William Ludwig Jacobsen Jr. (born December 2, 1936) was the American Ambassador to Guinea-Bissau from November 13, 1989, to August 25, 1992.[1] He also served as director of the U.S Liaison Office for Namibia from 1984 to 1985. He received his undergraduate education at the University of Washington (1958) followed by a Master of Arts from Harvard University.[2]