2018 - Principals and Chiefs Chronological
Listing - People - Department History
Principal Officers and Chiefs of Mission, by Year: 2018
NOTE TO READERS
Updates to the Principal Officers and Chiefs of Mission database are currently suspended. For information about the Department’s current and recent leadership, we recommend visiting the Department of State homepage’s Biographies of Senior Officials and List of U.S. Ambassadors.
Notice posted on January 12, 2024.
Last
updated March 14, 2024.
Note: Career Foreign Service appointees are asterisked.
- *Cynthia Helen Akuetteh (1948–)
- Ambassador Extraordinary and Plenipotentiary, Gabon (2014–2018)
- Ambassador Extraordinary and Plenipotentiary, Sao Tome and Principe (2014–2018)
- *Theodore Allegra (?–)
- Chargé d’Affaires ad interim (2017–2018)
- *Craig B. Allen (1957–)
- Ambassador Extraordinary and Plenipotentiary, Brunei (2014–2018)
- *Carolyn Patricia Alsup (1961–)
- Ambassador Extraordinary and Plenipotentiary, The Gambia (2015–2018)
- *Larry Edward Andre Jr. (1961–)
- Ambassador Extraordinary and Plenipotentiary, Mauritania (2014–2017)
- Ambassador Extraordinary and Plenipotentiary, Djibouti (2017)
- *Luis E. Arreaga-Rodas (1952–)
- Ambassador Extraordinary and Plenipotentiary, Iceland (2009–2013)
- Ambassador Extraordinary and Plenipotentiary, Guatemala (2017–2020)
- *Jess Lippencott Baily (1960–)
- Ambassador Extraordinary and Plenipotentiary, Macedonia (2014–2019)
- *Erica J. Barks-Ruggles (1967–)
- Ambassador Extraordinary and Plenipotentiary, Rwanda (2014–2018)
- *Peter H. Barlerin (?–)
- Ambassador Extraordinary and Plenipotentiary, Cameroon (2017–2020)
- *John R. Bass (1964–)
- Ambassador Extraordinary and Plenipotentiary, Georgia (2009–2012)
- Executive Secretary (2012–2014)
- Ambassador Extraordinary and Plenipotentiary, Turkey (2014)
- Ambassador Extraordinary and Plenipotentiary, Turkey (2014–2017)
- Ambassador Extraordinary and Plenipotentiary, Afghanistan (2017–2020)
- *Marcia Stephens Bloom Bernicat (1953–)
- Ambassador Extraordinary and Plenipotentiary, Guinea-Bissau (2008–2011)
- Ambassador Extraordinary and Plenipotentiary, Senegal (2008–2011)
- Ambassador Extraordinary and Plenipotentiary, Bangladesh (2014–2018)
- Robin S. Bernstein (?–)
- Ambassador Extraordinary and Plenipotentiary, Dominican Republic (2018)
- *Randy W. Berry (?–)
- Ambassador Extraordinary and Plenipotentiary, Nepal (2018)
- *Rena Bitter (?–)
- Ambassador Extraordinary and Plenipotentiary, Laos (2016–2020)
- *Jane E. Bocklage (?–)
- Chargé d’Affaires ad interim (2017–2019)
- *Stephanie L. Bowers (?–)
- Chargé d’Affaires ad interim, The Bahamas ()
- Kenneth J. Braithwaite (?–)
- Ambassador Extraordinary and Plenipotentiary, Norway (2018)
- Terry E. Branstad (?–)
- Ambassador Extraordinary and Plenipotentiary, China (2017–2020)
- T. Ulrich Brechbuhl (?–)
- Counselor (2018)
- Kimberly Breier (?–)
- Assistant Secretary of State for Western Hemisphere Affairs (2018)
- *Natalie E. Brown (?–)
- Chargé d’Affaires, Eritrea (2019)
- Ambassador Extraordinary and Plenipotentiary, Uganda (2020)
- Samuel Dale Brownback (1956–)
- Ambassador at Large (2018)
- *David Brownstein (?–)
- Chargé d’Affaires ad interim, Central African Republic (2019)
- Richard D. Buchan III (?–)
- Ambassador Extraordinary and Plenipotentiary, Andorra (2017)
- Ambassador Extraordinary and Plenipotentiary, Spain (2017)
- *Roxanne J. Cabral (?–)
- Chargé d’Affaires ad interim, Panama (2018–2020)
- Ambassador Extraordinary and Plenipotentiary, Marshall Islands (2019)
- *James A. Carouso (?–)
- Chargé d’Affaires ad interim, Australia (2019)
- Thomas L. Carter (?–)
