| Jan of Tarnów | ||
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| Noble Family | Tarnowski | |
| Coat of Arms | Leliwa | |
| Parents | Jan of Tarnów Katarzyna |
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| Consorts | Elżbieta ze Sternberka | |
| Children | with Elżbieta ze Sternbarka Katarzyna Tarnowska Jan Feliks Tarnowski Jan Rafał Tarnowski Jan Amor Młodszy Tarnowski Jan Amor Starszy Tarnowski Jan Gratus Tarnowski |
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| Date of Birth | c. 1367 | |
| Place of Birth | Tarnów | |
| Date of Death | August 17, 1433 | |
| Place of Death | Tarnów | |
Jan of Tarnów (Polish: Jan z Tarnowa) (1367–1433) was a Polish nobleman (szlachcic).
Jan was owner of Tarnów and Wielowieś estates. He became dean of Kraków from September 27, 1398 to November 12, 1409 and voivode of Kraków Voivodeship in 1409.
Like his brother Spytek, Jan commanded one of the Leliwa clan banners at the Battle of Grunwald in 1410.