- 中南海 zhōngnánhǎi ZhongnanhaiPalace complex adjacent to the Forbidden City in Beijing; it serves as the central headquarters and residential compound for the top leaders of the Communist Party and the Chinese government.
- 南海区 nánhǎiqū Nanhai DistrictNanhai, a district of Foshan City, Guangdong province
- 天南海北 tiānnánhǎiběi all over the countryUsed to describe different regions that are far apart; from all over the world or all over the land
- 山南海北 shānnánhǎiběi far and wide(idiom) spread across different, distant regions; covering a vast area
- 南海子 nánhǎizi NanhaiziThe Nanyuan (South Park) imperial hunting grounds located south of Yongdingmen, Beijing
- 南海舰队 nánhǎijiànduì South Sea FleetSouth Sea Fleet; the naval force of the People's Liberation Army responsible for the South China Sea