- Representative of the U.S.A. on the Council of the International Civil Aviation Organization (Montreal) (2017–2020)
- *Anne S. Casper (?–)
- Ambassador Extraordinary and Plenipotentiary, Burundi (2016–2019)
- *Judith Beth Cefkin (1953–)
- Ambassador Extraordinary and Plenipotentiary, Fiji (2014–2018)
- Ambassador Extraordinary and Plenipotentiary, Kiribati (2014–2018)
- Ambassador Extraordinary and Plenipotentiary, Tonga (2014–2018)
- Ambassador Extraordinary and Plenipotentiary, Nauru (2014–2018)
- Ambassador Extraordinary and Plenipotentiary, Tuvalu (2014–2018)
- *Robert Francis Cekuta (1954–)
- Ambassador Extraordinary and Plenipotentiary, Azerbaijan (2014–2018)
- *Todd C. Chapman (1962–)
- Chargé d’Affaires ad interim, Mozambique (2010)
- Ambassador Extraordinary and Plenipotentiary, Ecuador (2015–2019)
- Ambassador Extraordinary and Plenipotentiary, Brazil (2020)
- *Thomas E. Cooney (?–)
- Chargé d’Affaires ad interim, Argentina (2018)
- *Maureen Elizabeth Cormack (1957–)
- Ambassador Extraordinary and Plenipotentiary, Bosnia and Herzegovina (2014–2019)
- David B. Cornstein (?–)
- Ambassador Extraordinary and Plenipotentiary, Hungary (2018–2020)
- *Kevin Covert (?–)
- Chargé d’Affaires ad interim, Tajikistan (2019)
- Kelly Knight Craft (?–)
- Ambassador Extraordinary and Plenipotentiary, Canada (2017–2019)
- Representative of the U.S.A. to the United Nations (2019)
- *Shawn P. Crowley (?–)
- Chargé d’Affaires ad interim, Netherlands (2018)
- *Martin Dale (?–)
- Chargé d’Affaires ad interim, Somalia (2018)
- *Joel Danies (?–)
- Ambassador Extraordinary and Plenipotentiary, Gabon (2018–2019)
- Ambassador Extraordinary and Plenipotentiary, Sao Tome and Principe (2018–2019)
- *Glyn T. Davies (1957–)
- Representative of the U.S.A. to the Vienna Office of the United Nations (Vienna) (2009–2011)
- Representative of the U.S.A. to the International Atomic Energy Agency (Vienna) (2009–2011)
- Ambassador Extraordinary and Plenipotentiary, Thailand (2015–2018)
- *Gregory T. Delawie (1957–)
- Ambassador Extraordinary and Plenipotentiary, Kosovo (2015–2018)
- *John P. Desrocher (?–)
- Ambassador Extraordinary and Plenipotentiary, Algeria (2017–2020)
- *Michael J. Dodman (?–)
- Ambassador Extraordinary and Plenipotentiary, Mauritania (2017)
- *Laura Farnsworth Dogu (1964–)
- Ambassador Extraordinary and Plenipotentiary, Nicaragua (2015–2018)
- *Kathleen Ann Doherty (1963–)
- Ambassador Extraordinary and Plenipotentiary, Cyprus (2015–2019)
- *Joseph R. Donovan Jr. (?–)
- Ambassador Extraordinary and Plenipotentiary, Indonesia (2016–2020)
- *Thomas M. Duffy (1962–)
- Chargé d’Affaires ad interim (2016–2019)
- *Catherine Ebert-Gray (1955–)
- Ambassador Extraordinary and Plenipotentiary, Solomon Islands (2015–2019)
- Ambassador Extraordinary and Plenipotentiary, Papua New Guinea (2015–2019)
- Ambassador Extraordinary and Plenipotentiary, Vanuatu (2015–2019)
- *Christine Elder (?–)
- Ambassador Extraordinary and Plenipotentiary, Liberia (2016–2020)
- *Jill M. Esposito (?–)
- Chargé d’Affaires ad interim, Iceland (2019)
- J. Randolph Evans (?–)
- Ambassador Extraordinary and Plenipotentiary, Luxembourg (2018)
- Francis R. Fannon (?–)
- Assistant Secretary of State for Energy Resources (2018)
- *John D. Feeley (1961–)
- Ambassador Extraordinary and Plenipotentiary, Panama (2015–2018)
- Nina Marie Fite (?–)
- Ambassador Extraordinary and Plenipotentiary, Angola (2017)
- *Kathleen M. Fitzpatrick (?–)
- Ambassador Extraordinary and Plenipotentiary, Timor-Leste (2017)
- *Paul Arthur Folmsbee (1960–)
- Ambassador Extraordinary and Plenipotentiary, Mali (2015–2018)
- *Daniel L. Foote (?–)
- Ambassador Extraordinary and Plenipotentiary, Zambia (2017–2020)
