| Diplomatic agrément | Diplomatic accreditation | ambassador | Observations | List of heads of state of Hungary | List of presidents of the United States | Term end |
|---|
| | Ferdinand von Wydenbruck | (1816–1878)[1] | Franz Joseph I of Austria | Andrew Johnson | |
| | | (1817–1890)[2] | Franz Joseph I of Austria | Ulysses S. Grant | |
| | | (1813–1903)[3] | Franz Joseph I of Austria | Ulysses S. Grant | |
| | Ladislaus von Hoyos-Sprinzenstein | (Born 25 August 1834 - Mauer bei Wien, Austria | Franz Joseph I of Austria | Rutherford B. Hayes | |
| | Ernst von Mayr | [4] | Franz Joseph I of Austria | James A. Garfield | |
| | Ignaz von Schäffer | 1856 envoy in London | Franz Joseph I of Austria | Grover Cleveland | |
| | Ernst Schmit von Tavera | Envoy Extraordinary and Minister Plenipotentiary (1839-1904)[5] | Franz Joseph I of Austria | Grover Cleveland | |
| | Alexander von Mezey Ezathmär | Counselor of Legation (NOT Chargé d'affaires)[6] | Franz Joseph I of Austria | Grover Cleveland | |
| | Ladislaus Hengelmüller von Hengervár | | Franz Joseph I of Austria | Grover Cleveland | |
| | | LEGATION RAISED TO EMBASSY | Franz Joseph I of Austria | Theodore Roosevelt | |
| | Ladislaus Hengelmüller von Hengervár | February 23, 1910 Dean of the Diplomatic corps | Franz Joseph I of Austria | Theodore Roosevelt | |
| | Konstantin Dumba | | Franz Joseph I of Austria | Woodrow Wilson | |
| | Baron Erich Zwiedinek von Südenhorst | Chargé d'affaires[7] | Franz Joseph I of Austria | Woodrow Wilson | |
| | Adam Tarnowski (senior) | (1866–1946) | Charles I of Austria | Woodrow Wilson | |
| | | EMBASSY REMOVED | Charles I of Austria | Woodrow Wilson | |
| | | Legation of Hungary opened | Miklós Horthy | Warren G. Harding | |
| | László Széchenyi | | Miklós Horthy | Warren G. Harding | |
| | 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 | |
| | Stephen de Rothkugel | Chargé d'affaires[9] | Miklós Horthy | Franklin D. Roosevelt | |
| | 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 | |
| | | ANNOUNCEMENT OF STATE OF WAR | Miklós Horthy | Franklin D. Roosevelt | |
| | | LEGATION RE-OPENED | Zoltán Tildy | Harry S. Truman | |
| | Aladár Szegedy-Maszák | (*1904 March 25, 1988)[10] | Zoltán Tildy | Harry S. Truman | |
| | Paul Marik | | Zoltán Tildy | Harry S. Truman | |
| | Rustem Vambery | | Zoltán Tildy | Harry S. Truman | |
| | Andrew Sik | [11] | Árpád Szakasits | Harry S. Truman | |
| | Andrew Sik | | Árpád Szakasits | Harry S. Truman | |
| | | Listed as Hungarian People's Republic | Árpád Szakasits | Harry S. Truman | |
| | 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 | |
| | Emil Weil | (1897-1954) | Sándor Rónai | Harry S. Truman | |
| | Péter Kós | Ambassador carried as absent, Chargé d'affaires | István Dobi | Dwight D. Eisenhower | |
| | Károly Szabó (Ambassador to the United States) | | István Dobi | Dwight D. Eisenhower | |
| | 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 | |
| | Tibor Zádor | Chargé d'affaires | István Dobi | Dwight D. Eisenhower | |
| | János Radványi | Chargé d'affaires | István Dobi | John F. Kennedy | |
| | | Legation raised to embassy | István Dobi | Lyndon B. Johnson | |
| | Sándor Józan | Chargé d'affaires | Pál Losonczi | Lyndon B. Johnson | |
| | János Nagy | | Pál Losonczi | Lyndon B. Johnson | |
| | Péter Fülöp (diplomat) | Chargé d'affaires | Pál Losonczi | Richard Nixon | |
| | Károly Szabó (Ambassador to the United States) | | Pál Losonczi | Richard Nixon | |
| | Károly Kovács | Chargé d'affaires | Pál Losonczi | Gerald Ford | |
| | Ferenc Esztergályos | | Pál Losonczi | Gerald Ford | |
| | János Petrán | | Pál Losonczi | Ronald Reagan | |
| | Vencel Házi | | Pál Losonczi | Ronald Reagan | |
| | Pál Tar | | Árpád Göncz | George H. W. Bush | |
| | | Name changed to Republic of Hungary | Mátyás Szűrös | George H. W. Bush | |
| | Péter Várkonyi | | Mátyás Szűrös | George H. W. Bush | |
| | Péter Zwack | | Árpád Göncz | George H. W. Bush | |
| | György Bánlaki | | Árpád Göncz | Bill Clinton | |
| | Géza Jeszenszky | | Árpád Göncz | Bill Clinton | |
| | András Simonyi | | Ferenc Mádl | George W. Bush | |
| | Ferenc Somogyi | | László Sólyom | George W. Bush | |
| | Béla Szombati | | László Sólyom | Barack Obama | |
| | György Szapáry | | Pál Schmitt | Barack Obama | |
| | Réka Szemerkényi | | János Áder | Barack Obama | |
| [14] | László Szabó | | János Áder | Donald Trump | |
| | Szabolcs Takács | | | | | |
