List of ambassadors of the United States to Costa Rica

Ambassador of the United States to Costa Rica
Seal of the United States Department of State
Flag of a United States Ambassador
Incumbent
Mike Flores
Chargé d'affaires
since January 20, 2025
NominatorThe President of the United States
AppointerThe President
with Senate advice and consent
Inaugural holderSolon Borland
as Envoy Extraordinary and Minister Plenipotentiary
WebsiteU.S. Embassy - San Jose

The following is a list of United States ambassadors, or other chiefs of mission, to Costa Rica.

Representative Title Presentation
of credentials 		Termination
of mission 		Appointed by
Solon Borland[1] Envoy Extraordinary and Minister Plenipotentiary [2] April 17, 1854 Franklin Pierce
Mirabeau B. Lamar[1] Minister Resident September 14, 1858 May 20, 1859 James Buchanan
Alexander Dimitry[1] September 29, 1859 April 27, 1861
Charles N. Riotte August 29, 1861 January 18, 1867 Abraham Lincoln
Albert G. Lawrence January 18, 1867 June 24, 1868 Andrew Johnson
Jacob B. Blair October 6, 1868 June 30, 1873
George Williamson[3] August 13, 1873 January 31, 1879 Ulysses S. Grant
Cornelius A. Logan[3] December 25, 1879 April 17, 1882 Rutherford B. Hayes
Henry Cook Hall[3][4] Envoy Extraordinary and Minister Plenipotentiary November 22, 1882 May 16, 1889 Chester A. Arthur
Lansing B. Mizner[3] August 30, 1889 December 31, 1890 Benjamin Harrison
Romualdo Pacheco[3] May 7, 1891 October 31, 1891
Richard Cutts Shannon[5] October 31, 1891 April 30, 1893
Lewis Baker[5] May 20, 1893 December 9, 1897 Grover Cleveland
William L. Merry[6] January 15, 1898 March 4, 1911 William McKinley
Lewis Einstein November 3, 1911 December 29, 1911 William H. Taft
Edward J. Hale August 29, 1913 April 19, 1917[7] Woodrow Wilson
Stewart Johnson Chargé d'Affaires ad interim April 19, 1917 December 5, 1918
John F. Martin, Jr. October 15, 1920 January 1921
Walter C. Thurston January 1921 March 1922 Warren G. Harding
Roy T. Davis Envoy Extraordinary and Minister Plenipotentiary March 14, 1922 January 4, 1930
Charles C. Eberhardt Envoy Extraordinary and Minister Plenipotentiary March 14, 1930 September 24, 1933 Herbert Hoover
Leo R. Sack October 16, 1933 January 10, 1937 Franklin D. Roosevelt
William H. Hornibrook September 2, 1937 September 1, 1941
Arthur Bliss Lane October 27, 1941 March 17, 1942
Robert M. Scotten March 31, 1942 April 20, 1943
Fay Allen Des Portes Ambassador Extraordinary and Plenipotentiary May 20, 1943 September 11, 1944
Hallett Johnson February 14, 1945 May 16, 1947
Walter J. Donnelly June 27, 1947 October 15, 1947 Harry S. Truman
Nathaniel Penistone Davis January 31, 1948 June 8, 1949
Joseph Flack August 13, 1949 September 21, 1950
Philip Bracken Fleming November 20, 1951 August 7, 1953
Robert C. Hill November 4, 1953 September 10, 1954 Dwight D. Eisenhower
Robert F. Woodward December 3, 1954 March 15, 1958
Whiting Willauer May 5, 1958 April 17, 1961
Raymond Telles May 22, 1961 February 19, 1967 John F. Kennedy
Clarence A. Boonstra March 8, 1967 August 11, 1969 Lyndon B. Johnson
Walter C. Ploeser April 27, 1970 April 13, 1972 Richard Nixon
Viron P. Vaky October 17, 1972 February 9, 1974
Terence A. Todman March 17, 1975 January 24, 1977 Gerald Ford
Marvin Weissman June 28, 1977 March 22, 1980 Jimmy Carter
Francis J. McNeil July 8, 1980 June 27, 1983
Curtin Winsor, Jr. July 14, 1983 February 18, 1985 Ronald Reagan
Lewis Arthur Tambs August 1, 1985 January 1, 1987
Deane Roesch Hinton November 17, 1987 January 4, 1990
Luis Guinot, Jr. August 27, 1991 March 1, 1993 George H. W. Bush
Robert O. Homme Chargé d'Affaires ad interim March 1, 1993 July 1993 Bill Clinton
Donald Harrington July 1993 August 1993
Joseph Becelia August 1993 October 21, 1994
Peter Jon de Vos Ambassador Extraordinary and Plenipotentiary October 21, 1994 October 14, 1997
Thomas J. Dodd, Jr. November 26, 1997 March 1, 2001
John J. Danilovich October 10, 2001 June 1, 2004 George W. Bush
Mark Langdale November 8, 2005 July 31, 2007
Peter M. Brennan Chargé d'Affaires ad interim August 1, 2007 May 5, 2008
Peter Cianchette Ambassador Extraordinary and Plenipotentiary May 5, 2008 June 19, 2009
Anne S. Andrew January 12, 2010 June 12, 2013 Barack Obama
S. Fitzgerald Haney July 8, 2015 July 15, 2017
Sharon Day September 25, 2017 January 20, 2021 Donald Trump
Cynthia Telles March 11, 2022 January 20, 2025 Joe Biden

See also

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References

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  1. ^ a b c Commissioned to Central America; resident at Managua.
  2. ^ Borland did not present credentials in Costa Rica
  3. ^ a b c d e Commissioned to "the Central American States" but accredited individually to Costa Rica, El Salvador, Guatemala, Honduras, and Nicaragua; resident at Guatemala.
  4. ^ Hall was appointed first as Minister Resident on April 17, 1882, and then promoted to “Envoy Extraordinary and Minister Plenipotentiary” on July 13, 1882; he presented both sets of credentials the same day, November 22, 1882.
  5. ^ a b Also accredited to El Salvador and Nicaragua; resident at Managua.
  6. ^ Originally accredited to Costa Rica, El Salvador, and Nicaragua; after December 12, 1907, only to Costa Rica and Nicaragua; after July 1, 1908, only Costa Rica. Resident at San José.
  7. ^ Normal relations interrupted, January 27, 1917.
  • "U.S. Diplomatic chiefs of mission to Costa Rica". The Political Graveyard. March 10, 2005. Retrieved August 27, 2007.
  • United States Department of State: Background notes on Costa Rica
  • Public Domain This article incorporates public domain material from U.S. Bilateral Relations Fact Sheets. United States Department of State.
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