Sam Ellis Haddon (June 19, 1937 – November 26, 2025) was an American attorney and jurist who served as a United States federal judge of the United States District Court for the District of Montana. He was an adjunct instructor at the University of Montana School of Law.

- Gender
- Male
- Race
- White
Prior employment
- University of Montana School of LawAdjunct instructor · 1971–present
- Private practice, Montana1966–2001
- Federal Bureau of NarcoticsAgent · 1961–1962
- U.S. Border PatrolImmigration patrol inspector · 1959–1961
Appointments
2001–2025 · Appointed by George W. Bush (Republican)Term ended: Death
Education
- University of Montana School of LawJ.D. · 1965
- Rice Institute (now Rice University)B.S. · 1959