| Representative |
Title |
Presentation of credentials |
Termination of mission |
Appointed by |
| B.Irvine[2] |
Chargé d'Affaires |
February 14, 1819 |
June 29, 1835[a] |
Martin Van Buren |
| John G. A. Williamson |
Chargé d'Affaires |
June 30, 1835 |
August 7, 1840[a] |
Andrew Jackson |
| A. A. Hall |
Chargé d'Affaires |
September 22, 1841 |
November 29, 1844 |
John Tyler |
| Vespasian Ellis |
Chargé d'Affaires |
November 29, 1844 |
August 1, 1845 |
| Benjamin G. Shields |
Chargé d'Affaires |
August 1, 1845 |
January 2, 1850 |
James K. Polk |
| I. Nevitt Steele |
Chargé d'Affaires |
January 7, 1850 |
October 18, 1853 |
Zachary Taylor |
| Charles Eames |
Chargé d'Affaires |
May 23, 1854 |
September 2, 1854 |
Franklin Pierce |
| Minister Resident |
September 2, 1854 |
September 14, 1858 |
| Edward A. Turpin |
Minister Resident |
September 21, 1858 |
November 16, 1861 |
James Buchanan |
| Henry T. Blow |
Minister Resident |
June 8, 1861[b] |
February 22, 1862 |
Abraham Lincoln |
| Erastus D. Culver |
Minister Resident |
October 7, 1862 |
May 17, 1866 |
| James Wilson |
Minister Resident |
October 10, 1866 |
August 8, 1867[a] |
Andrew Johnson |
| Thomas N. Stilwell |
Minister Resident |
December 16, 1867 |
June 7, 1868 |
| James R. Partridge |
Minister Resident |
July 8, 1869 |
May 9, 1870 |
Ulysses S. Grant |
| William A. Pile |
Minister Resident |
October 9, 1871 |
January 9, 1874 |
| Thomas Russell |
Minister Resident |
July 4, 1874 |
January 29, 1877[c] |
| Jehu Baker |
Minister Resident |
March 18, 1878 |
September 5, 1881 |
Rutherford B. Hayes |
| George W. Carter |
Minister Resident |
September 1881 |
May 16, 1882 |
Chester A. Arthur |
| Jehu Baker |
Minister Resident |
May 16, 1882 |
July 7, 1884 |
Rutherford B. Hayes[d] |
| Minister Resident/Consul General |
July 7, 1884 |
June 20, 1885 |
Chester A. Arthur |
| Charles L. Scott |
Minister Resident/Consul General |
June 24, 1885 |
September 18, 1888 |
Grover Cleveland |
| Envoy Extraordinary and Minister Plenipotentiary |
September 18, 1888 |
January 18, 1889 |
| William L. Scruggs |
Envoy Extraordinary and Minister Plenipotentiary |
May 30, 1889 |
December 15, 1892 |
Benjamin Harrison |
| Frank C. Partridge |
Envoy Extraordinary and Minister Plenipotentiary |
March 4, 1893 |
January 9, 1894 |
Grover Cleveland |
| Seneca Haselton |
Envoy Extraordinary and Minister Plenipotentiary |
July 14, 1894 |
May 1, 1895 |
| Allen Thomas |
Envoy Extraordinary and Minister Plenipotentiary |
July 22, 1895 |
June 30, 1897 |
| Francis B. Loomis |
Envoy Extraordinary and Minister Plenipotentiary |
October 6, 1897 |
March 25, 1901[e] |
William McKinley |
| Herbert W. Bowen |
Envoy Extraordinary and Minister Plenipotentiary |
August 24, 1901 |
May 1, 1905 |
| William W. Russell |
Envoy Extraordinary and Minister Plenipotentiary |
August 22, 1905 |
March 8, 1908 |
Theodore Roosevelt |
| Jacob Sleeper |
Chargé d'Affaires ad interim[f] |
March 8, 1908 |
March 15, 1909 |
| William W. Russell |
Envoy Extraordinary and Minister Plenipotentiary |
March 15, 1909 |
March 24, 1910 |
William H. Taft |
| John W. Garrett |
Envoy Extraordinary and Minister Plenipotentiary |
March 30, 1911 |
October 21, 1911 |
| Elliott Northcott |
Envoy Extraordinary and Minister Plenipotentiary |
February 14, 1912 |
June 3, 1913 |
| Preston Buford McGoodwin |
Envoy Extraordinary and Minister Plenipotentiary |
October 22, 1913 |
October 5, 1921 |
Woodrow Wilson |
| Willis C. Cook |
Envoy Extraordinary and Minister Plenipotentiary |
February 1, 1922 |
May 7, 1929 |
Warren G. Harding |
| George T. Summerlin |
Envoy Extraordinary and Minister Plenipotentiary |
February 21, 1930 |
January 15, 1935 |
Herbert Hoover |
| Meredith Nicholson |
Envoy Extraordinary and Minister Plenipotentiary |
April 22, 1935 |
April 14, 1938 |
Franklin D. Roosevelt |
