Ihor Volodymyrovych Mosiychuk (Ukrainian: ???? ????????????? ????????, born 5 May 1972, Lubny, Poltava Oblast) is a Ukrainian journalist and politician, a leading figure in the organized neo-nazi movement, the editor-in-chief of the newspaper Vechirnaya Vasilkov, and a participant of the Vasylkiv terrorists case.
He is a former deputy of Verkhovna Rada from Radical Party of Oleh Lyashko.
On 25 October 2017, a parked scooter exploded in Kiev, which was thought to be an assassination attempt on him.
The blast killed his bodyguard and another man.
Mosiychuk and a political scientist Vitaliy Bala along with another woman were injured.(Mosiychuk's) Radical Party lost all its parliamentary seats in the 2019 Ukrainian parliamentary election, because it gained about 1% to little to clear the 5% election threshold and also did not win an electoral district seat.