Tashkurgan Tajik Autonomous County is an autonomous county of Kashgar Prefecture, in western Xinjiang, China. The county seat is Tashkurgan. The county is the only Tajik (Pamiri) autonomous county in China.

Kashgar Prefecture, also known as Kashi Prefecture, is located in southwestern Xinjiang, China, located in the Tarim Basin region. It has an area of 112,057 km2 (43,265 sq mi) and 4,496,377 inhabitants at the 2020 census with a population density of 35.5 inhabitants/km2. The capital of the prefecture is the city of Kashgar which has a population 506,640.