| Diplomatic agrément | Diplomatic accreditation | ambassador | Observations | List of heads of state of Hungary | List of Presidents of the United States | Term end | | 1865|01|25}} | Ferdinand von Wydenbruck | (1816–1878)[1] | Franz Joseph I of Austria | Andrew Johnson | 1867|08|11}} |
| 1868|07|03}} | Carl Ramon Soter von Lederer|de}} | (1817–1890)[2] | Franz Joseph I of Austria | Ulysses S. Grant | 1874|03|12}} |
| 1874|03|12}} | Wilhelm Schwarz-Senborn|de}} | (1813–1903)[3] | Franz Joseph I of Austria | Ulysses S. Grant | 1875|03|08}} |
| 1875|06|23}} | Ladislaus von Hoyos-Sprinzenstein | ( Born 25 August 1834 - Mauer bei Wien, Austria | Franz Joseph I of Austria | Rutherford B. Hayes | 1878|08|28}} |
| 1878|12|25}} | Ernst von Mayr | [4] | Franz Joseph I of Austria | James A. Garfield | 1881|10|30}} |
| 1881|10|30}} | Ignaz von Schäffer | 1856 envoy in London | Franz Joseph I of Austria | Grover Cleveland | 1886|10|09}} |
| 1987|04|05}} | Ernst Schmit von Tavera | Envoy Extraordinary and Minister Plenipotentiary (1839-1904)[5] | Franz Joseph I of Austria | Grover Cleveland |
| 1894|11|01}} | Alexander von Mezey Ezathmär | Counselor of Legation (NOT Chargé d'affaires)[6] | Franz Joseph I of Austria | Grover Cleveland |
| 1894|12|29}} | Ladislaus Hengelmüller von Hengervár | Franz Joseph I of Austria | Grover Cleveland |
| 1902|12|27}} | LEGATION RAISED TO EMBASSY | Franz Joseph I of Austria | Theodore Roosevelt |
| 1902|12|27}} | 1907|01|01}} | Ladislaus Hengelmüller von Hengervár | February 23, 1910 Dean of the Diplomatic corps | Franz Joseph I of Austria | Theodore Roosevelt |
| 1913|04|24}} | Konstantin Dumba | Franz Joseph I of Austria | Woodrow Wilson |
| 1915|10|06}} | Baron Erich Zwiedinek von Südenhorst | Chargé d'affaires[7] | Franz Joseph I of Austria | Woodrow Wilson |
| 1916|11|09}} | Adam Tarnowski (senior) | (1866–1946) | Charles I of Austria | Woodrow Wilson | 1917|04|08}} |
| 1917|05|01}} | EMBASSY REMOVED | Charles I of Austria | Woodrow Wilson |
| 1922|01|11}} | Legation of Hungary opened | Miklós Horthy | Warren G. Harding |
| 1922|01|11}} | László Széchenyi | Miklós Horthy | Warren G. Harding |
| 1933|12|28}} | John Pelenyi | Janos Pelenyi (1885-1974) Resignation: John Pelenyi, Hungarian Minister to Washington since 1933 and a career diplomat for 33 years, resigned his post and announced his intention to remain in this country indefinitely as a private citizen. He gave no reason.[8] | Miklós Horthy | Franklin D. Roosevelt |
| 1940|11|28}} | Stephen de Rothkugel | Chargé d'affaires[9] | Miklós Horthy | Franklin D. Roosevelt |
| 1941|03|19}} | 1941|04|03}} | George de Ghika | 1939: George De Ghika, who was Consul- General for Hungary in New York, has been appointed Hungarian Minister to Japan | Miklós Horthy | Franklin D. Roosevelt |
