The Danjo Islands (男女群島, Danjo-guntō, literally: "male and female archipelago") are a small uninhabited Japanese island group in the East China Sea situated approximately 70 kilometres (43 mi) south-southwest of the Gotō Islands and administratively part of the city of Gotō, Nagasaki Prefecture.

[1] The five main islands of O-shima (男島) Kuroki-jima (クロキ島), Yori-shima (寄島), Hanaguri-jima (ハナグリ島), and Me-shima (女島) together stretch some 10 kilometres (6.2 mi) from north to south and cover an area of 4.7 square kilometres (1.8 sq mi).

[1] The islands, their flora, and their fauna are protected as a Natural Monument,[3] Biotic Community Protection Forest,[2] Special Wildlife Protection Area, [4][5] and Important Bird Area.

[6][7] Birds found on the islands include the Japanese murrelet, streaked shearwater, brown booby, Ryukyu robin, Japanese wood pigeon, and Pleske's grasshopper warbler.

[6]