- Christopher A. Ford (?–)
- Assistant Secretary of State for International Security and Nonproliferation (2018)
- *Heide B. Fulton (?–)
- Chargé d’Affaires ad interim, Honduras (2019)
- *Julia Ann Furuta-Toy (1960–)
- Ambassador Extraordinary and Plenipotentiary, Equatorial Guinea (2015–2019)
- Chargé d’Affaires ad interim, Norway (2015)
- *Adrienne Galanek (?–)
- Chargé d’Affaires ad interim, Belize (2018)
- Ronald J. Gidwitz (?–)
- Ambassador Extraordinary and Plenipotentiary, Belgium (2018)
- *Keith R. Gilges (?–)
- Chargé d’Affaires ad interim, Belize (2018)
- *David R. Gilmour (1958–)
- Ambassador Extraordinary and Plenipotentiary, Togo (2015–2019)
- Callista L. Gingrich (1966–)
- Ambassador Extraordinary and Plenipotentiary, Holy See (2017–2021)
- Michelle S. Giuda (?–)
- Assistant Secretary of State for Public Affairs (2018)
- *Robert Frank Godec (1956–)
- Ambassador Extraordinary and Plenipotentiary, Tunisia (2006–2009)
- Ambassador Extraordinary and Plenipotentiary, Kenya (2013–2019)
- *Philip S. Goldberg (1956–)
- Ambassador Extraordinary and Plenipotentiary, Bolivia (2006–2008)
- Assistant Secretary of State for Intelligence and Research (2010–2013)
- Ambassador Extraordinary and Plenipotentiary, Philippines (2013–2016)
- Career Ambassador (2018)
- Ambassador Extraordinary and Plenipotentiary, Colombia (2019)
- *Thomas Goldberger (?–)
- Chargé d’Affaires ad interim, Egypt (2019)
- *Michael B. Goldman (?–)
- Chargé d’Affaires ad interim, Fiji (2019)
- Chargé d’Affaires ad interim, Kiribati (2019)
- Chargé d’Affaires ad interim, Tonga (2019)
- Chargé d’Affaires ad interim, Nauru (2019)
- Chargé d’Affaires ad interim, Tuvalu (2019)
- Irwin Steven Goldstein (1952–)
- Under Secretary of State for Public Diplomacy and Public Affairs (2017–2018)
- *Rebecca E. Gonzales (?–)
- Ambassador Extraordinary and Plenipotentiary, Lesotho (2017)
- *William Grant (?–)
- Chargé d’Affaires ad interim, Qatar (2018–2020)
- Richard A. Grenell (?–)
- Ambassador Extraordinary and Plenipotentiary, Germany (2018)
- William F. Hagerty IV (?–)
- Ambassador Extraordinary and Plenipotentiary, Japan (2017–2019)
- *David Hale (1961–)
- Chargé d’Affaires ad interim, Jordan (2005)
- Ambassador Extraordinary and Plenipotentiary, Jordan (2005–2008)
- Ambassador Extraordinary and Plenipotentiary, Lebanon (2013–2015)
- Ambassador Extraordinary and Plenipotentiary, Pakistan (2015–2018)
- Under Secretary of State for Political Affairs (2018)
- Career Ambassador (2018)
- Nikki R. Haley (?–)
- Representative of the U.S.A. to the United Nations (2017–2018)
- *Anne Hall (?–)
- Ambassador Extraordinary and Plenipotentiary, Lithuania (2016–2019)
- *Michael A. Hammer (1963–)
- Assistant Secretary of State for Public Affairs (2012–2013)
- Ambassador Extraordinary and Plenipotentiary, Chile (2014–2016)
- Ambassador Extraordinary and Plenipotentiary, Congo (Kinshasa) (2018)
- *Dennis B. Hankins (1959–)
- Ambassador Extraordinary and Plenipotentiary, Guinea (2015–2019)
- Ambassador Extraordinary and Plenipotentiary, Mali (2019)
- Harry B. Harris Jr. (?–)
- Ambassador Extraordinary and Plenipotentiary, Korea (2018)
- *Brent Robert Hartley (1955–)
- Ambassador Extraordinary and Plenipotentiary, Slovenia (2014–2018)
- *Jennifer Haskell (?–)
- Chargé d’Affaires ad interim, Congo (Kinshasa) (2018)
- *Andrew B. Haviland (?–)
- Chargé d’Affaires ad interim, Côte d’Ivoire (2017)
- Chargé d’Affaires ad interim (2017–2020)
- *Donald J. Heflin (1958–)
- Ambassador Extraordinary and Plenipotentiary, Cape Verde (2014–2018)
- *Chris Hegadorn (?–)
- Chargé d’Affaires ad interim (2017–2018)
- *William A. Heidt (1961–)
