List of ambassadors of the United States to Guyana
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The following is a list of ambassadors of the United States to Guyana. The current title given by the United States State Department to this position is Ambassador Extraordinary and Minister Plenipotentiary.
| Representative | Title | Presentation of credentials |
Termination of mission |
Appointed by |
|---|---|---|---|---|
| Delmar R. Carlson | Chargé d'Affaires ad interim | May 26, 1966 | August 17, 1966 | Lyndon B. Johnson |
| Delmar R. Carlson | Ambassador Extraordinary and Plenipotentiary | August 17, 1966 | September 13, 1969 | |
| Spencer Matthews King | Ambassador Extraordinary and Plenipotentiary | October 15, 1969 | March 8, 1974 | Richard Nixon |
| Max V. Krebs | Ambassador Extraordinary and Plenipotentiary | April 4, 1974 | June 15, 1976 | |
| John R. Burke | Ambassador Extraordinary and Plenipotentiary | September 30, 1977 | September 22, 1979 | Jimmy Carter |
| George B. Roberts Jr. | Ambassador Extraordinary and Plenipotentiary | November 5, 1979 | September 8, 1981 | |
| Gerald Eustis Thomas | Ambassador Extraordinary and Plenipotentiary | February 18, 1982 | September 6, 1983 | Ronald Reagan |
| Clint Arlen Lauderdale | Ambassador Extraordinary and Plenipotentiary | August 2, 1984 | June 11, 1987 | |
| Theresa Anne Tull | Ambassador Extraordinary and Plenipotentiary | September 18, 1987 | July 10, 1990 | |
| Dennis K. Hays | Chargé d'Affaires ad interim | July 10, 1990 | January 21, 1992 | George H. W. Bush |
| George Fleming Jones | Ambassador Extraordinary and Plenipotentiary | January 21, 1992 | August 25, 1995 | |
| David L. Hobbs[1] | Ambassador Extraordinary and Plenipotentiary | November 2, 1995 | September 15, 1996 | Bill Clinton |
| Hugh Simon | Chargé d'Affaires ad interim | September 15, 1996 | September 25, 1997 | |
| James F. Mack | Ambassador Extraordinary and Plenipotentiary | September 25, 1997 | April 21, 2000 | |
| Ronald D. Godard | Ambassador Extraordinary and Plenipotentiary | January 29, 2001 | July 6, 2003 | George W. Bush |
| Roland W. Bullen | Ambassador Extraordinary and Plenipotentiary | August 14, 2003 | July 14, 2006[2] | |
| David M. Robinson | Ambassador Extraordinary and Plenipotentiary | August 26, 2006 | March 16, 2008[3] | |
| John Melvin Jones[4] | Ambassador Extraordinary and Plenipotentiary | July 21, 2008 | December 31, 2009[5] | |
| Thomas C. Pierce | Chargé d'Affaires ad interim | August 31, 2010[6] | September 15, 2011 | Barack Obama |
| D. Brent Hardt | Ambassador Extraordinary and Plenipotentiary | September 15, 2011 | July 6, 2014 | |
| Perry L. Holloway | Ambassador Extraordinary and Plenipotentiary | October 2, 2015 | December 8, 2018 | |
| Terry Steers-Gonzalez | Chargé d'Affaires ad interim | January 2019 | March 13, 2019 | Donald Trump |
| Sarah-Ann Lynch | Ambassador Extraordinary and Plenipotentiary | March 13, 2019 | September 12, 2023[7] | |
| Adrienne Galanek | Chargé d'Affaires ad interim | September 13, 2023 | October 23, 2023 | Joe Biden |
| Nicole D. Theriot | Ambassador Extraordinary and Plenipotentiary | October 23, 2023 | Incumbent |
StyleThe Honorable
NominatorThe president of the United States
AppointerThe president
with Senate advice and consent
with Senate advice and consent
| Ambassador of the United States to Guyana | |
|---|---|
Seal of the United States Department of State | |
Flag of a United States ambassador | |
| Style | The Honorable |
| Residence | Georgetown, Guyana |
| Nominator | The president of the United States |
| Appointer | The president with Senate advice and consent |
| Inaugural holder | Delmar R. Carlson as Chargé d'Affaires ad interim |
| Formation | May 26, 1966 |
| Website | U.S. Embassy - Georgetown |
Consuls to Demerara, British Guyana
As of 1852, the consul employed two or three consular agents.[8]

- 1832–1846 - Moses Benjamin[9][10][11]
- 1846–1849 - Samuel J. Masters[12][13][14]
- 1849 - Elijah J. Payne[15]
- 1849–1852 - Charles Benjamin[16][14]
- 1853–1854 - Rev. Charles Wheeler Denison[17][18][19][20]
- 1858–1859 - A. V. Colvin[21][22]
- 1860 - Thomas C. Jenkins Jr.[23]
- 1861 - Theodore D. Edwards[24][25][26]
- 1863–1864 - Charles Gilbert Hannah[27][28]
- 1865–1888 - Philip Figyelmessy[29][30][31][32][33][34]
- 1887–1888 - David T. Bunker[35][36]
- 1888–1891 - W. T. Walthall[37][38][39][40]
- 1894 - Louis Springer Deleplaine[41][42][43]
- 1895 - Dr. James Spaight[44]
- 1896–1897 - Andrew Johnson Patterson[45][46]
- 1897–1904 - George H. Moulton[47][48][49][50]