| His Excellency Michał Jerzy Poniatowski | |
| Archbishop of Gniezno Primate of Poland | |
| Noble Family: | Poniatowski |
| Father: | Stanisław Poniatowski |
| Mother: | Konstancja Czartoryska |
| Birth Date: | 12 October 1736 |
| Birth Place: | Gdańsk, Poland |
| Death Place: | Warsaw, Poland |
Prince Michał Jerzy Poniatowski (12 October 1736 - 12 August 1794) was a Polish nobleman.
Abbot of Tyniec and Czerwińsk (opat tyniecki i czerwinski), Bishop of Płock and Coadjutor Bishop of Kraków (koadiutor krakowski) from 1773, and Archbishop of Gniezno and Primate of Poland from 1784.
He was made a knight of the Order of the White Eagle on 25 November 1764. Nine days later, on 4 December, he was made a prince by his brother, the last king of Poland, Stanisław August Poniatowski.
He was made a royal member of the Royal Society in 1791.[1]