- Ambassador Extraordinary and Plenipotentiary, Cambodia (2015–2018)
- *Christopher Henzel (1962–)
- Chargé d’Affaires ad interim, Saudi Arabia (2019)
- Ambassador Extraordinary and Plenipotentiary, Yemen (2019)
- *G. Kathleen Hill (1964–)
- Ambassador Extraordinary and Plenipotentiary, Malta (2015–2018)
- Peter Hoekstra (?–)
- Ambassador Extraordinary and Plenipotentiary, Netherlands (2017)
- *Dereck J. Hogan (?–)
- Ambassador Extraordinary and Plenipotentiary, Moldova (2018)
- *Perry L. Holloway (1960–)
- Ambassador Extraordinary and Plenipotentiary, Guyana (2015–2018)
- Brian H. Hook (1968–)
- Assistant Secretary of State for International Organization Affairs (2008–2009)
- Director of Policy Planning (2017–2018)
- *Elizabeth K. Horst (?–)
- Chargé d’Affaires ad interim, Estonia (2019)
- Jon M. Huntsman Jr. (1960–)
- Ambassador Extraordinary and Plenipotentiary, Singapore (1992–1993)
- Ambassador Extraordinary and Plenipotentiary, China (2009–2011)
- Ambassador Extraordinary and Plenipotentiary, Russia (2017–2019)
- *Thomas J. Hushek (?–)
- Ambassador Extraordinary and Plenipotentiary, South Sudan (2018–2020)
- *Amy Jane Hyatt (1955–)
- Ambassador Extraordinary and Plenipotentiary, Palau (2015–2020)
- *Robert Porter Jackson (1956–)
- Ambassador Extraordinary and Plenipotentiary, Cameroon (2010–2013)
- Ambassador Extraordinary and Plenipotentiary, Ghana (2015–2018)
- Roberta S. Jacobson (1960–)
- Assistant Secretary of State for Western Hemisphere Affairs (2012–2016)
- Ambassador Extraordinary and Plenipotentiary, Mexico (2016–2018)
- *Lisa Anne Johnson (1967–)
- Chargé d’Affaires ad interim, The Bahamas (2017)
- Ambassador Extraordinary and Plenipotentiary, Namibia (2017)
- *Paul Wayne Jones (1960–)
- Ambassador Extraordinary and Plenipotentiary, Malaysia (2010–2013)
- Ambassador Extraordinary and Plenipotentiary, Poland (2015–2018)
- Chargé d’Affaires ad interim, Pakistan (2018–2020)
- *Harry R. Kamian (?–)
- Chargé d’Affaires ad interim (2017–2019)
- *Kelly Keiderling-Franz (?–)
- Ambassador Extraordinary and Plenipotentiary, Uruguay (2016–2019)
- *Ian C. Kelly (1953–)
- Representative of the U.S.A. to the Organization for Security and Cooperation in Europe (Vienna) (2010–2013)
- Ambassador Extraordinary and Plenipotentiary, Georgia (2015–2018)
- *Atul Keshap (1971–)
- Ambassador Extraordinary and Plenipotentiary, Maldives (2015–2018)
- Ambassador Extraordinary and Plenipotentiary, Sri Lanka (2015–2018)
- *Eric Khant (?–)
- Chargé d’Affaires ad interim, Jamaica (2019)
- *Sung Y. Kim (1960–)
- Ambassador Extraordinary and Plenipotentiary, Korea (2011–2014)
- Ambassador Extraordinary and Plenipotentiary, Philippines (2016–2020)
- Ambassador Extraordinary and Plenipotentiary, Indonesia (2020)
- *Hans G. Klemm (1957–)
- Ambassador Extraordinary and Plenipotentiary, Timor-Leste (2007–2010)
- Ambassador Extraordinary and Plenipotentiary, Romania (2015–2019)
- *Marc E. Knapper (?–)
- Chargé d’Affaires ad interim, Korea (2018)
- W. Robert Kohorst (?–)
- Ambassador Extraordinary and Plenipotentiary, Croatia (2017)
- *Philip S. Kosnett (?–)
- Ambassador Extraordinary and Plenipotentiary, Kosovo (2018)
- *David Kostelancik (?–)
- Chargé d’Affaires ad interim, Hungary (2018)
- *Steven Koutsis (?–)
- Chargé d’Affaires, Sudan (2019)
- *George Albert Krol (1956–)
- Ambassador Extraordinary and Plenipotentiary, Belarus (2003–2006)
- Ambassador Extraordinary and Plenipotentiary, Uzbekistan (2011–2014)
- Ambassador Extraordinary and Plenipotentiary, Kazakhstan (2014–2018)
- Ambassador Extraordinary and Plenipotentiary, Turkmenistan (Nomination of June 27, 2007, withdrawn on April 28, 2008.)
