The following is a list of people who have served as United States Ambassador to the Organization of American States, or the full title, "United States Permanent Representative to the Organization of American States", with the rank and status of Ambassador Extraordinary and Plenipotentiary.

# Name Years served OAS secretary(ies) general U.S. president(s)1 William Dawson 1948 Alberto Lleras Camargo Harry S. Truman2 Paul C. Daniels 1948–19513 John C. Dreier 1951–1960Carlos DávilaDwight EisenhowerJosé Antonio Mora4 deLesseps S. Morrison 1961–1963 John F. Kennedy5 Ellsworth Bunker 1964–1966 Lyndon Johnson6 Sol M. Linowitz 1966–1969Galo Plaza7 Joseph J. Jova 1969–1974 Richard Nixon8 William S. Mailliard 1974–1977Alejandro OrfilaGerald Ford9 Gale W. McGee 1977–1981 Jimmy CarterRonald Reagan10 J. William Middendorf 1981–1985João Clemente Baena Soares11 Richard Thomas McCormack 1985–198912 Luigi R. Einaudi 1989–1993 George H. W. BushBill Clinton13 Harriet C. Babbitt 1993–1997César Gaviria14 Victor Marrero 1998-199915Luis J. Lauredo 2000–200116 Roger Francisco Noriega 2001–2003 George W. Bush17 John F. Maisto 2003–2007Miguel Ángel RodríguezLuigi R. Einaudi (acting)José Miguel Insulza18 Hector Morales 2008–200919 Carmen Lomellin2009-2016 Barack ObamaLuis Almagro20 Carlos Trujillo 2018–2021 Donald Trump21 Francisco O. Mora 2023–2025 Joe Biden22 Leandro Rizzuto Jr. 2025– Albert Ramdin Donald Trump

References

External links United States Mission to the Organization of American States