Chifeng is a prefecture-level city in southeastern Inner Mongolia, People's Republic of China. It borders Xilin Gol League to the north and west, Tongliao to the northeast, Chaoyang in Liaoning province to the southeast, and Chengde in Hebei province to the south.
The city has a total administrative area of 90,275 square kilometres (34,855 square miles). At the 2020 census it had a population of 4,035,967 inhabitants. Of these, 1,175,391 lived in the built-up area formed by the two urban districts of Hongshan and Songshan; the Yuanbaoshan district is not yet conurbated with them. A large part of Songshan district remains rural, and Yuanbaoshan district is a de facto separate town 27 kilometres from the core district of Chifeng.
Chifeng was the administrative centre of the former Ju Ud League.