- *Jessica Lapenn (?–)
- Chargé d’Affaires ad interim, South Africa (2019)
- Representative of the U.S.A. to the African Union (2019)
- *Barbara A. Leaf (1958–)
- Ambassador Extraordinary and Plenipotentiary, United Arab Emirates (2014–2018)
- *Mary Beth Leonard (1962–)
- Ambassador Extraordinary and Plenipotentiary, Mali (2011–2014)
- Representative of the U.S.A. to the African Union (2016–2019)
- Ambassador Extraordinary and Plenipotentiary, Nigeria (2019)
- *David Lindwall (?–)
- Chargé d’Affaires ad interim, Sweden (2018)
- *Kent D. Logsdon (?–)
- Chargé d’Affaires ad interim, Germany (2018)
- *Donald Lu (1966–)
- Chargé d’Affaires ad interim, Azerbaijan (2010)
- Ambassador Extraordinary and Plenipotentiary, Albania (2014–2018)
- Ambassador Extraordinary and Plenipotentiary, Kyrgyzstan (2018)
- *Matthew R. Lussenhop (?–)
- Chargé d’Affaires ad interim, Belgium (2018)
- Kirsten D. Madison (?–)
- Assistant Secretary of State for International Narcotics and Law Enforcement Affairs (2018)
- *Deborah Ruth Malac (1955–)
- Ambassador Extraordinary and Plenipotentiary, Liberia (2012–2015)
- Ambassador Extraordinary and Plenipotentiary, Uganda (2015–2020)
- *Jean Elizabeth Manes (1970–)
- Ambassador Extraordinary and Plenipotentiary, El Salvador (2016–2019)
- *Scot Alan Marciel (1958–)
- Representative of the U.S.A. to the Association of Southeast Asian Nations (Jakarta) (2008–2010)
- Ambassador Extraordinary and Plenipotentiary, Indonesia (2010–2013)
- Ambassador Extraordinary and Plenipotentiary, Burma (2016–2020)
- *Lee McClenny (1961–)
- Chargé d’Affaires, Venezuela (2017)
- Ambassador Extraordinary and Plenipotentiary, Paraguay (2018–2020)
- Jamie D. McCourt (?–)
- Ambassador Extraordinary and Plenipotentiary, France (2017)
- Ambassador Extraordinary and Plenipotentiary, Monaco (2017)
- Ambassador Extraordinary and Plenipotentiary, Belgium (Nominated June 26, 2017, withdrawn on August 2, 2017.)
