to 2024 and,in that capacity,served as the U.S. Chargéd'Affaires and Acting Permanent Representative to the United Nations between January 20,2021,and February 24,2021,when Linda Thomas-Greenfield became ambassador. He previously served as the U.S. Chargéd'Affaires for Canada.
Kelly Colleen Degnan is a career member of the Senior Foreign Service,class of Minister-Counselor,who served as the United States Ambassador to Georgia from 2020 to 2023. Prior to that she served as the Political Advisor to the Commander of United States Naval Forces Europe / United States Naval Forces Africa. Previously,she was the Deputy Chief of Mission (DCM) to the U.S. Mission to Italy and San Marino in Rome,Italy. In September 2019,she was nominated to be the next U.S. Ambassador to Georgia.
Robert Francis Cekuta is a career Foreign Service Officer,and served as U.S. Ambassador to Azerbaijan from February 2015 through March 2018.
Michael Arthur Raynor is an American Foreign Service Officer specializing in relations with Africa who has served as the United States ambassador to Senegal and the United States ambassador to Guinea-Bissau since 2022. He was the United States ambassador to Ethiopia until January 2021. He previously served as the Director of the Office of Career Development and Assignments in the Bureau of Human Resources of the United States Department of State. Raynor served as United States Ambassador to Benin from 2012 to 2015 after being nominated by President Barack Obama and confirmed by the U.S. Senate. Prior to his post in Benin,he was deputy executive director and then executive director of the Bureau of African Affairs.
Jessica Davis Ba is an American diplomat who serves as the United States ambassador to Ivory Coast in the Biden administration. She previously served as Senior Coordinator and Special Advisor for Africa in the Office of the Vice President. Davis Ba previously served as the Chargéd’Affaires,ad interim at the U.S. Embassy in N’Djamena,Chad.
William W. Popp is an American diplomat serving as the United States ambassador to Uganda since September 2023. He previously served as the United States ambassador to Guatemala.
Marc Evans Knapper is an American diplomat who has served as the United States Ambassador to Vietnam since February 2022.
Troy Damian Fitrell is an American diplomat who has served as the United States ambassador to Guinea since January 2022.
Lesslie Clay Viguerie is an American attorney and career diplomat who serves as the United States ambassador to Kyrgyzstan since December 2022.
Richard Lee Buangan is an American diplomat who has served as United States ambassador to Mongolia since November 2022.
Michael C. Gonzales is an American diplomat serving as the United States ambassador to Zambia. He previously served as the deputy assistant secretary of state in the Bureau of African Affairs.
Angela Price Aggeler is an American diplomat who is the United States ambassador to North Macedonia.
Hugo Yue-Ho Yon is an American diplomat serving as the U.S. ambassador to the Maldives since September 2023.
Vernelle Trim FitzPatrick is an American diplomat who is serving as the United States ambassador to Gabon.
