Jan Jerzy Grabowski

Jan Jerzy Grabowski (?-1789) of the Topór coat of arms was a Polish noble, general (from 1782), marshal of the Słuck Confederation (1767).

He was married twice, first to Joanna Gruszczyńska, and the second time, to Elżbieta Szydłowska. Some of the children of his marriage to Elżbieta are thought to have actually been children of the last Polish-Lithuanian Commonwealth king, Stanisław August Poniatowski, whose Elżbieta was the mistress of.

He was one of the few Calvinist politicians of contemporary Poland.