The following is a list of United States ambassadors, or other chiefs of mission, to Costa Rica.
Representative Title Presentationof credentials Terminationof mission Appointed by Solon BorlandCommissioned to Central America; resident at Managua. Envoy Extraordinary and Minister Plenipotentiary Borland did not present credentials in Costa Rica April 17, 1854 Franklin Pierce Mirabeau B. Lamar Minister Resident September 14, 1858 May 20, 1859 James Buchanan Alexander Dimitry 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 WilliamsonCommissioned to "the Central American States" but accredited individually to Costa Rica, El Salvador, Guatemala, Honduras, and Nicaragua; resident at Guatemala. August 13, 1873 January 31, 1879 Ulysses S. Grant Cornelius A. Logan December 25, 1879 April 17, 1882 Rutherford B. Hayes Henry Cook HallHall 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. Envoy Extraordinary and Minister Plenipotentiary November 22, 1882 May 16, 1889 Chester A. Arthur Lansing B. Mizner August 30, 1889 December 31, 1890 Benjamin Harrison Romualdo Pacheco May 7, 1891 October 31, 1891 Richard Cutts ShannonAlso accredited to El Salvador and Nicaragua; resident at Managua. October 31, 1891 April 30, 1893 Lewis Baker May 20, 1893 December 9, 1897 Grover Cleveland William L. MerryOriginally 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. 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, 1917Normal relations interrupted, January 27, 1917. 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 Mike Flores Chargé d'Affaires ad interim January 20, 2025 August 1, 2025 Donald Trump Jennifer Savage August 5, 2025 January 5, 2026 Melinda Hildebrand Ambassador Extraordinary and Plenipotentiary January 8, 2026 Incumbent
See also Costa Rica – United States relations Foreign relations of Costa Rica Ambassadors of the United States
References
United States Department of State: Background notes on Costa Rica
External links United States Department of State: Chiefs of Mission for Costa Rica United States Department of State: Costa Rica United States Embassy in San Jose