- Gender: Male
- Birthday: 1936-11-04
- Day of Death: 2017-09-25 ( 81 years old )
- Place of Birth: Praha, Československo
- Also Known As: Jan Tríska
Jan Triska or Jan Tříska (Czech pronunciation: [ˈjan ˈtr̝̊iːska]; 4 November 1936) is a Czech actor, most notable for portraying Captain Henry Wirz in the American television film Andersonville.