| Antonio C. Gonzalez |
Envoy Extraordinary and Minister Plenipotentiary |
May 18, 1938 |
February 8, 1939 |
| Frank P. Corrigan |
Ambassador Extraordinary and Plenipotentiary |
August 14, 1939 |
September 5, 1947 |
| Walter J. Donnelly |
Ambassador Extraordinary and Plenipotentiary |
December 1, 1947 |
September 2, 1950 |
Harry S. Truman |
| Norman Armour |
Ambassador Extraordinary and Plenipotentiary |
December 7, 1950 |
October 2, 1951 |
| Fletcher Warren |
Ambassador Extraordinary and Plenipotentiary |
November 21, 1951 |
March 24, 1956 |
| Dempster McIntosh |
Ambassador Extraordinary and Plenipotentiary |
April 26, 1956 |
December 27, 1957 |
Dwight D. Eisenhower |
| Edward J. Sparks |
Ambassador Extraordinary and Plenipotentiary |
March 19, 1958 |
April 15, 1961 |
| Teodoro Moscoso |
Ambassador Extraordinary and Plenipotentiary |
May 23, 1961 |
November 21, 1961 |
John F. Kennedy |
| C. Allan Stewart |
Ambassador Extraordinary and Plenipotentiary |
March 14, 1962 |
November 28, 1964 |
| Maurice M. Bernbaum |
Ambassador Extraordinary and Plenipotentiary |
March 4, 1965 |
July 9, 1969 |
Lyndon B. Johnson |
| Robert M. McClintock |
Ambassador Extraordinary and Plenipotentiary |
July 7, 1970 |
March 14, 1975 |
Richard Nixon |
| Harry W. Shlaudeman |
Ambassador Extraordinary and Plenipotentiary |
May 9, 1975 |
May 14, 1976 |
Gerald Ford |
| Viron P. Vaky |
Ambassador Extraordinary and Plenipotentiary |
July 26, 1976 |
June 24, 1978 |
| William H. Luers |
Ambassador Extraordinary and Plenipotentiary |
October 9, 1978 |
June 28, 1982 |
Jimmy Carter |
| George W. Landau |
Ambassador Extraordinary and Plenipotentiary |
August 25, 1982 |
June 4, 1985 |
Ronald Reagan |
| Otto J. Reich |
Ambassador Extraordinary and Plenipotentiary |
June 6, 1986 |
July 17, 1989 |
| Kenneth N. Skoug, Jr. |
Chargé d'Affaires ad interim |
July 17, 1989 |
September 1990 |
George H. W. Bush |
| Robert C. Felder |
Chargé d'Affaires ad interim |
September 1990 |
November 19, 1990 |
| Michael Martin Skol |
Ambassador Extraordinary and Plenipotentiary |
November 19, 1990 |
August 23, 1993 |
| Jeffrey Davidow |
Ambassador Extraordinary and Plenipotentiary |
October 1, 1993 |
May 16, 1996 |
Bill Clinton |
| John F. Keane[3] |
Chargé d'Affaires ad interim |
May 1996 |
March 1997 |
| John Francis Maisto |
Ambassador Extraordinary and Plenipotentiary |
March 21, 1997 |
August 7, 2000 |
| Donna Jean Hrinak |
Ambassador Extraordinary and Plenipotentiary |
August 25, 2000 |
January 23, 2002 |
| Charles S. Shapiro |
Ambassador Extraordinary and Plenipotentiary |
March 19, 2002 |
August 31, 2004 |
George W. Bush |
| William Brownfield |
Ambassador Extraordinary and Plenipotentiary |
October 15, 2004[g] |
July 2007 |
| Patrick Duddy[h] |
Ambassador Extraordinary and Plenipotentiary |
October 29, 2007[i] |
September 6, 2008[5] |
| John Caulfield |
Chargé d'Affaires ad interim |
September 6, 2008[6] |
July 1, 2009[7] |
| Patrick Duddy[h] |
Ambassador Extraordinary and Plenipotentiary |
July 1, 2009[7] |
July 16, 2010 |
Barack Obama |
| Phil Laidlaw |
Chargé d'Affaires ad interim |
July 16, 2010[8] |
July 9, 2014 |
|
| M. Lee McClenny |
Chargé d'Affaires ad interim |
July 9, 2014[9] |
December 15, 2017[10] |
|
| Larry Leon Palmer[j] |
Ambassador Extraordinary and Plenipotentiary |
Not commissioned |
— |
Barack Obama |
| Todd D. Robinson |
Chargé d'Affaires ad interim |
December 18, 2017 |
May 22, 2018[12] |
Donald Trump |
| James B. Story |
Ambassador Extraordinary and Plenipotentiary[k] |
July 2018 |
May 19, 2023[13] |
| Francisco Palmieri |
Chief of Mission[k] |
May 19, 2023 |
January 20, 2025 |
Joe Biden |
| Michael A. Barkin |
Chargé d'Affaires ad interim[k] |
January 20, 2025 |
February 1, 2025 |
Donald Trump |
| John McNamara |
Chargé d'Affaires ad interim[k] |
February 1, 2025 |
Incumbent |