Gioacchino de Gemmis (4 October 1746 - 12 December 1822) was a Catholic bishop, archpriest, prelate and rector of the University of Altamura.
He's best known for his role in the so-called Altamuran Revolution (1799), advocating peace and helping the refugees, who had fled Altamura after the battle with the Sanfedisti, to be allowed in Terlizzi.