List of ambassadors of the United States to the United Kingdom
| Ambassador of the United States of America to the Court of St James's | |
|---|---|
Seal of the United States Department of State | |
since May 21, 2025 | |
| U.S. Department of State | |
| Style | His or Her Excellency (formal) Mr. or Madam Ambassador (informal) |
| Reports to | United States Secretary of State |
| Residence | Winfield House |
| Seat | Embassy of the United States, London, United Kingdom |
| Appointer | President of the United States with the advice and consent of the Senate |
| Term length | At the pleasure of the president |
| Inaugural holder | John Adams (as Minister Plenipotentiary to the Court of St. James's) |
| Formation | 1785 |
| Website | uk |
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.