Leonard S. Unger
| Leonard S. Unger | |
|---|---|
| 10th United States Ambassador to the Republic of China | |
| In office May 25, 1974 – January 19, 1979 | |
| President | Richard M. Nixon Gerald Ford Jimmy Carter | 
| Preceded by | Walter P. McConaughy | 
| Succeeded by | William Andreas Brown (Chief of mission) | 
| 8th United States Ambassador to Thailand | |
| In office October 4, 1967 – November 19, 1973 | |
| President | Lyndon B. Johnson Richard M. Nixon | 
| Preceded by | Graham A. Martin | 
| Succeeded by | William R. Kintner | 
| 6th United States Ambassador to Laos | |
| In office July 25, 1962 – December 1, 1964 | |
| President | John F. Kennedy Lyndon B. Johnson | 
| Preceded by | Winthrop G. Brown | 
| Succeeded by | William H. Sullivan | 
| Personal details | |
| Born | Leonard Seidman Unger December 17, 1917 San Diego, California | 
| Died | June 3, 2010 (aged 92) Sebastopol, California | 
| Occupation | Diplomat | 
Leonard Seidman Unger (December 17, 1917 – June 3, 2010) was a diplomat and United States Ambassador to Laos (1962–64), Thailand (1967–73), and was the last US ambassador to the Republic of China (Taiwan) (1974–79).