Jiazi is a town in Qiongshan District of Haikou, the capital city of Hainan Province in the People's Republic of China. It lies more than 45 kilometres (28 miles) southeast of downtown Haikou.
Administratively, Jiazi falls under Qiongshan District, one of the districts that make up the Haikou municipal area. Its position places it in the southeastern part of the Haikou region, at a considerable distance from the city's urban core.
Beyond its administrative status as a town within Qiongshan District and its distance from central Haikou, few details about Jiazi are well documented. It should not be confused with other places in China bearing the same name.