1900–1965, American statesman.
He entered government service as special counsel to the Agricultural Adjustment Administration (1933–34) and later served as assistant general counsel to the Federal Alcohol Bureau (1934) and as an assistant to the U.S. Secretary of the Navy (1941–44). In 1945 he became special assistant to Secretary of State Stettinius and attended the San Francisco Conference that founded the United Nations.
In 1961, President Kennedy appointed him U.S. Ambassador to the United Nations, with cabinet rank. He held this position until his death.

Stevenson won enormous respect and admiration as an eloquent spokesman for liberal reform and for internationalism.