Agrément /designated Diplomatic accreditation Ambassador Thai name Observations List of prime ministers of Thailand List of presidents of the United States Term end November 1, 1893 Phra Suriya Nuvatr พระสุริยานุรัตน์ Chargé d'affaires After the Paknam incident he was sent from London to Washington, D.C. to search for Arbitration in the Franco-Siamese crisis , Listed as SIAM, [ 2] Chulalongkorn Grover Cleveland April 1, 1894 Legation replaced Chulalongkorn Grover Cleveland June 1, 1894 June 2, 1894 Marquis de Maha Yotha Envoy Extraordinary and Minister Plenipotentiary Chulalongkorn Grover Cleveland August 1, 1895 Legation replaced Chulalongkorn Grover Cleveland December 1, 1898 November 12, 1898 Visuddha Suriyasakti In 1903 he was Thai Ambassador to the United Kingdom , 1903: M. Phya Visuddha Suriyasakti, Son Envoyé extraordinaire et Ministre plénipotentiaire à la Haye et à Londres. Phya means Marquis Chulalongkorn William McKinley December 1, 1899 April 16, 1900 Phya Prasiddhi with residence in London. Thai Ambassador to the United Kingdom Chulalongkorn William McKinley December 13, 1901 Akharaj Varadhara Phya =Marquis de Chulalongkorn Theodore Roosevelt May 22, 1912 Prince Traidos Prabandh Vajiravudh William Howard Taft December 8, 1913 Phya Prabha Karavongse [ 3] Vajiravudh Woodrow Wilson May 26, 1921 May 26, 1921 Sanpakitch Preencha [ es ] พระยาสรรพกิจปรีชา Chargé d'affaires [ 4] Vajiravudh Warren G. Harding April 27, 1923 Phya Buri Navarasth พญาบุรีนวรัฐ (Died February 7, 1926) Vajiravudh Calvin Coolidge February 8, 1926 Pra Sundara Vachana Chargé d'affaires Prajadhipok Calvin Coolidge October 15, 1926 Phya Vijitavongs พลโทพญาวิจัชวงศ์ Lt. Gen. Prajadhipok Calvin Coolidge May 29, 1929 Prince Amoradat Kridakara พลเอกเจ้าอาวาสรามาธิบดี Maj. Gen. Prajadhipok Herbert C. Hoover January 5, 1932 Phya Subarn Sompati Phraya Manopakorn Nititada Herbert C. Hoover April 11, 1933 Prince Pridi Debyabongs Devakula พลตรี หม่อมเจ้าปรีดิเทพย์พงศ์ เทวกุล From 1930 to 1931 he was Thai Ambassador to Germany Phraya Phahon Phonphayuhasena Franklin D. Roosevelt August 15, 1935 August 21, 1935 Phya Abhibal Rajamaitri (* March 7, 1885 in Bangkok ) Son of Chao Phya Surawongs and Yai Bunnag. 1901–1904 studied at Malvern College, England. 1909 Bachelor of Laws , King's College, Cambridge , England. 1910 Barrister-at-law, Inner Temple, London, England. 1915 Teru. Barrister-at-law, Siam. From 1930 to 1932 he was Thai Ambassador to Italy , Envoy Extraordinary anu Minister Plenipotentiary of Siam to Rome. From 1 September 1933 – 22 September 1934 he was State councillor of Siam for foreign affairs, while Tom Bunnag was Foreign minister. In 1935 he became Envoy Extraordinary anu Minister Plenipotentiary of Siam to Washington, D.C. From 1933 to 1935 he was Member Assembly of People's Representatives. From July 8, 1948, to May 15, 1958, he was Thai Ambassador to China .[ citation needed ] Phraya Phahon Phonphayuhasena Franklin D. Roosevelt June 24, 1940 August 1, 1939 Listed as THAILAND Phibul Songkhram Franklin D. Roosevelt June 18, 1940 June 24, 1940 Seni Pramoj th:หม่อมราชวงศ์เสนีย์ ปราโมช October 1945Listed as SIAM Phibul Songkhram Franklin D. Roosevelt January 16, 1949 Thanat Khoman Chargé d'affaires [ 5] Phibul Songkhram Harry S. Truman March 26, 1947 Legation raised to Embassy, Effective date of elevation of Mission was date of President's approval of agreement. Kuang Abhayawongse Harry S. Truman April 14, 1947 April 18, 1947 Wan Waithayakon th:พระเจ้าวรวงศ์เธอ พระองค์เจ้าวรรณไวทยากร กรมหมื่นนราธิปพงศ์ประพันธ์ Kuang Abhayawongse Harry S. Truman November 8, 1947 relations served after the Siamese coup d'état of 1947 [ 6] Kuang Abhayawongse Harry S. Truman March 6, 1948 June 5, 1952 June 12, 