# List of ambassadors of the United States to the United Kingdom

The United States ambassador to the United Kingdom, formally the ambassador of the United States of America to the Court of St James's is the official representative of the president of the United States and the American government to the monarch (Court of St. James's) and government of the United Kingdom. The position was last held by Jane D. Hartley, who presented her credentials to Queen Elizabeth II on July 19, 2022.
The position is regarded as one of the most prestigious posts in the United States Foreign Service due to the "special relationship" between the United States and the United Kingdom. The ambassadorship has been held by various notable politicians, including five who would later become president: John Adams, James Monroe, John Quincy Adams, Martin Van Buren and James Buchanan. However, the modern tendency of American presidents (of both parties) is to appoint keen political fundraisers from previous presidential campaigns, despite the importance and prestige of the office.
The ambassador and executive staff work at the American Embassy in Nine Elms, London. The official residence of the ambassador is Winfield House in Regent's Park.

## Duties

The ambassador's main duty is to present U.S. policies to the government of the United Kingdom and its people, as well as report British policies and views to the federal government of the United States. The ambassador serves as a primary channel of communication between the two nations and plays an important role in treaty negotiations.
The ambassador is the head of the United States' consular service in the United Kingdom. As well as directing diplomatic activity in support of trade, the ambassador is ultimately responsible for visa services and for the provision of consular support to American citizens in the UK and oversees cultural relations between the two countries.

## List of U.S. chiefs of mission to the Court of St James's
### Ministers (1785–1812)

Independent
Democratic-Republican
Democrat
Whig
Republican
John Adams is referred to as the first "ambassador". He is also referred to as the first "minister plenipotentiary". Plenipotentiary means "having full power"; a minister that has power to act for their country in all matters.
| Name | Appointment | Presentation | Termination | Appointer | Notes |
| John Adams | February 24, 1785 | June 1, 1785 | February 20, 1788 | Congress | Second president of the United States |
| Thomas Pinckney | January 12, 1792 | August 9, 1792 | July 27, 1796 | George Washington | |
| Rufus King | May 20, 1796 | July 27, 1796 | May 16, 1803 | George Washington | |
| James Monroe | 1803 | August 17, 1803 | October 7, 1807 | Thomas Jefferson | Fifth president of the United States |
| William Pinkney | February 26, 1808 | April 27, 1808 | May 7, 1811 | Thomas Jefferson | |
| Jonathan Russell | July 27, 1811 | November 15, 1811 | June 18, 1812 | James Madison | |

