Colonel General Igor Valentinovich Korobov (Russian: И́горь Валенти́нович Ко́робов; 3 August 1956 – 21 November 2018) was the Chief of the Main Directorate of the General Staff of the Armed Forces of the Russian Federation, Russia's military intelligence agency previously known as the GRU.

Igor Korobov was born in Vyazma, a town in Russia's Smolensk Oblast, on 3 August 1956.

[3][4] He was appointed by president Vladimir Putin to head the military intelligence directorate (GU) following the sudden death of Igor Sergun in January 2016.

[8] Korobov died on 21 November 2018, "after a long and serious illness", according to sources in the Russian defence ministry cited by official news agencies.

GRU defector Viktor Suvorov said that while he had no knowledge, "My spy instinct tells me that Korobov was murdered.