United States Ambassador to the Organization of American States


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.

NameYears servedOAS Secretary GeneralU.S. President
William Dawson1948Alberto Lleras CamargoHarry S. Truman
Paul C. Daniels1948–1951Alberto Lleras CamargoHarry S. Truman
John C. Dreier1951–1960Alberto Lleras Camargo, Carlos Dávila, José Antonio MoraHarry S. Truman, Dwight Eisenhower
deLesseps S. Morrison1961–1963José Antonio MoraJohn Kennedy
Ellsworth Bunker1964–1966José Antonio MoraLyndon Johnson
Sol M. Linowitz1966–1969José Antonio Mora, Galo PlazaLyndon Johnson
Joseph J. Jova1969–1974Galo PlazaRichard Nixon
William S. Mailliard1974–1977Galo Plaza, Alejandro OrfilaRichard Nixon, Gerald Ford
Gale W. McGee1977–1981Alejandro OrfilaJimmy Carter, Ronald Reagan
J. William Middendorf1981–1985Alejandro Orfila, João Clemente Baena SoaresRonald Reagan
Richard Thomas McCormack1985–1989João Clemente Baena SoaresRonald Reagan
Luigi R. Einaudi1989–1993João Clemente Baena SoaresGeorge H. W. Bush, Bill Clinton
Harriet C. Babbitt1993–1997João Clemente Baena Soares, César GaviriaBill Clinton
Victor Marrero1998-1999César GaviriaBill Clinton
Luis J. Lauredo2000–2001César GaviriaBill Clinton
Roger Francisco Noriega2001–2003César GaviriaGeorge W. Bush
John F. Maisto2003–2007César Gaviria, Miguel Ángel Rodríguez, Luigi R. Einaudi, José Miguel InsulzaGeorge W. Bush
Hector Morales2008–2009José Miguel InsulzaGeorge W. Bush
Carmen Lomellin2009–2016José Miguel Insulza, Luis AlmagroBarack Obama
Carlos Trujillo2018 – presentLuis AlmagroDonald Trump