Nanri Island (Chinese: simplified Chinese: 南日岛; traditional Chinese: 南日島), Nanjisü, Nanjih, historically known as Nanni Shan (南匿山) and Nanri Shan (南日山), is a small island off the coast of China. Nanri Town (南日镇) is an administrative unit of Xiuyu District, Putian, Fujian, People's Republic of China which includes 111 islands and islets.
In October 1952, the island was the site of the Battle of Nanri Island between the People's Liberation Army and the Republic of China Army; the engagement ended in an ROC victory and resulted in the ROC occupying Nanri. However, ROC forces later withdrew to Taiwan, and the island was re-occupied by the People's Republic of China.
The town of Nanri (which includes nearby islands) is divided into seventeen villages:
Haishan (海山村), Yunwan (云万村), Yanxia (岩下村), Shipan (石盘村), Shanchu (山初村), Wanfeng (万峰村), Sandun (三墩村), Xigao (西高村), Shayang (沙洋村), Gangnan (港南村), Fuye (浮叶村), Houye (后叶村), Dongdai (东岱村), Xiaori (小日村), Aoyu (鳌屿村, also known as Ta-ao Hsü (大嶅㠘)), Luopan (罗盘村), Chishan (赤山村)Other populated places include Fou-tou (浮斗), Hsi-hu (西户), Hsi-kao, Ts'ao-hu, T'ou-ying-shih (頭英石), Ts'u-shan (粗山), Shih-t'ou-p'an and Shang-t'ou.
The island is heavily involved in the fishing industry, and several fish farms have been established off the coast of the island. The island's mudflats are cultivated for seaweed and kelp production. In 2015, a wind farm was established on the island.