Ivan Abramovich Gannibal (Russian: Иван Абрамович Ганнибал; June 5, 1735 – October 12, 1801) was an eminent Russian military leader. He was the son of military commander, general and engineer Abram Petrovich Gannibal, as well as the great-uncle of Russia's most famous poet, Alexander Pushkin. Gannibal led a detachment of the Imperial Black Sea Fleet, which besieged and captured the Turkish fortress of Navarin during the Russo-Turkish War (1768–1774), and took part in the founding of the city of Kherson. Gannibal's ultimate military rank was Général en Chef.