Wenshan Zhuang and Miao Autonomous Prefecture is an autonomous prefecture in southeastern Yunnan Province, People's Republic of China, and is the easternmost prefecture-level division of the province. It borders Baise, Guangxi, to the east, Vietnam's Hà Giang Province to the south for 438 kilometres (272 mi), Honghe Hani and Yi Autonomous Prefecture to the west, and Qujing to the north.

Baise, or Bose, is the westernmost prefecture-level city of Guangxi, China bordering Vietnam as well as the provinces of Guizhou and Yunnan. The city has a population of 4.3 million, of which 1.4 million live in the urban area.