William Lacy Swing (born September 11, 1934 in Lexington, North Carolina) is a diplomat and former United States Ambassador to Republic of the Congo (1979-81), Liberia (1981-85), South Africa (1989-92), Nigeria (1992-93), Haiti (1993-98), and Democratic Republic of the Congo (1998-2001).
He has served as United Nations Special Representative of the Secretary-General to Western Sahara (2001-03) and then Democratic Republic of the Congo (starting July 2003).[1] In June, 2008 he was elected Director General of the International Organization for Migration.[2]
He is a member of the American Academy of Diplomacy.