The original toponimy in Central Asia started to form beginning from the times of 10 thousand years ago, i.e. long before coming of the Iranians and the Turks. The place-names of Turkic origin were spread in Central Asia in ancient period, and later in early medieval times they were dominated in the region. Research of the complex of Turkic toponymy allowed us to conclude that the Turks inhabited in Central Asia from the ancient period, formed a great part of local population in early medieval times and settled along the whole territory of Central Asia from Yettisu region to Khur s n.