- *John W. McIntyre (?–)
- Chargé d’Affaires ad interim, Trinidad and Tobago (2018)
- *Peter Michael McKinley (1954–)
- Chargé d’Affaires ad interim, Mozambique (1997)
- Ambassador Extraordinary and Plenipotentiary, Peru (2007–2010)
- Ambassador Extraordinary and Plenipotentiary, Colombia (2010–2013)
- Ambassador Extraordinary and Plenipotentiary, Afghanistan (2014–2016)
- Ambassador Extraordinary and Plenipotentiary, Brazil (2016–2018)
- *James Desmond Melville Jr. (1957–)
- Ambassador Extraordinary and Plenipotentiary, Estonia (2015–2018)
- *Manuel P. Micaller (?–)
- Chargé d’Affaires ad interim, Mongolia (2019)
- *Stephanie Miley (?–)
- Chargé d’Affaires ad interim, Morocco (2019)
- *Earl Robert Miller (1958–)
- Ambassador Extraordinary and Plenipotentiary, Botswana (2014–2018)
- Ambassador Extraordinary and Plenipotentiary, Bangladesh (2018)
- *Richard M. Mills Jr. (1959–)
- Ambassador Extraordinary and Plenipotentiary, Armenia (2015–2018)
- A. Wess Mitchell (1977–)
- Assistant Secretary of State for European and Eurasian Affairs (2017–2019)
- Kevin E. Moley (1946–)
- Representative of the U.S.A. to the European Office of the United Nations (Geneva) (2001–2006)
- Assistant Secretary of State for International Organization Affairs (2018)
- Joseph N. Mondello (?–)
- Ambassador Extraordinary and Plenipotentiary, Trinidad and Tobago (2018)
- *Jenifer H. Moore (?–)
- Chargé d’Affaires, Belarus (2018–2020)
- Georgette Mosbacher (?–)
- Ambassador Extraordinary and Plenipotentiary, Poland (2018)
- *Leyla Moses-Ones (?–)
- Chargé d’Affaires ad interim, Albania (2018)
- *Allan P. Mustard (1955–)
- Ambassador Extraordinary and Plenipotentiary, Turkmenistan (2014–2019)
- *Tibor P. Nagy Jr. (1949–)
- Ambassador Extraordinary and Plenipotentiary, Guinea (1996–1999)
- Ambassador Extraordinary and Plenipotentiary, Ethiopia (1999–2002)
- Assistant Secretary of State for African Affairs (2018)
- Denise Natali (?–)
- Assistant Secretary of State for Conflict and Stabilization Operations (2018)
- Jennifer G. Newstead (?–)
- Legal Adviser (2018–2019)
- *Brian A. Nichols (1965–)
- Ambassador Extraordinary and Plenipotentiary, Peru (2014–2017)
- Ambassador Extraordinary and Plenipotentiary, Zimbabwe (2018)
- *Edwin Richard Nolan Jr. (1955–)
- Chargé d’Affaires ad interim, Netherlands (2013)
- Ambassador Extraordinary and Plenipotentiary, Suriname (2015–2018)
- *Virginia E. Palmer (1963–)
- Ambassador Extraordinary and Plenipotentiary, Malawi (2014–2019)
- *Geeta Pasi (1962–)
- Ambassador Extraordinary and Plenipotentiary, Djibouti (2011–2014)
- Ambassador Extraordinary and Plenipotentiary, Chad (2016–2018)
- *Inmi K. Patterson (?–)
- Chargé d’Affaires ad interim, Tanzania (2020)
- Robert F. Pence (?–)
- Ambassador Extraordinary and Plenipotentiary, Finland (2018)
- *Carol Z. Perez (?–)
- Ambassador Extraordinary and Plenipotentiary, Chile (2016–2019)
- Director General of the Foreign Service (2019)
- *James D. Pettit (1956–)
- Ambassador Extraordinary and Plenipotentiary, Moldova (2014–2018)
- *Nancy Bikoff Pettit (1953–)
- Ambassador Extraordinary and Plenipotentiary, Latvia (2015–2019)
- *H. Dean Pittman (1956–)
- Ambassador Extraordinary and Plenipotentiary, Mozambique (2015–2018)
- Yleem D. S. Poblete (?–)
- Assistant Secretary of State for Arms Control, Verification, and Compliance (2018–2019)
- Michael R. Pompeo (1963–)
- Secretary of State (2018–2021)
- *William W. Popp (?–)
- Chargé d’Affaires ad interim, Brazil (2018)
- Ambassador Extraordinary and Plenipotentiary, Guatemala (2020)
- Edward C. Prado (?–)
- Ambassador Extraordinary and Plenipotentiary, Argentina (2018)
- *David D. Reimer (?–)
- Ambassador Extraordinary and Plenipotentiary, Seychelles (2017)
- Ambassador Extraordinary and Plenipotentiary, Mauritius (2017)
- *Judy Rising Reinke (?–)
- Ambassador Extraordinary and Plenipotentiary, Montenegro (2018)
- *Elizabeth H. Richard (?–)
- Ambassador Extraordinary and Plenipotentiary, Lebanon (2016–2020)
- John C. Richmond (?–)
- Ambassador at Large (2018)
- *Robert Annan Riley III (1955–)
- Ambassador Extraordinary and Plenipotentiary, Micronesia, Federated States of (2016–2020)
- *Robert J. Riley (?–)
- Chargé d’Affaires, Belarus (2018)
- *Hugo F. Rodriguez (?–)
- Chargé d’Affaires ad interim, Paraguay (2018)
- *Elizabeth Rood (?–)
- Chargé d’Affaires ad interim, Georgia (2018)
- Marie Royce (?–)
- Assistant Secretary of State for Educational and Cultural Affairs (2018)
- *Eric Seth Rubin (1961–)
- Ambassador Extraordinary and Plenipotentiary, Bulgaria (2015–2019)
- *Daniel H. Rubinstein (1967–)
- Ambassador Extraordinary and Plenipotentiary, Tunisia (2015–2019)
- *Mark A. Schapiro (?–)
- Chargé d’Affaires ad interim, Malta (2018–2020)
- *Kyle R. Scott (1957–)
- Ambassador Extraordinary and Plenipotentiary, Serbia (2015–2019)
- *Nicole D. Shampaine (?–)
- Chargé d’Affaires ad interim (2017–2018)
- Chargé d’Affaires ad interim (2017–2018)
- *Thomas Alfred Shannon Jr. (1958–)
- Assistant Secretary of State for Western Hemisphere Affairs (2005–2009)
- Ambassador Extraordinary and Plenipotentiary, Brazil (2009–2013)
- Career Ambassador (2012)
- Counselor (2013–2016)
- Under Secretary of State for Political Affairs (2016–2018)
- Secretary of State ad interim (2017)
- *Adam M. Shub (?–)
- Chargé d’Affaires ad interim (2017–2018)
- *Justin H. Siberell (1966–)
- Ambassador Extraordinary and Plenipotentiary, Bahrain (2017–2020)
- Director of the Bureau of Counterterrorism (Nomination of September 19, 2016, not acted upon by the Senate.)
