Nanhai

Nanhai may refer to:


 * Nanhai, the Chinese name for the South China Sea, one of the Four Seas
 * Nanhai Commandery, the former Chinese administration over Liangguang
 * Nanhai, the Chinese name for the South China Sea Islands
 * The Nanhai I, a Chinese wreck from the Southern Song dynasty raised in 2007
 * Nanhai, a lake in the Zhongnanhai complex in Beijing
 * Nanhai Academy, a collection of cultural and educational facilities located on Nanhai Road in Taipei, Taiwan
 * Nanhai District, Foshan, Guangdong
 * Nanhai, Hubei (zh), town in Songzi, Hubei
 * Nanhai Township (zh), subdivision of Pingtan County, Fujian
 * Nanhai Subdistrict, Maoming (zh), in Maogang District, Maoming, Guangdong
 * Nanhai Subdistrict, Zhumadian (zh), in Yicheng District, Zhumadian, Henan