Grigore III Ghica was twice the Prince of Moldavia between 29 March 1764 – 3 February 1767 and September 1774 – 10 October 1777 and of Wallachia: 28 October 1768 – November 1769.
He was son of Alexandru Ghica, son of Matei Ghica, which in turn was son of Grigore I Ghica.
A Phanariote ruler (domnitor) of the Ghica family, Grigore Ghica was assassinated by the Ottomans for opposing the annexation of the northwestern part of Moldavia (later named Bukovina) by the Habsburg Empire.
He married Ecaterine Rizou-Rangave and his son was