Haitang Bay (Chinese: 海棠湾; pinyin: Hǎitáng Wān) is one of the five major bays in Sanya, Hainan Province, China.

[1][2] This 42.8 km (26.6 mi) beach is located in Haitangwan Town, Sanya, and Yingzhou Town, Lingshui.

To its south are Yalong Bay and Wuzhizhou Island.

A number of resort hotels are located along the beach.

The total area is 540,000 square metres (54 ha; 130 acres) and has 1,314 hotel rooms.