| Year | Speaker |
| 2006 | Lakhdar Brahimi Former Special Advisor to the Secretary General of the United Nations and Algeria’s former Minister of Foreign Affairs |
| 2005 | Dennis Ross Former U.S. Ambassador, Special Middle East Coordinator, currently Counselor and Zeigler Distinguished Fellow of the Washington Institute for Near East Policy |
| 2004 | Donald Gregg Ambassador to Korea (1989-1993) and Chairman of the Korea Society |
| 2003 | Mary Robinson UN High Commisioner for Human Rights (1997-2002) |
| 2002 | Carol Bellamy Executive Director of the United Nations Children’s Defense Fund |
| 2001 | Michel Camdessus Former Director and Chair of the Executive Board of the International Monetary Fund |
| 2000 | Archbishop Desmond Tutu of South Africa |
| 1997 | Haris Silajdzic Co-chair, Council of Ministers of Bosnia and Herzegovina |
| 1996 | George J. Mitchell Former majority leader of the U.S. Senate |
| 1996 | Jessica Tuchman Mathews Senior Fellow, Council of Foreign Relations |
| 1995 | Hanan Ashwari Founder, Palestinian Independent Commission for Citizen’s Rights |
| 1994 | The Right Honorable Michael Manley Former prime minister of Jamaica |
| 1994 | Sir John Burgh KCMG, President, Trinity College, Oxford |
| 1993 | Luigi Einaudi U.S. Ambassador to the Organization of American States |
| 1992 | Olusegun Obasanjo Former head of state of Nigeria |
| 1992 | Barber Conable, Jr. Former President of the World Bank |
| 1991 | The Dalai Lama of Tibet |
| 1990 | Mark Palmer Former U.S. Ambassador to Hungary |
| 1990 | Frank Press President of National Academy of Sciences |
| 1989 | Carlos Andes Perez President of Venezuela |
| 1988 | Bruce Laingen Former U.S. Chief of Mission in Iran |
| 1988 | Panel Discussion - Health in the world, the United States, and New York State.
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| 1987 | Pierre Salinger ABC News international correspondent |
| 1986 | Charles Percy Former U.S. Senator |
| 1985 | Arkady Shevchenko Former USSR Ambassador to the United Nations |