Daqiu Island[4][5] (Ta Chiu[6]/Tachiu[7]) (Chinese: 大坵島; pinyin: Dàqiū Dǎo; Wade–Giles: Ta4-chʻiu1 Tao3; Foochow Romanized: Duâi-kiŭ-dō̤) is an island in the East China Sea, part of Beigan Township, Lienchiang County (the Matsu Islands), Fujian Province, Republic of China (Taiwan).

[12] The Lienchiang County government operates a ferry service to the island during the summer.

[10][13] A toxic invasive plant species, Solanum pseudocapsicum, now occupies nearly ten percent of the area of the island and is a threat to the deer population.

[15] During the 20th century, several hundred residents and military personnel lived on the island.

[15] On the afternoon of April 7, 1990, Chen Chin-Kuan (陳金官) and his family left the island to live on Beigan (Peikan), leaving only military personnel remaining on the island.