Mark Douglas "Doug" Harpool (born 1956) is a senior United States district judge of the United States District Court for the Western District of Missouri. He also has been a Democratic American politician, and a former member of the Missouri House of Representatives from southwest Missouri's 134th district. He served five terms from January 5, 1983, to January 6, 1993.

- Gender
- Male
- Race
- White
Prior employment
- Private practice, Springfield, Missouri1980–2014
- MissouriState representative · 1983–1992
Appointments
2014–2026 · Appointed by Barack Obama (Democratic)
Education
- University of Missouri School of LawJ.D. · 1980
- Southwest Missouri State University (now Missouri State University)B.S. · 1977