| 1941|12|13}} | ANNOUNCEMENT OF STATE OF WAR | Miklós Horthy | Franklin D. Roosevelt |
| 1946|01|10}} | LEGATION RE-OPENED | Zoltán Tildy | Harry S. Truman |
| 1946|01|10}} | 1946|01|18}} | Aladár Szegedy-Maszák | (*1904 March 25, 1988)[10] | Zoltán Tildy | Harry S. Truman |
| 1947|07|11}} | Paul Marik | Zoltán Tildy | Harry S. Truman |
| 1947|09|30}} | 1947|10|08}} | Rustem Vambery | Zoltán Tildy | Harry S. Truman |
| 1948|05|18}} | Andrew Sik | [11] | Árpád Szakasits | Harry S. Truman |
| 1948|07|20}} | 1948|08|04}} | Andrew Sik | Árpád Szakasits | Harry S. Truman |
| 1949|10|01}} | Listed as Hungarian People's Republic | Árpád Szakasits | Harry S. Truman |
| 1949|09|29}} | 1949|10|17}} | Imre Horváth | (1901-1958)- Born into a worker's family in 1901, Imre Horvath started out as a fitter's apprentice. Later he attended a poly- technical
- From 1951 to 1953 he was ambassador in London, On July 30, 1956, the Hungarian State Assembly elected Irnre Horvath Foreign Minister.[12]
| Árpád Szakasits | Harry S. Truman |
| 1951|08|02}} | 1951|08|07}} | Emil Weil | (1897-1954) | Sándor Rónai | Harry S. Truman |
| 1953|04|08}} | Péter Kós | Ambassador carried as absent, Chargé d'affaires | István Dobi | Dwight D. Eisenhower |
| 1953|08|28}} | 1953|09|26}} | Károly Szabó (Ambassador to the United States) | István Dobi | Dwight D. Eisenhower |
| 1956|06|27}} | 1956|07|17}} | Péter Kós- 1921: Educated, University of Budapest, Doctor of Chemistry.
- 1949: Ministry of Foreign Affairs, head of section
- 1956: Envoy to Indonesia.
- From 1969 to 1972 he was ambassador in New Delhi.[13]
| István Dobi | Dwight D. Eisenhower |
| 1957 | } | 1962 | } | Tibor Zádor | Chargé d'affaires | István Dobi | Dwight D. Eisenhower |
| 1962|02|14}} | János Radványi | Chargé d'affaires | István Dobi | John F. Kennedy |
| 1966|11|28}} | Legation raised to embassy | István Dobi | Lyndon B. Johnson |
| 1967 | } | Sándor Józan | Chargé d'affaires | Pál Losonczi | Lyndon B. Johnson |
| 1968|09|27}} | 1968|10|10}} | János Nagy | Pál Losonczi | Lyndon B. Johnson |
| 1971|06|09}} | Péter Fülöp (diplomat) | Chargé d'affaires | Pál Losonczi | Richard Nixon |
| 1971|09|03}} | 1971|09|21}} | Károly Szabó (Ambassador to the United States) | Pál Losonczi | Richard Nixon |
| 1975|04|28}} | Károly Kovács | Chargé d'affaires | Pál Losonczi | Gerald Ford |
| 1975|06|06}} | 1975|07|14}} | Ferenc Esztergályos | Pál Losonczi | Gerald Ford |
| 1981|09|28}} | 1981|10|26}} | János Petrán | Pál Losonczi | Ronald Reagan |
| 1983|09|16}} | 1983|10|13}} | Vencel Házi | Pál Losonczi | Ronald Reagan |
| 1991|10|18}} | 1991|11|25}} | Pál Tar | Árpád Göncz | George H. W. Bush |
| 1989|10|01}} | Name changed to Republic of Hungary | Mátyás Szűrös | George H. W. Bush |
| 1989|08|31}} | 1989|10|24}} | Péter Várkonyi | Mátyás Szűrös | George H. W. Bush |
