Mark Esper
- Born
- 26 April 1964 (62 years)
- Place of birth
- Uniontown, Pennsylvania, USA
- Gender
- Male
Mark Thomas Esper is an American politician and manufacturing executive who served as the 27th United States secretary of defense from 2019 to 2020. A member of the Republican Party, he had previously served as the 23rd U.S. secretary of the Army from November 2017 to July 2019.
