# List of ambassadors of the United States to Argentina

The United States ambassador to Argentina is the official representative of the president of the United States to the head of state of Argentina.
Argentina had declared its independence from Spain in 1816 and there followed a series of revolutionary wars until 1861 when the nation was united. The United States recognized the government of Buenos Aires, the predecessor to Argentina, on January 27, 1823. Caesar Augustus Rodney was appointed as American Minister Plenipotentiary to Buenos Aires. Between 1854 and 1866, U.S. ambassadors were commissioned to the Argentine Confederation. Since 1867, ambassadors have been commissioned to the Argentine Republic.
Diplomatic relations between the U.S. and Argentina were interrupted but not severed in June 1944 when the U.S. government recalled its ambassador in a dispute with the newly appointed dictator Edelmiro Julián Farrell. The U.S. government believed that Farrell was not committed to the defense of the Western Hemisphere against the Axis powers. Normal relations were resumed with the appointment of a new ambassador in April 1945 when Argentina declared war against Germany.
The official residence of the U.S. Ambassador in Buenos Aires is the Bosch Palace, listed on the State Department's Register of Culturally Significant Property.

## Ambassadors and chiefs of mission

| # | Name | Appointed | Presented credentials | Terminated mission | Notes |
| 1 | Caesar A. Rodney | January 27, 1823 | December 27, 1823 | Died at post, June 10, 1824 | |
| - | John Murray Forbes | March 9, 1825 | August 20, 1825 | Died at post June 14, 1831 | Chargé d'affaires |
| - | Francis Baylies | January 3, 1832 | June 15, 1832 | September 26, 1832 | Chargé d'affaires |
| - | William Brent, Jr. | June 14, 1844 | November 15, 1844 | Presented recall July 7, 1846 | Chargé d'affaires |
| - | William A. Harris | February 19, 1846 | July 7, 1846 | Probably presented recall before September 12, 1851 | Chargé d'affaires |
| - | John S. Pendleton | February 27, 1851 | September 12, 1851 or soon thereafter | Relinquished charge from Montevideo, Uruguay March 31, 1854 | Chargé d'affaires |
| 2 | James A. Peden | June 29, 1854 | December 1, 1854 | Presented recall December 1, 1858 | Office upgraded to Minister Resident. U.S. Legation moved to Paraná. |
| 3 | Benjamin C. Yancey | June 14, 1858 | December 1, 1858 | Transmitted recall by note from Montevideo, Uruguay, September 30, 1859 | |
| 4 | John F. Cushman | July 18, 1859 | December 22, 1859 | Relinquished charge February 17, 1861 | U.S. Legation moved back from Paraná to Buenos Aires in 1862. |
| 5 | Robert M. Palmer | March 28, 1861 | October 5, 1861 | about April 12, 1862 | |
| 6 | Robert C. Kirk | March 4, 1862 | June 21, 1862 | July 26, 1866 | |
| 7 | Alexander Asboth | March 12, 1866 | October 20, 1866 | Died at post January 21, 1868 | |
| 8 | Henry G. Worthington | June 5, 1868 | September 11, 1868 | Presented recall July 8, 1869 | |
| 9 | Robert C. Kirk | April 16, 1869 | July 8, 1869 | Presented recall November 4, 1871 | |
| 10 | Julius White | December 12, 1872 | May 6, 1873 | November 14, 1873 | |
| 11 | Thomas O. Osborn | February 10, 1874 | May 21, 1874 | Probably presented recall on or before October 15, 1885 | Title/office upgraded to Minister Resident/Consul General |
| 12 | Bayless W. Hanna | June 17, 1885 | October 15, 1885 | July 8, 1889 | Title/office upgraded to Envoy Extraordinary and Minister Plenipotentiary in 1887. |
| 13 | John R. G. Pitkin | July 26, 1889 | October 31, 1889 | August 15, 1893 | |
| 14 | William I. Buchanan | January 26, 1894 | May 19, 1894 | July 11, 1899 | |
| 15 | William Paine Lord | October 16, 1899 | February 14, 1900 | March 27, 1903 | |
| 16 | John Barrett | July 2, 1903 | December 21, 1903 | April 27, 1904 | |
| 17 | Arthur M. Beaupre | March 17, 1904 | June 17, 1904 | May 2, 1908 | |