| 1990|09|10}} | 1990|10|24}} | Péter Zwack | Árpád Göncz | George H. W. Bush |
| 1994|10|27}} | 1994|11|21}} | György Bánlaki | Árpád Göncz | Bill Clinton |
| 1998|09|24}} | 1998|10|27}} | Géza Jeszenszky | Árpád Göncz | Bill Clinton |
| 2002|09|10}} | 2002|09|25}} | András Simonyi | Ferenc Mádl | George W. Bush |
| 2007|08|29}} | 2007|09|18}} | Ferenc Somogyi | László Sólyom | George W. Bush |
| 2009|09|18}} | 2009|11|04}} | Béla Szombati | László Sólyom | Barack Obama |
| 2011|01|31}} | 2011|02|23}} | György Szapáry | Pál Schmitt | Barack Obama |
| 2015|02|18}} | 2015|02|23}} | Réka Szemerkényi | János Áder | Barack Obama |
| 2017|09|08}}[14] | László Szabó | János Áder | Donald Trump |
{{coord|38.905233|-77.045313|display=title|region:BO_type:landmark}}1. ^[https://books.google.de/books?id=_gd1Aw0ZlEwC&pg=PA273&dq=%22Ferdinand+von+Wydenbruck%22&hl=de&sa=X&ved=0ahUKEwik5MvFrpLSAhVGBiwKHZqJBcAQ6AEIHDAA Ferdinand von Wydenbruck]
2. ^[https://books.google.de/books?id=2fR4AAAAQBAJ&pg=PA68&dq=%22Karl+von+Lederer%22&hl=de&sa=X&ved=0ahUKEwit1-vqrpLSAhWC_iwKHVCrD5cQ6AEIITAB Carl Ramon Soter von Lederer]
3. ^[https://books.google.de/books?id=aeXvBgAAQBAJ&pg=PA69&dq=%22Wilhelm+von+Schwarz-Senborn%22&hl=de&sa=X&ved=0ahUKEwianeiHr5LSAhVGjywKHYD7D5YQ6AEIHDAA Wilhelm Schwarz-Senborn]
4. ^[https://books.google.de/books?id=-CRAy48uzvMC&pg=PA5&dq=%22Mayr,+welcher+am+2.+April+1879+%E2%80%9Ein+leidendem%22&hl=de&sa=X&redir_esc=y Ernst von Mayr]
5. ^ Ernst Schmit von Tavera
6. ^[https://books.google.de/books?id=51umwYxL5rYC&pg=PA29&dq=%22Alexander+von+Mezey,+der+aus+Washington+kam%22&hl=de&sa=X&redir_esc=y Alexander von Mezey Ezathmär]
7. ^[https://www.loc.gov/pictures/item/ggb2005020625/ Baron Erich Zwiedinek von Südenhorst]
8. ^John Pelenyi
9. ^Stephen de Rothkugel
10. ^[https://www.nytimes.com/1988/03/27/obituaries/aladar-szegedy-maszak-84-dies-former-hungarian-envoy-to-us.html Aladár Szegedy-Maszák]
11. ^[https://books.google.de/books?id=mEgEAAAAMBAJ&pg=PA38&dq=Hungarian+Minister+Andrew+Sik+Washington&hl=de&sa=X&redir_esc=y Andrew Sik]
12. ^[https://books.google.de/books?id=awZhacgRwNQC&pg=PA100&dq=%22Imre+Horvath+1901&hl=de&sa=X&redir_esc=y Imre Horváth]
13. ^[https://books.google.de/books?id=wWovAAAAMAAJ&q=K%C3%B3s,+P%C3%A9ter++born&dq=K%C3%B3s,+P%C3%A9ter++born&hl=de&sa=X&redir_esc=y Péter Kós]
14. ^{{cite web|url=https://www.whitehouse.gov/the-press-office/2017/09/08/list-foreign-ambassadors-who-participated-credentialing-ceremony|title=List of Foreign Ambassadors who Participated in Credentialing Ceremony|date=September 8, 2017|website=the White House|accessdate=2017-09-09}}
15. ^Chief of Protocol, [https://web.archive.org/web/20151015025246/http://www.state.gov/s/cpr/94042.htm] , Office of the historian, [https://history.state.gov/countries/hungary]