Harlan Cleveland (January 19, 1918 – May 30, 2008) was an American diplomat, educator, and author. He served as Lyndon Johnson's U.S. Ambassador to NATO, 1965–1969, and earlier as U.S. Assistant Secretary of State for International Organization Affairs, 1961–1965. He was President of the University of Hawaii 1969–1974, and the World Academy of Art and Science in the 1990s and founding dean of the University of Minnesota's Hubert H. Humphrey Institute of Public Affairs. Cleveland also served as Dean of the Maxwell School of Citizenship and Public Affairs from 1956 to 1961.
He was born in New York City to Stanley Cleveland and Marian Van Buren. His siblings were Harold van Buren Cleveland, an economist, Anne Cleveland White, an artist, and Stanley Cleveland, a diplomat. He attended Phillips Andover Academy and graduated from Princeton University in 1938. He was a Rhodes Scholar at Oxford University in the late 1930s. He was an early advocate and practitioner of online education, teaching courses for the Western Behavioral Sciences Institute (WBSI) and Connected Education in the 1980s and early 1990s.
He authored twelve books, among his best-known are The Knowledge Executive (1985) and Nobody in Charge: Essays on the Future of Leadership (2002). He also published hundreds of journal and magazine articles. His final published writing was the opening chapter for "Creating a Learning Culture: Strategy, Technology, and Practice" (2004) entitled, "Leading and learning with nobody in charge." 
He was awarded 22 honorary degrees, the U.S. Presidential Medal of Freedom, Princeton University's Woodrow Wilson Award, the Peace Corps' Leader for Peace Award, and the American Whig-Cliosophic Society's James Madison Award for Distinguished Public Service. He was the co-winner (with Bertrand de Jouvenel) of the 1981 Prix de Talloires, an international award for "accomplished generalists". He was a trustee of the Chaordic Commons.
- Obituary in The Washington Post
- Obituary in The Star Tribune
- University of Hawaiʻi press release
- In Memory of Harlan Cleveland by Patrick Mendis in The Minnesota Post
- Club of Rome
- Cleveland on Leadership, an article from THE FUTURIST magazine
- International Leadership Forum
Francis O. Wilcox
|Assistant Secretary of State for International Organization Affairs
February 20, 1961 – September 18, 1965
Joseph J. Sisco