Szymon Marcin Kossakowski
| Szymon Marcin Kossakowski | |
|---|---|
| Coat of arms | Ślepowron | 
| Born | 1741 Šilai, Jonava | 
| Died | April 25, 1794 (aged 52–53) Vilnius | 
| Noble family | Kossakowski | 
| Father | Dominik Kossakowski | 
| Mother | Marianna Zabiełło | 
Szymon Marcin Kossakowski (Lithuanian: Simonas Martynas Kosakovskis; 1741 in Šilai, Jonava – 1794) was a Polish–Lithuanian nobleman (szlachcic), and one of the leaders of the Targowica Confederation. In 1793, he became the last Grand Hetman of Lithuania.