Igor Vsevolodovich Girkin (Russian: И́горь Все́володович Ги́ркин, IPA: [ˈiɡərʲ ˈfsʲevələdəvʲɪdʑ ˈɡʲirkʲɪn]; born 17 December 1970), also known by the alias Igor Ivanovich Strelkov (Russian: И́горь Ива́нович Стрелко́в, IPA: [ˈiɡərʲ ɪˈvanəvʲɪtɕ strʲɪlˈkof]), is a Russian army veteran and former Federal Security Service (FSB) officer who played a key role in the Russian annexation of Crimea, and then in the Donbas War as an organizer of militant groups in the Donetsk People's Republic (DPR). In 2024 he was convicted on charges of inciting extremism. Earlier he received a life sentence in absentia in the Netherlands for his role in downing the Malaysia Airlines Flight 17.
Girkin admitted responsibility for sparking the Donbas War in eastern Ukraine when, in April 2014, he led a group of armed Russian militants who seized Sloviansk. His role in the siege gained him influence and attention, and he was appointed to the position of Minister of Defense in the Donetsk People's Republic, a puppet state of Russia. Girkin was charged with terrorism by Ukrainian authorities. He has also been sanctioned by the European Union, United States, United Kingdom, Australia, Japan, Canada and Switzerland for his leading role in the war in eastern Ukraine.