Leon Jan Piniński was a Polish scholar, diplomat, art historian and politician. A professor of Roman law and one-time rector of the Lwów University (1928–1929), he devoted much of his life to a political career in his home city of Lwów, first under Austria-Hungary then in independent Poland.
- Occupation
- diplomat, pedagogue, politician, jurist
- Position held
- Member of the Diet of Galicia and Lodomeria, Member of Abgeordnetenhaus, Member of the House of Lords (Austria)
- Citizenship
- Austrian Empire, Austria–Hungary, Second Polish Republic
- Born
- March 8, 1857
- Died
