Previous Ambassadors and Chiefs of Mission:
- Callista L. Gingrich (1966–)
- Ambassador Extraordinary and Plenipotentiary, December 22, 2017 – January 20, 2021
- Kenneth Francis Hackett (1947–)
- Ambassador Extraordinary and Plenipotentiary, October 21, 2013–January 20, 2017
- Miguel Humberto Diaz (1963–)
- Ambassador Extraordinary and Plenipotentiary, October 2, 2009–November 10, 2012
- Mary Ann Glendon (1938–)
- Ambassador Extraordinary and Plenipotentiary, February 29, 2008–January 19, 2009
- Francis Rooney (1953–)
- Ambassador Extraordinary and Plenipotentiary, November 12, 2005–January 10, 2008
- James (Jim) Nicholson (1938–)
- Ambassador Extraordinary and Plenipotentiary, September 13, 2001–January 31, 2005
- Corinne Clairborne Boggs (1916–2013)
- Ambassador Extraordinary and Plenipotentiary, December 16, 1997–March 1, 2001
- Raymond Leo Flynn (1939–)
- Ambassador Extraordinary and Plenipotentiary, September 2, 1993–September 20, 1997
- Thomas Patrick Melady (1927–2014)
- Ambassador Extraordinary and Plenipotentiary, October 3, 1989–March 1, 1993
- Frank J. Shakespeare Jr. (1925–)
- Ambassador Extraordinary and Plenipotentiary, January 8, 1987–July 28, 1989
- William A. Wilson (1914–2009)
- Ambassador Extraordinary and Plenipotentiary, April 9, 1984–July 18, 1986
- William A. Wilson (1914–2009)
- Personal Representative of the President, February 11, 1981–April 9, 1984
- Robert Ferdinand Wagner Jr. (1910–1991)
- Personal Representative of the President, November 28, 1978–January 16, 1981
- David Walters (1917–)
- Personal Representative of the President, July 6, 1977–August 17, 1978
- Henry Cabot Lodge Jr. (1902–1985)
- Personal Representative of the President, June 5, 1970–July 6, 1977
- Harold Hilgard Tittmann Jr. (1893–1980)
- Chargé d’Affaires, December 29, 1941–July 8, 1944
- Myron Charles Taylor (1874–1959)
- Personal Representative of the President, December 23, 1939–January 18, 1950
- Rufus King (1814–1876)
- Minister Resident, January 8, 1864–August 17, 1867
- Richard Milford Blatchford (1798–1875)
- Minister Resident, November 26, 1862–May 20, 1863
- Alexander Williams Randall (1819–1872)
- Minister Resident, June 6, 1862–August 4, 1862
- John Potter Stockton (1826–1900)
- Minister Resident, November 27, 1858–May 23, 1861
- Lewis Cass Jr. (1814–1878)
- Minister Resident, November 9, 1854–November 27, 1858
- Lewis Cass Jr. (1814–1878)
- Chargé d’Affaires, November 19, 1849–November 9, 1854
- Jacob L. Martin (?–1848)
- Chargé d’Affaires, August 19, 1848–August 26, 1848
Other Nominees
- Mark Wayne Clark (1896–1984)
- Ambassador Extraordinary and Plenipotentiary: Not commissioned; nomination of October 20, 1951, not confirmed by the Senate.
- David Armstrong (1836–1918)
- Chargé d’Affaires: Not commissioned; letter of credence dated April 30, 1869, but later cancelled.
- Lewis Cass Jr. (1814–1878)
- Envoy Extraordinary and Minister Plenipotentiary: Nomination of February 25, 1856, withdrawn before the Senate acted upon it. Nominated to the Pontifical States.
- Rufus King (1814–1876)
- Minister Resident: Declined appointment.
Source: State Department, Office of the Historian
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