| Name | Title | Appointed | Presented credentials | Terminated mission | Notes |
|---|
| Olcott Deming – Career FSO | Ambassador Extraordinary and Plenipotentiary | January 7, 1963 | January 14, 1963 | June 26, 1966 |
| Henry Endicott Stebbins – Career FSO | June 27, 1966 | July 22, 1966 | September 2, 1969 |
| Clarence Clyde Ferguson, Jr.
– Political appointee | March 17, 1970 | June 30, 1970 | July 19, 1972 |
| Thomas Patrick Melady – Political appointee | June 12, 1972 | July 30, 1972 | February 9, 1973 |
| David Crane Halsted – Career FSO | Chargé d'Affaires ad interim | June 18, 1979 | N/A | 1980 |
| Gordon Robert Beyer[1] – Career FSO | Ambassador Extraordinary and Plenipotentiary | May 23, 1980 | June 13, 1980 | May 31, 1983 |
| Allen Clayton Davis[2] – Career FSO | April 5, 1983 | July 1, 1983 | August 14, 1985 |
| Robert Gordon Houdek – Career FSO | October 28, 1985 | November 22, 1985 | August 17, 1988 |