- *Marc Jonathan Sievers (1955–)
- Ambassador Extraordinary and Plenipotentiary, Oman (2015–2019)
- *Douglas Alan Silliman (1960–)
- Ambassador Extraordinary and Plenipotentiary, Kuwait (2014–2016)
- Ambassador Extraordinary and Plenipotentiary, Iraq (2016–2019)
- *Lawrence R. Silverman (?–)
- Ambassador Extraordinary and Plenipotentiary, Kuwait (2016–2019)
- *Michele Jeanne Sison (1959–)
- Ambassador Extraordinary and Plenipotentiary, United Arab Emirates (2004–2008)
- Ambassador Extraordinary and Plenipotentiary, Lebanon (2008–2010)
- Ambassador Extraordinary and Plenipotentiary, Maldives (2012–2014)
- Ambassador Extraordinary and Plenipotentiary, Sri Lanka (2012–2014)
- Ambassador Extraordinary and Plenipotentiary, Haiti (2018)
- Career Ambassador (2018)
- Kiron Skinner (?–)
- Director of Policy Planning (2018–2019)
- *Daniel Bennett Smith (1956–)
- Executive Secretary (2007–2009)
- Ambassador Extraordinary and Plenipotentiary, Greece (2010–2013)
- Assistant Secretary of State for Intelligence and Research (2014–2018)
- Director of the Foreign Service Institute (2018)
- Career Ambassador (2018)
- Secretary of State ad interim (2021)
- *Reece Smyth (?–)
- Chargé d’Affaires ad interim, Ireland (2019)
- Gordon D. Sondland (?–)
- Representative of the U.S.A. to the European Union, with the rank and status of Ambassador Extraordinary and Plenipotentiary (2018)
- *Pamela Leora Spratlen (1954–)
- Ambassador Extraordinary and Plenipotentiary, Kyrgyzstan (2011–2014)
- Ambassador Extraordinary and Plenipotentiary, Uzbekistan (2014–2018)
- *Adam H. Sterling (1960–)
- Ambassador Extraordinary and Plenipotentiary, Slovakia (2016–2019)
- *Karen Brevard Stewart (1952–)
- Ambassador Extraordinary and Plenipotentiary, Belarus (2006–2008)
- Ambassador Extraordinary and Plenipotentiary, Laos (2010–2013)
- Ambassador Extraordinary and Plenipotentiary, Marshall Islands (2016–2020)
- *James Story (?–)
- Chargé d’Affaires, Venezuela (2018)
- *Kevin K. Sullivan (1964–)
- Chargé d’Affaires ad interim, Argentina (2015)
- Ambassador Extraordinary and Plenipotentiary, Nicaragua (2018)
- *Stephanie Sanders Sullivan (1958–)
- Ambassador Extraordinary and Plenipotentiary, Congo (Brazzaville) (2013–2017)
- Ambassador Extraordinary and Plenipotentiary, Ghana (2018)
- *W. Stuart Symington IV (1952–)
- Ambassador Extraordinary and Plenipotentiary, Djibouti (2006–2008)
- Ambassador Extraordinary and Plenipotentiary, Rwanda (2008–2011)
- Ambassador Extraordinary and Plenipotentiary, Nigeria (2016–2019)
- *Stephanie Syptak-Ramnath (?–)
- Chargé d’Affaires ad interim, Singapore (2019)
- *Lucy Tamlyn (1955–)
- Ambassador Extraordinary and Plenipotentiary, Benin (2015–2018)
- Ambassador Extraordinary and Plenipotentiary, Central African Republic (2019)
- Mary E. Taylor (?–)
- Assistant Secretary of State for Legislative Affairs (2018)
- *Mara R. Tekach (?–)
- Chargé d’Affaires, Cuba (2018–2020)
- *Alaina B. Teplitz (1969–)
- Ambassador Extraordinary and Plenipotentiary, Nepal (2015–2018)
- Ambassador Extraordinary and Plenipotentiary, Maldives (2018)
