Harvard University boasts an extraordinary roster of distinguished alumni who achieved global fame across politics, literature, science, business, and public service. Among its most famous graduates are U.S. Presidents John F. Kennedy, Franklin D. Roosevelt, and Barack Obama; Nobel laureate and physicist J. Robert Oppenheimer; prominent author and activist W.E.B. Du Bois; billionaire investor Ken Griffin; and Supreme Court Justices John Roberts and Elena Kagan. These individuals reflect the profound historical footprint and elite global network anchored by the institution.