### Ministers (1815–1893)

Diplomatic relations with what had now become the United Kingdom of Great Britain and Ireland were restored after the War of 1812. The Congress of Vienna (1815) established a uniform system of diplomatic rank. Under that system, the highest rank of "ambassador" was a personal representative of a sovereign, and the next rank of "minister", represented a government. As a republic, the United States maintained diplomatic relations with Britain at the rank of Envoy Extraordinary and Minister Plenipotentiary. The rank was colloquially known as Minister, and the position continued to be referred to as "United States Minister to Great Britain".
| Name | Appointment | Presentation | Termination | Appointer | Notes |
| John Quincy Adams | April 28, 1814 | June 8, 1815 | May 14, 1817 | James Madison | Sixth president of the United States |
| Richard Rush | 1817 | February 12, 1818 | April 27, 1825 | James Monroe | |
| Rufus King | May 5, 1825 | November 11, 1825 | June 16, 1826 | John Quincy Adams | |
| Albert Gallatin | May 10, 1826 | September 1, 1826 | October 4, 1827 | John Quincy Adams | |
| William Beach Lawrence | Nov 23, 1827 | | November 24, 1828 | John Quincy Adams | |
| James Barbour | May 23, 1828 | November 24, 1828 | October 1, 1829 | John Quincy Adams | |
| Louis McLane | 1829 | October 12, 1829 | June 13, 1831 | Andrew Jackson | |
| Martin Van Buren | August 8, 1831 | September 21, 1831 | March 19, 1832 | Andrew Jackson | Eighth president of the United States |
| Aaron Vail | July 13, 1832 | | July 13, 1836 | Andrew Jackson | |
| Andrew Stevenson | March 16, 1836 | July 13, 1836 | October 21, 1841 | Andrew Jackson | |
| Edward Everett | 1841 | December 16, 1841 | August 8, 1845 | John Tyler | |
| Louis McLane | 1845 | August 8, 1845 | August 18, 1846 | James K. Polk | |
| George Bancroft | September 9, 1846 | November 12, 1846 | August 31, 1849 | James K. Polk | |
| Abbott Lawrence | August 20, 1849 | October 20, 1849 | October 12, 1852 | Zachary Taylor | |
| Joseph R. Ingersoll | August 21, 1852 | October 16, 1852 | August 23, 1853 | Millard Fillmore | |
| James Buchanan | April 11, 1853 | August 23, 1853 | March 15, 1856 | Franklin Pierce | Fifteenth president of the United States |
| George M. Dallas | February 4, 1856 | April 4, 1856 | May 16, 1861 | Franklin Pierce | |
| Charles Francis Adams Sr. | March 20, 1861 | May 16, 1861 | May 13, 1868 | Abraham Lincoln | |
| Reverdy Johnson | June 12, 1868 | September 14, 1868 | May 13, 1869 | Andrew Johnson | |
| John Lothrop Motley | April 13, 1869 | June 18, 1869 | December 6, 1870 | Ulysses S. Grant | |
| Robert C. Schenck | December 22, 1870 | June 23, 1871 | March 3, 1876 | Ulysses S. Grant | |
| Edwards Pierrepont | May 22, 1876 | July 11, 1876 | December 22, 1877 | Ulysses S. Grant | |
| John Welsh | November 9, 1877 | December 22, 1877 | August 14, 1879 | Rutherford B. Hayes | |
| James Russell Lowell | January 26, 1880 | March 11, 1880 | May 19, 1885 | Rutherford B. Hayes | |
| Edward John Phelps | March 23, 1885 | May 19, 1885 | January 31, 1889 | Grover Cleveland | |
| Robert Todd Lincoln | March 30, 1889 | May 25, 1889 | May 4, 1893 | Benjamin Harrison | |

