Yury Vladimirovich Usachov (Russian: Юрий Владимирович Усачёв; born October 9, 1957 in Donetsk, Rostov Oblast, Russia) is a former cosmonaut who resides in Star City, Moscow. Usachov is a veteran of four spaceflights, including two long duration missions on board the Mir Space Station and another on board the International Space Station.