Simapo Island () is located in the Nandu River, Haikou, Hainan, China. It is currently under development.
The 1.134 km<sup>2</sup> island is located approximately 50 metres south of the Qiongzhou Bridge, and 5 km north of the Nandu River Iron Bridge. It will be developed with an emphasis on sports facilities, and will include a sports park and golf course. Garden-style hotels and several bars will also be constructed.