Baise (Chinese: 百色; pinyin: Bǎisè, Bósè; local pronunciation: paːk˧˥ ɬɐk˥), or Bose, is the westernmost prefecture-level city of Guangxi, China bordering Vietnam as well as the provinces of Guizhou and Yunnan.

Baise is located in western-northwestern Guangxi bordering Qianxinan Buyei and Miao Autonomous Prefecture (Guizhou) to the north, Qujing and Wenshan Zhuang and Miao Autonomous Prefecture of Yunnan to the west, the Vietnamese provinces of Hà Giang and Cao Bằng to the south and southwest, and the Guangxi cities of Hechi to the northeast/east, Nanning to the east, and Chongzuo to the southeast.

Rainfall is low compared to more easterly locations in Guangxi, averaging around 1,067 mm (42 in) per annum, a majority of which occurs from June to August.

Significant temperature variation exists in the prefecture; the western parts, with an average elevation surpassing 500 m (1,640 ft), lie along the southeastern fringes of the Yunnan–Guizhou Plateau, and hold a climate similar to that of central Yunnan, with much more moderate summer temperatures.

It is the town where Deng Xiaoping, Chen Haoren and other leaders of the Chinese Communist Party organized the Baise Uprising against the Nationalist government on December 11, 1929.

These features along with unique ethnic minority culture and important historical sites make it a growing tourist destination.