Changtai is a district of Zhangzhou in southern Fujian Province, in the People's Republic of China. It lies just outside Zhangzhou's central urban area, placing it within the broader Zhangzhou municipality rather than at the core of the city itself.
Its position on the edge of Zhangzhou's built-up centre means the district forms part of the urban-rural transition zone around the city, within one of Fujian's main population centres in the province's south.