Xiachuan Island (Chinese: 下川岛; pinyin: Xiàchuāndǎo) (Hsiachwan Shan) is an island of the South China Sea, on the southern coast of China, part of the Guangdong province.

Administratively, Chuandao (川岛镇) is one of the 16 towns of Taishan.

The island is located near the larger Shangchuan Island, which lies East of Xiachuan.

Shangchuan and Xiachuan have been established as a Tourism Open Integrated Experimental Zones (旅游开发综合试验区; lǚyóu kāifā zōnghé shìyàn qū).

Xiachuan Island is linked from the mainland by Shanzui Harbor ferry.There is also ferry service between Xiachuan and its sister island Shangchuan Island.

• Chuanshan Archipelago
• Geography of China
• List of islands of the People's Republic of China
• List of islands in the South China Sea

• Xiachuan on taishan.com (in English)
• Xiachuan on tsinfo.com.cn (in English)
• Detailed description of the island (in Chinese)
• Another detailed description of the island (in Chinese)
• Map of the island (in Chinese)

21°39′N 112°36′E / 21.650°N 112.600°E / 21.650; 112.600