Chiefs of Mission for Brazil
- Condy Raguet (1825-1827)
- William Tudor (1827-1830)
- Ethan Allen Brown (1830-1834)
- William Hunter (1834-)
- William Hunter (1841-1843)
- George H. Proffit (1843-1844)
- Henry Alexander Wise (1844-1847)
- David Tod (1847-1851)
- Robert Cumming Schenck (1851-1853)
- William Trousdale (1853-1857)
- Richard Kidder Meade (1857-1861)
- James Watson Webb (1861-1869)
- Henry Taylor Blow (1869-1870)
- James Rudolph Partridge (1871-1877)
- Henry Washington Hilliard (1877-1881)
- Thomas Andrew Osborn (1881-1885)
- Thomas Jordan Jarvis (1885-1888)
- Robert Adams (1889-1890)
- Edwin Hurd Conger (1890-1893)
- Thomas Larkin Thompson (1893-1897)
- Edwin Hurd Conger (1897-1898)
- Charles Page Bryan (1898-1902)
- David Eugene Thompson (1902-)
- David Eugene Thompson (1902-)
- David Eugene Thompson (1905-1905)
- Lloyd Carpenter Griscom (1906-1907)
- Irving Bedell Dudley (1906-1911)
- Edwin Vernon Morgan (1912-1933)
- Hugh Simons Gibson (1933-1936)
- Jefferson Caffery (1937-1944)
- Adolf Augustus Berle (1945-1946)
- William Douglas Pawley (1946-1948)
- Herschel Vespasian Johnson (1948-1953)
- James Scott Kemper (1953-1955)
- James Clement Dunn (1955-1956)
- Ellis Ormsbee Briggs (1956-1959)
- Ann Clare (Boothe) Luce (1959-)
- John Moors Cabot (1959-1961)
- Abraham Lincoln Gordon (1961-1966)
- John Wills Tuthill (1966-1969)
- Charles Burke Elbrick (1969-1970)
- William Manning Rountree (1970-1973)
- John Hugh Crimmins (1973-1978)
- Robert Marion Sayre (1978-1981)
- Langhorne A. Motley (1981-1983)
- Diego Cortes Asencio (1983-1986)
- Richard Huntington Melton (1989-1993)
- Melvyn Levitsky (1994-1998)
- Anthony Stephen Harrington (1999-2001)
- Donna Jean Hrinak (2002-2004)
- John J. Danilovich (2004-2005)
- Clifford M. Sobel (2006-2009)
- Thomas Alfred Shannon (2009-)
- Alexander Fletcher Watson (-)
- Cristobal Roberto Orozco (-)
- Philip T. Chicola (-)
- William Anderson Pile (-)
- John Brian Atwood (-)