Count Peter Ivanovich Ivelich or Peter Ivelich IV (Russian: Пётр Ивелич, also known as Pyotr Ivanovich Ivelich IV; 1772 - after 1851) was a Serb Montenegrin who ranks among the most important Russian generals who fought during the Napoleonic invasion of Russia. His portrait was added to the Military Gallery of the Winter Palace along with other participants in the Patriotic War of 1812. His uncles are count Marko Ivelich (Ivelich I), major-general Ivan Konstantinovich Ivelich (Ivan Ivelich III) and colonel (Simeon Ivelich II).