Toktar Ongarbayuly Aubakirov (Kazakh: Тоқтар Оңғарбайұлы Әубәкіров, Russian: Токтар Онгарбаевич Аубакиров, born on 27 July 1946) is a retired Kazakh Air Force officer and a former cosmonaut. In 1991, in accordance with an agreement between the governments of the USSR and the Kazakh SSR, started training at the Gagarin Cosmonaut Training Center. On 2 October 1991 he launched with Russian cosmonaut Alexander Volkov as flight commander, and the Austrian research cosmonaut Franz Viehböck in Soyuz TM-13 from the Baikonur Cosmodrome spaceport, and spent over eight days in space.