城南 (; ; Revised Romanization of Korean: ; Hepburn romanization: ) may refer to:
Seongnam, a city in South Korea Chengnan, a subdistrict of Qianjiang District, Chongqing, People's Republic of China Chengnan, a subdistrict of Chaoyang District, Shantou, PRC Jōnan-ku, Fukuoka, a ward of Fukuoka, Japan Jōnan, Kumamoto, a former town of Kumamoto Prefecture, Japan
See also Chengbei (disambiguation) "the north of a castle/city" 城東區 (disambiguation) "the east of a castle/city"