Öndörkhaan (; ; sometimes Undurkhaan), is a town in Mongolia located 290 km east of Ulaanbaatar. The Mongolian Parliament, State Great Khural, renamed the city Chinggis City on November 18, 2013 in honor of Genghis Khan, who was born and possibly buried in the same province north of the city. Öndörkhaan has a population of roughly 15,000 persons and serves as the capital of the Khentii Aimag (province). Öndörkhaan officially known as Kherlen sum.