John Campbell "Cam" Barker (born 1980) is a United States district judge of the United States District Court for the Eastern District of Texas.

- Gender
- Male
- Race
- White
Prior employment
State of TexasDeputy solicitor general · 2015–2019- Private practice, Austin and Houston, Texas2011–2015
Criminal Division, U.S. Department of JusticeTrial attorney · 2007–2011
Eastern District of Virginia (on detail)Special assistant U.S. attorney · 2009
Law clerk , Hon. William C. Bryson · 2006–2007
Law clerk , Hon. John M. Walker · 2005–2006
Appointments
2019–present · Appointed by Donald J. Trump (Republican)
Education
LL.M. · 2023
J.D. · 2005- Texas A&M UniversityB.S. · 2002