1952 Pote Sarasin th:พจน์ สารสิน Phibul Songkhram Harry S. Truman September 10, 1947 October 14, 1957 Thanat Khoman th:ถนัด คอมันตร์ Kuang Abhayawongse Harry S. Truman May 12, 1959 June 1, 1959 Visutr Arthayukti September 18, 1958 nine days after a riot in Bangkok concerning Preah Vihear , Thailand's deputy foreign minister Visutr Arthayukti told U. Alexis Johnson , the US ambassador in Bangkok, that the Thai government had word from the South Vietnamese that a "coup to overthrow Norodom Sihanouk would shortly take place.December 19, 1963 he was Thai Ambassador to Sweden . [ 7] Sarit Dhanarajata Dwight D. Eisenhower October 29, 1963 December 19, 1963 Sukich Nimmanheminda Thanom Kittikachorn Lyndon B. Johnson December 20, 1967 January 19, 1968 Bunchana Atthakor Thanom Kittikachorn Lyndon B. Johnson September 16, 1969 October 10, 1969 Sunthorn Hongladarom [ de ] th:สุนทร หงส์ลดารมภ์ Thanom Kittikachorn Richard Nixon September 13, 1972 October 2, 1972 Anand Panyarachun th:อานันท์ ปันยารชุน Thanom Kittikachorn Richard Nixon January 19, 1976 February 9, 1976 Upadit Pachariyangkun [ fr ] th:อุปดิศร์ ปาจรียางกูร Seni Pramoj Gerald Ford October 22, 1976 Sukho Suwansiri Chargé d'affaires Seni Pramoj Gerald Ford April 26, 1977 May 13, 1977 Arun Panupong อรุณ ภาณุพงศ์ Kriangsak Chomanan Jimmy Carter January 17, 1978 Sukho Suwansiri Chargé d'affaires Kriangsak Chomanan Jimmy Carter July 24, 1978 August 2, 1978 Klos Visessurakarn Kriangsak Chomanan Jimmy Carter June 26, 1980 August 22, 1980 Prok Amaranand Prem Tinsulanonda Jimmy Carter November 9, 1982 November 22, 1982 Kasem S. Kasemsri [ de ] th:หม่อมราชวงศ์เกษมสโมสร เกษมศรี Kasemsamosorn Kasemsri Prem Tinsulanonda Ronald Reagan September 30, 1985 November 24, 1985 Arsa Sarasin th:อาสา สารสิน Prem Tinsulanonda Ronald Reagan April 13, 1988 July 5, 1988 Vitthya Vejjajiva Chatichai Choonhavan Ronald Reagan May 23, 1991 June 11, 1991 Birabhongse Kasemsri th:หม่อมหลวงพีระพงศ์ เกษมศรี Anand Panyarachun George H. W. Bush June 23, 1994 Manaspas Xuto มนัสพาสน์ ชูโต Suchinda Kraprayoon Bill Clinton January 25, 1996 February 6, 1996 Nitya Pibulsonggram th:นิตย์ พิบูลสงคราม Chavalit Yongchaiyudh Bill Clinton April 7, 2000 June 14, 2000 Tej Bunnag th:เตซ บุนนาค Chuan Leekpai Bill Clinton November 27, 2001 December 12, 2001 Sakthip Krairiksh ศักดิ์ทิพย์ ไกรฤกษ์ Thaksin Shinawatra George W. Bush July 12, 2004 July 15, 2004 Kasit Piromya th:กษิต ภิรมย์ Thaksin Shinawatra George W. Bush February 10, 2006 March 13, 2006 Virasakdi Futrakul th:วีระศักดิ์ ฟูตระกูล Surayud Chulanont George W. Bush April 26, 2007 July 25, 2007 Krit Garnjana Goonchorn th:กฤษณ์ กาญจนกุญชร Surayud Chulanont George W. Bush July 17, 2009 July 20, 2009 Don Pramudwinai th:ดอน ปรมัตถ์วินัย Samak Sundaravej Barack Obama December 6, 2010 December 7, 2010 Kittiphong Na Ranong th:กิตติพงษ์ ณ ระนอง Samak Sundaravej Barack Obama April 18, 2012 May 2, 2012 Chaiyong Satjipanon th:ชัยยงค์ สัจจิพานนท์ Yingluck Shinawatra Barack Obama October 25, 2013 December 3, 2013 Vijavat Isarabhakdi th:วิชาวัฒน์ อิศรภักดี Yingluck Shinawatra Barack Obama May 7, 2014 February 18, 2015 February 23, 2015 Pisan Manawapat th:พิศาล มาณวพัฒน์ Prayut Chan-o-cha Barack Obama August 22, 2023 June 2018 Virachai Plasai th:วีรชัย พลาศรัย Died March 16, 2019 Prayut Chan-o-cha Donald Trump March 16, 2019 August 2019 January 6, 2021 Thani Thongphakdi ธานี ทองภักดี Prayut Chan-o-cha Donald Trump September 2020 2021 Manasvi Srisodapol มนัสวี ศรีโสดาพล Prayut Chan-o-cha Joe Biden September 2022 November 2022 December 12, 2022 Tanee Sangrat ธานี แสงรัตน์ Prayut Chan-o-cha Srettha Tavisin
Joe Biden May 2024 June 2024 June 17, 2024 Suriya Chindawongse สุริยา จินดาวงษ์ Srettha Tavisin Paetongtarn Shinawatra
Joe Biden