Willard Long Thorp (1899–1992) was an economist and academic who served three US Presidents, Franklin D. Roosevelt, Harry S. Truman and Dwight D. Eisenhower as an advisor in both domestic and foreign affairs. He helped draft the Marshall Plan and was also prominent in business and education.
He was Assistant Secretary of State under Truman for Economic Affairs 1946–1952; a member of the U.S. delegation serving as special adviser on economic matters at the Paris Peace Conference of 1946; special adviser on economic matters at the New York meeting of the Council of Foreign Ministers in 1946; and American representative to the United Nations General Assembly, 1947–48.
He died on 10 May 1992 in Pelham, Massachusetts.
- Lambert, Bruce (May 11, 1992), "Willard L. Thorp, 92, Economist Who Helped Draft Marshall Plan", New York Times.
- View/Search Fellows of the ASA, accessed 2016-07-23.
- McKinzie, Richard D.; Wilson, Theodore A. (July 10, 1971), Oral History Interview with Willard L. Thorp, Harry S. Truman Library and Museum, retrieved 2015-03-02.