List of United States Ambassadors to Brazil List of United States Ambassadors to Brazil List of United States Ambassadors to Brazil

| Representative | Title | Presentation_of_Credentials | Termination_of_Mission | Appointed_by |
|---|---|---|---|---|
| Hugh S. Gibson | Ambassador Extraordinary and Plenipotentiary | August 8, 1933 | December 3, 1936 | Franklin D. Roosevelt |
| Jefferson Caffery | Ambassador Extraordinary and Plenipotentiary | August 17, 1937 | September 17, 1944 | Franklin D. Roosevelt |
| Adolf A. Berle, Jr. | Ambassador Extraordinary and Plenipotentiary | January 30, 1945 | February 27, 1946 | Franklin D. Roosevelt |
| William D. Pawley | Ambassador Extraordinary and Plenipotentiary | June 13, 1946 | March 26, 1948 | Harry S. Truman |
| Herschel Vespasian Johnson | Ambassador Extraordinary and Plenipotentiary | July 22, 1948 | May 27, 1953 | Harry S. Truman |
| James S. Kemper | Ambassador Extraordinary and Plenipotentiary | August 18, 1953 | January 26, 1955 | Dwight D. Eisenhower |
| James Clement Dunn | Ambassador Extraordinary and Plenipotentiary | March 11, 1955 | July 4, 1956 | Dwight D. Eisenhower |