The Bouyei (also spelled Puyi, Buyei and Buyi; Bouyei: Buxqyaix, [puʔjai] or "Puzhong", "Burao", "Puman"; Chinese: 布依族; pinyin: Bùyīzú; Vietnamese: người Bố Y), otherwise known as the Zhongjia, are an ethnic group living in Southern Mainland China.

Numbering 3.5 million, they are the 10th largest of the 56 ethnic groups officially recognized by the People's Republic of China.

The Bouyei language has its own written form, created by linguists in the 1950s based on the Latin alphabet and with spelling conventions similar to the Pinyin system that had been devised to romanise Mandarin Chinese.

During the Nanlong Rebellion(南笼起义) of 1797 led by Wang Nangxian, the Bouyei underwent a strong repression that caused many of them to emigrate to faraway Vietnam.

Due to changing economies, the Bouyei engage in both small-scale and large-scale commercial or business operations.

One native festival is called the Ox King's Day(牛王节) on April 8, an annual celebration meant to honor oxen and their contribution to agricultural activities.

According to Bouyei mythology, after Pangu became an expert in rice farming after creating the world, he married the daughter of the Dragon King, and their union gave rise to the Buyei people.