Chiefs of Mission for Paraguay
- Charles Ames Washburn (1861-)
- Charles Ames Washburn (1863-1868)
- Martin Thomas McMahon (1868-1869)
- John Leavitt Stevens (1870-1873)
- John Curtis Caldwell (1874-)
- John Curtis Caldwell (1876-1882)
- Jeremiah McLain Rusk (1881-)
- William Williams (1882-1885)
- John Edmund Bacon (1885-)
- John Edmund Bacon (1888-1888)
- George Earl Maney (1889-)
- George Earl Maney (1890-1894)
- Granville Stuart (1894-1898)
- William Rufus Finch (1897-1905)
- Edward Charles O'Brien (1905-1909)
- Edwin Vernon Morgan (1909-1911)
- Nicolay Andrew Grevstad (1911-1914)
- Daniel Francis Mooney (1914-1921)
- William Joseph O'Toole (1922-1924)
- George Lewis Kreeck (1925-1930)
- George Post Wheeler (1929-1933)
- Meredith Nicholson (1933-1935)
- Findley Burtch Howard (1935-1941)
- Wesley Frost (1941-)
- Wesley Frost (1942-1944)
- Willard Leon Beaulac (1944-1947)
- William Fletcher Warren (1947-1950)
- Howard Hobson Tewksbury (1950-1952)
- George Price Shaw (1952-1953)
- Arthur Ainslie Ageton (1954-1957)
- Walter Christian Ploeser (1957-1959)
- Harry Farnum Stimpson (1959-1961)
- William Pennell Snow (1961-1967)
- Benigno Carlos Hernandez (1967-1969)
- John Raymond Ylitalo (1969-1972)
- George Walter Landau (1972-1977)
- Robert Edward White (1977-1980)
- Lyle Francis Lane (1980-1982)
- Arthur H. Davis (1982-1985)
- Clyde D. Taylor (1985-1988)
- Timothy Lathrop Towell (1988-1991)
- Jon David Glassman (1991-1994)
- Robert Edward Service (1994-1997)
- Maura Ann Harty (1997-1999)
- David N. Greenlee (2000-2003)
- John F. Keane (2002-2005)
- James Caldwell Cason (2005-2008)
- Liliana Ayalde (2008-2011)
- James H. Thessin (2011-)
- Lewis Wallace (-)
- Hampton Robb (-)