John Caspar Dreier | |
|---|---|
| 3rd United States Ambassador to the Organization of American States | |
| In office January 2, 1951 – November 12, 1960 | |
| President | Harry S. Truman Dwight Eisenhower |
| Preceded by | Paul C. Daniels |
| Succeeded by | deLesseps S. Morrison |
| Personal details | |
| Born | December 27, 1906 Brooklyn, New York City, U.S. |
| Died | March 10, 1994 (aged 87) Cambridge, Massachusetts, U.S. |
| Spouse | Louisa R. Dreier |
| Children | 3 |
| Alma mater | Harvard College |
| Occupation | Teacher, diplomat |
John Caspar Dreier (December 27, 1906 – March 10, 1994) was an American diplomat and teacher.
He served as United States Ambassador to the Organization of American States (OAS) between 1951 and 1960. He then taught for a number of years at the School of Advanced International Studies (part of Johns Hopkins University in Washington, D.C.).