The Hlai, also known as Li or Lizu, are a Kra–Dai-speaking ethnic group, one of the 56 ethnic groups officially recognized by the People's Republic of China. The vast majority live off the southern coast of China on Hainan Island, where they are the largest minority ethnic group. Divided into the five branches of the Qi (Gei), Ha, Run (Zwn), Sai and Meifu (Moifau), the Hlai have their own distinctive culture and customs.

Hainan is an island province of the People's Republic of China (PRC), consisting of the eponymous Hainan Island and various smaller islands in the South China Sea under the province's administration. It is the southernmost province of China, and the name means "south of the sea", reflecting the island's position south of the Qiongzhou Strait, which separates it from Leizhou Peninsula of the Chinese mainland.