Hm is the abbreviation of which city in China.

Hm is the abbreviation of Hami, China. Hami, known as Yizhou in ancient times, is a prefecture-level city under the jurisdiction of Xinjiang Uygur Autonomous Region. Located in the east of Xinjiang, it is the main road leading to the inland of Xinjiang. It has been the throat of the Silk Road since ancient times and is known as the "gateway to Xinjiang". It is adjacent to Jiuquan City in Gansu Province in the east, Bayinguoleng Mongolian Autonomous Prefecture in the south, Turpan City and Changji Hui Autonomous Prefecture in the west, and Mongolia in the north. It has a national first-class seasonal open port.