David Dunlop Newsom (January 6, 1918 – March 30, 2008) was an American diplomat.

Newsom served as Acting Secretary of State in May 1980, and held the same position in January, 1981.

[3] Newsom was also the author of six books and a regular columnist for The Christian Science Monitor, contributing over 400 columns from 1981 to 2005.

On June 16, 2004, he joined a group of twenty-seven called Diplomats and Military Commanders for Change opposing the Iraq War.

This biography of a person who has held a non-elected position in the federal government of the United States is a stub.