### Ambassadors (1893–present)

Although France became a republic in 1870, the country continued to exchange ambassadors with other Great Powers. In 1893, the United States followed the French precedent and upgraded its relations with other Great Powers to the ambassadorial level. The United States Legation in London became the United States Embassy, and the United States Minister to Great Britain became the United States Ambassador to Great Britain.
| Name | Portrait | Appointment | Presentation | Termination | Appointer | Notes |
| Thomas F. Bayard | | 1893 | June 22, 1893 | March 17, 1897 | Grover Cleveland | |
| John Hay | | 1897 | May 3, 1897 | September 12, 1898 | William McKinley | |
| Joseph Hodges Choate | | January 19, 1899 | March 6, 1899 | May 23, 1905 | William McKinley | |
| Whitelaw Reid | | March 8, 1905 | June 5, 1905 | December 15, 1912 | Theodore Roosevelt | † |
| Walter Hines Page | | April 21, 1913 | May 30, 1913 | October 3, 1918 | Woodrow Wilson | |
| John W. Davis | | November 21, 1918 | December 18, 1918 | March 9, 1921 | Woodrow Wilson | |
| George Brinton McClellan Harvey | | April 16, 1921 | May 12, 1921 | November 3, 1923 | Warren G. Harding | |
| Frank B. Kellogg | | 1924 | January 14, 1924 | February 10, 1925 | Calvin Coolidge | |
| Alanson B. Houghton | | February 24, 1925 | April 27, 1925 | March 28, 1929 | Calvin Coolidge | |
| Charles G. Dawes | | April 16, 1929 | June 15, 1929 | December 30, 1931 | Herbert Hoover | |
| Andrew W. Mellon | | February 5, 1932 | April 9, 1932 | March 17, 1933 | Herbert Hoover | |
| Robert Worth Bingham | | March 23, 1933 | May 23, 1933 | November 19, 1937 | Franklin D. Roosevelt | |
| Joseph P. Kennedy | | January 17, 1938 | March 8, 1938 | October 22, 1940 | Franklin D. Roosevelt | |
| John G. Winant | | February 11, 1941 | March 1, 1941 | April 10, 1946 | Franklin D. Roosevelt | |
| W. Averell Harriman | | April 2, 1946 | April 30, 1946 | October 1, 1946 | Harry S. Truman | |
| Lewis W. Douglas | | March 6, 1947 | March 25, 1947 | November 16, 1950 | Harry S. Truman | |
| Walter S. Gifford | | December 12, 1950 | December 21, 1950 | January 23, 1953 | Harry S. Truman | |
| Winthrop W. Aldrich | | February 2, 1953 | February 20, 1953 | February 1, 1957 | Dwight D. Eisenhower | |
| John Hay Whitney | | February 11, 1957 | February 28, 1957 | January 14, 1961 | Dwight D. Eisenhower | |
| David K. E. Bruce | | February 22, 1961 | March 17, 1961 | March 20, 1969 | John F. Kennedy | |
| Walter Annenberg | | March 14, 1969 | April 29, 1969 | October 30, 1974 | Richard Nixon | |
| Elliot Richardson | | February 20, 1975 | March 21, 1975 | January 16, 1976 | Gerald Ford | |
| Anne Armstrong | | January 29, 1976 | March 17, 1976 | March 3, 1977 | Gerald Ford | |
| Kingman Brewster, Jr. | | April 29, 1977 | June 3, 1977 | February 23, 1981 | Jimmy Carter | |
| John J. Louis, Jr. | | May 7, 1981 | May 27, 1981 | November 7, 1983 | Ronald Reagan | |
| Charles H. Price II | | November 11, 1983 | December 20, 1983 | February 28, 1989 | Ronald Reagan | |
| Henry E. Catto, Jr. | | April 14, 1989 | May 17, 1989 | March 13, 1991 | George H. W. Bush | |
| Raymond G. H. Seitz | | April 25, 1991 | June 25, 1991 | May 10, 1994 | George H. W. Bush | |
| William J. Crowe, Jr. | | May 13, 1994 | June 2, 1994 | September 20, 1997 | Bill Clinton | |
| Philip Lader | | August 1, 1997 | September 22, 1997 | February 28, 2001 | Bill Clinton | |
| William S. Farish III | | July 12, 2001 | August 1, 2001 | June 11, 2004 | George W. Bush | |
| Robert H. Tuttle | | July 9, 2005 | October 19, 2005 | February 6, 2009 | George W. Bush | |
| Louis Susman | | July 13, 2009 | October 13, 2009 | April 3, 2013 | Barack Obama | |
| Matthew Barzun | | August 6, 2013 | December 4, 2013 | January 18, 2017 | Barack Obama | |
| Lewis Lukens | | January 18, 2017 | January 18, 2017 | November 8, 2017 | Donald Trump | Chargé d'Affaires |
| Woody Johnson | | August 3, 2017 | November 8, 2017 | January 20, 2021 | Donald Trump | |
| Yael Lempert | | January 20, 2021 | January 20, 2021 | August 1, 2021 | Joe Biden | Chargé d'Affaires |
| Philip Reeker | | July 15, 2021 | August 1, 2021 | July 19, 2022 | Joe Biden | Chargé d'Affaires |
| Jane D. Hartley | | May 25, 2022 | July 19, 2022 | January 20, 2025 | Joe Biden | |
| Matthew Palmer | [[File:|50px]] | January 20, 2025 | | | Donald Trump | Chargé d'Affaires |