Through a series of public lectures and programs, the John Marshall International Center for the Study of Statesmanship brings in some of the world's leading voices in the areas of constitutionalism, political economy, politics and ethical reasoning. The list of distinguished visitors includes top diplomats, Pulitzer Prize-winning authors, and renowned historians, ethicists and political scientists.
- John Bolton, former ambassador to the United Nations, undersecretary of state for arms control and international security, assistant secretary of state for international organization affairs, assistant United States attorney general for legislative affairs and general counsel for the United States Agency for International Development
- Václav Klaus, former president of the Czech Republic
- Roger Kimball, editor and publisher of The New Criterion and president and publisher of Encounter Books
- Glyn Davies, principal deputy assistant secretary of state in the Bureau of East Asian and Pacific Affairs. Davies is a career diplomat who has served at American embassies and consulates in London, Paris, Kinshasa and Melbourne, as deputy spokesman of the Department of State and as director of the government's 24-hour Foreign Affairs Crisis Management Office.
- Harvey Mansfield, Jr., a political philosopher who teaches at Harvard University. His influential book "Taming the Prince: The Ambivalence of Modern Executive Power" was the subject of a 2009 conference sponsored by the Marshall Center.
- Gordon Wood, Pulitzer Prize-winning author of "The Radicalism of the American Revolution" and winner of the Bancroft Prize for his book "The Creation of the American Republic, 1776-1787." He writes frequently for The New York Review of Books and The New Republic.
- Sir David Cannadine, a renowned British historian who has been called "one of the most thoughtful, original, incisive, and readable historians of our time."
- William Galston, a former policy adviser to President Clinton and other presidential candidates. Now with the Brooking Instiution. He is an expert on domestic policy, political campaigns and elections.
- Terry Eastland, a publisher of The Weekly Standard and a contributor to publications such as The Wall Street Journal and The Dallas Morning News.
The Marshall Center is advised by an international board of distinguished scholars.