Öndörkhaan, is a town in Mongolia located 290 km east of Ulaanbaatar. On November 18, 2013, the city was renamed to Chinggis City in honor of Genghis Khan, who was born and possibly buried in the same province north of the city. Öndörkhaan serves as the capital of the province Khentii Aimag.

Khentii is one of the 21 aimags (provinces) of Mongolia, located in the east of the country. Its capital is Chinggis City. The aimag is named after the Khentii Mountains. It is best known as the birthplace, and likely final resting place, of Temüjin, otherwise known as Genghis Khan.