Wanning, or in local Hainanese dialect as Ban Ning, is a county-level city in the southeast of Hainan Province, China. Although called a "city", Wanning refers to both the county seat and to the entire county as a whole. The county-wide area has an estimated population of 65,871 (2006).

A county-level municipality, county-level city or county city, formerly known as prefecture-controlled city, is a county-level administrative division of the People's Republic of China. County-level cities have judicial but no legislative rights over their own local law and are usually governed by prefecture-level divisions, but a few are governed directly by province-level divisions.