Karl Martin
German judge
- Born: 1877-04-21 (Bolesławiec)
- Occupation: judge
- Participant in: Judges' Trial (date: 1947-06-18; role: affiant)
- Significant person: Curt Rothenberger (role: colleague; since: 1934-01-01)
- Employer: Landgericht Kiel (period: 1933-06-01 through 1943-10-01, 1944-10-01 through 1945-06-01)
- Residence: Gudensberg (date: 1947-06-18)