- Ambassador Extraordinary and Plenipotentiary, Sri Lanka (2018)
- *Harry Keels Thomas Jr. (1956–)
- Ambassador Extraordinary and Plenipotentiary, Bangladesh (2003–2005)
- Executive Secretary (2005–2007)
- Director General of the Foreign Service (2007–2009)
- Ambassador Extraordinary and Plenipotentiary, Philippines (2010–2013)
- Ambassador Extraordinary and Plenipotentiary, Zimbabwe (2015–2018)
- Andrea L. Thompson (?–)
- Under Secretary of State for Arms Control and International Security Affairs (2018)
- Rex W. Tillerson (1952–)
- Secretary of State (2017–2018)
- Trevor D. Traina (?–)
- Ambassador Extraordinary and Plenipotentiary, Austria (2018)
- Carlos Trujillo (?–)
- Permanent Representative of the U.S.A. to the Organization of American States (Washington) (2018)
- *Matthew Haywood Tueller (1957–)
- Ambassador Extraordinary and Plenipotentiary, Kuwait (2011–2014)
- Ambassador Extraordinary and Plenipotentiary, Yemen (2014–2019)
- Ambassador Extraordinary and Plenipotentiary, Iraq (2019)
- *Krishna R. Urs (?–)
- Ambassador Extraordinary and Plenipotentiary, Peru (2017–2020)
- *Margaret Ann Uyehara (1954–)
- Ambassador Extraordinary and Plenipotentiary, Montenegro (2014–2018)
- *Peter H. Vrooman (?–)
- Ambassador Extraordinary and Plenipotentiary, Rwanda (2018)
- Mary Kirtley Waters (1958–)
- Assistant Secretary of State for Legislative Affairs (2017–2018)
- *Donna A. Welton (?–)
- Chargé d’Affaires ad interim, Finland (2018)
- *Eric P. Whitaker (?–)
- Ambassador Extraordinary and Plenipotentiary, Niger (2017)
- *Kevin M. Whitaker (1957–)
- Ambassador Extraordinary and Plenipotentiary, Colombia (2014–2019)
- *Karen L. Williams (?–)
- Ambassador Extraordinary and Plenipotentiary, Suriname (2018)
- *Bruce M. Williamson (?–)
- Chargé d’Affaires, Bolivia (2020)
- Jackie Wolcott (?–)
- Representative of the U.S.A. to the Vienna Office of the United Nations (Vienna) (2018)
- Representative of the U.S.A. to the International Atomic Energy Agency (Vienna) (2018)
- *Henry T. Wooster (?–)
- Chargé d’Affaires ad interim, Jordan (2017–2018)
- Ambassador Extraordinary and Plenipotentiary, Jordan (2020)
- *Donald Y. Yamamoto (1953–)
- Ambassador Extraordinary and Plenipotentiary, Djibouti (2000–2003)
- Ambassador Extraordinary and Plenipotentiary, Ethiopia (2006–2009)
- Ambassador Extraordinary and Plenipotentiary, Somalia (2018)
- *Robert T. Yamate (1950–)
- Ambassador Extraordinary and Plenipotentiary, Comoros (2014–2018)
- Ambassador Extraordinary and Plenipotentiary, Madagascar (2014–2018)
- *Andrew R. Young (?–)
- Ambassador Extraordinary and Plenipotentiary, Burkina Faso (2016–2020)
- *Eugene Young (?–)
- Chargé d’Affaires ad interim, Austria (2018)
- *Marie L. Yovanovitch (1958–)
- Ambassador Extraordinary and Plenipotentiary, Kyrgyzstan (2004–2008)
- Ambassador Extraordinary and Plenipotentiary, Armenia (2008–2011)
- Ambassador Extraordinary and Plenipotentiary, Ukraine (2016–2019)
- *Melanie Zimmerman (?–)
- Chargé d’Affaires ad interim, Seychelles (2018)
- Chargé d’Affaires ad interim, Mauritius (2018)