Igor Nikolayevich Bezler (Russian: Игорь Николаевич Безлер; Ukrainian: Ігор Миколайович Бєзлєр, romanized: Ihor Mykolayovych Byezlyer; born 1965, Simferopol, Crimean Oblast, Ukrainian SSR), known by the pseudonym "Bes" (Russian: Бес, English: Imp) is one of the pro-Russian rebel leaders whose group controlled the local police department in Horlivka. He was a prominent commander in the early phases of the War in Donbas and the 2014 Crimean crisis. In 2014 he went into hiding and as of 2016 issued statements denouncing the Russian-backed separatist groups.