William Davis Clarke

William D. Clarke, Sr.
12th United States Ambassador to Eritrea
In office
August 20, 1998  August 12, 2001
PresidentBill Clinton
George W. Bush
Preceded byJohn F. Hicks
Succeeded byDonald J. McConnell
Personal details
Born1941 (age 8384)
Alma materHoward University
Industrial College of the Armed Forces
ProfessionDiplomat

William D. Clarke, Sr. (born 1941) is an American diplomat. Clarke served as the United States Ambassador to Eritrea from 1998 to 2001. He previously served over 30 years as a diplomat and member of the Diplomatic Security Service, including becoming the Deputy Assistant Secretary for Countermeasures and Information Security before his ambassadorship.

On October 3, 2022, the State Department announced a fellowship enabling a pipeline to become Diplomatic Security Service Special Agent named in Clarke's honor.