| 18 | Spencer F. Eddy | April 2, 1908 | August 27, 1908 | January 2, 1909 | |
| 19 | Charles Hitchcock Sherrill | April 1, 1909 | June 30, 1909 | September 16, 1910 | |
| 20 | John W. Garrett – Career FSO | December 14, 1911 | February 29, 1912 | November 22, 1913 | |
| 21 | Frederic Jesup Stimson – Political appointee | October 1, 1914 | January 8, 1915 | April 21, 1921 | In 1914 the office of Envoy was upgraded to Ambassador Extraordinary and Plenipotentiary. |
| 22 | John W. Riddle – Career FSO | November 18, 1921 | March 8, 1922 | May 28, 1925 | |
| 23 | Peter Augustus Jay – Career FSO | March 18, 1925 | September 24, 1925 | December 30, 1926 | |
| 24 | Robert Woods Bliss – Career FSO | February 17, 1927 | September 9, 1927 | April 29, 1933 | |
| 25 | Alexander W. Weddell – Career FSO | June 3, 1933 | September 18, 1933 | October 29, 1938 | |
| 26 | Norman Armour – Career FSO | May 18, 1939 | June 19, 1939 | Recalled June 27, 1944; left post June 29, 1944 | Normal diplomatic relations interrupted from February 1944 to April 1945 |
| 27 | Spruille Braden – Political appointee | May 8, 1945 | May 21, 1945 | September 23, 1945 | |
| 28 | George S. Messersmith – Career FSO | April 12, 1946 | May 23, 1946 | June 12, 1947 | |
| 29 | James Cabell Bruce – Political appointee | July 12, 1947 | August 21, 1947 | August 20, 1949 | |
| 30 | Stanton Griffis – Political appointee | September 22, 1949 | November 17, 1949 | September 23, 1950 | |
| 31 | Ellsworth Bunker – Political appointee | March 13, 1951 | May 8, 1951 | March 12, 1952 | |
| 32 | Albert F. Nufer – Career FSO | May 29, 1952 | August 14, 1952 | May 12, 1956 | |
| 33 | Willard L. Beaulac – Career FSO | May 10, 1956 | June 1, 1956 | August 2, 1960 | |
| 34 | Roy R. Rubottom, Jr. – Career FSO | August 27, 1960 | October 20, 1960 | October 19, 1961 | |
| 35 | Robert M. McClintock – Career FSO | February 6, 1962 | February 14, 1962 | May 10, 1964 | |
| 36 | Edwin M. Martin – Career FSO | January 29, 1964 | June 11, 1964 | January 5, 1968 | |
| 37 | Carter L. Burgess – Political appointee | July 24, 1968 | August 21, 1968 | March 14, 1969 | |
| 38 | John Davis Lodge – Political appointee | May 27, 1969 | July 23, 1969 | November 10, 1973 | |
| 39 | Robert C. Hill – Political appointee | December 19, 1973 | February 15, 1974 | May 10, 1977 | |
| 40 | Raul Hector Castro – Political appointee | September 15, 1977 | November 16, 1977 | July 30, 1980 | |
| 41 | Harry W. Shlaudeman – Career FSO | October 2, 1980 | November 4, 1980 | August 26, 1983 | |
| 42 | Frank V. Ortiz, Jr. – Career FSO | November 18, 1983 | November 29, 1983 | August 29, 1986 | |
| 43 | Theodore E. Gildred – Political appointee | October 16, 1986 | November 6, 1986 | May 31, 1989 | |
| 44 | Terence A. Todman – Career FSO | April 20, 1989 | June 13, 1989 | June 28, 1993 | |
| 45 | James Richard Cheek – Career FSO | May 28, 1993 | July 19, 1993 | December 18, 1996 | |
| - | Ronald D. Godard – Career FSO | — | December 18, 1996 | October 1997 | Chargé d'affaires |
| - | Manuel Rocha – Career FSO | — | October 1997 | July 3, 2000 | Chargé d'affaires |
| 46 | James Donald Walsh – Career FSO | June 14, 2000 | July 3, 2000 | May 21, 2003 | |
| 47 | Lino Gutierrez – Career FSO | April 16, 2003 | October 15, 2003 | April 8, 2006 | |
| 48 | Earl Anthony Wayne – Career FSO | August 1, 2006 | January 19, 2007 | April 6, 2009 | |
| 49 | Vilma Socorro Martínez – Political appointee | July 24, 2009 | September 18, 2009 | July 6, 2013 | |
| 50 | Noah Mamet – political appointee | December 2, 2014 | January 21, 2015 | January 20, 2017 | |
| 51 | Edward C. Prado – political appointee | March 22, 2018 | May 15, 2018 | January 20, 2021 | |
| - | MaryKay Carlson – Career FSO | January 20, 2021 | | January 24, 2022 | Chargé d'affaires |
| 52 | Marc Stanley – political appointee | December 18, 2021 | January 24, 2022 | January 17, 2025 | |
| - | Abigail L. Dressel | January 17, 2025 | | January 20, 2025 | Chargé d'affaires |