Stephen Warren Bosworth (born 4 December 1939) is Dean of The Fletcher School at Tufts University and serves as U.S. special representative for North Korea policy. He has served three times as a U.S. Ambassador, to South Korea (1997–2001), to the Philippines (1984–1987), and to Tunisia (1979–1981). In 1987, he was recipient of American Academy of Diplomacy's Diplomat of the Year Award.
In February 2009 U.S. Secretary of State Hillary Clinton named Bosworth Special Representative for North Korea policy.
Before his appointment as Ambassador to South Korea he was the Executive Director of the Korean Peninsula Energy Development Organization (1995–1997). Before coming to KEDO, he was president of the United States Japan Foundation.