Dongdongting Shan, Mountain peak in Suzhou, China

Dongdongting Shan, also called Dongshan, is a peninsula in Lake Taihu in Dongshan town, Wuzhong district, Suzhou, Jiangsu. It covers about 60 square kilometres and faces Xidongting Shan across the water. The hill is a Devonian sandstone range, steeper on its southeast side, whose main summit, Moli Feng, rises 293 metres.

Dongdongting Shan was originally an island in Lake Taihu, facing Xidongting Shan; it became a peninsula through artificial embankment and reclamation during the Yongzheng reign of the Qing dynasty. Legend holds that the Sui general Mo Li stationed troops here, giving the mountain its name Molishan, and that Wu Zixu brought his mother to live on this land, so it was anciently called Xumushan.

The name Dongshan comes from its position east of Lake Taihu's Dongting range; locals also call it Moli Shan after the Sui general Mo Li, said to have camped here, or Xu Mu Shan after Wu Zixu, who reportedly brought his mother to live on the slope. The peninsula's villages are known for tea and fruit grown on the slopes.

Dongdongting Shan is a peninsula in Taihu Lake, about 60 square kilometres, with the main summit Molifeng at 293 metres; the southeast side is the steepest. It lies in Dongshan town, Wuzhong district, Suzhou, roughly 190 km southeast of Nanjing. August is the wettest month, averaging 234 mm of rain, so plan walks with that in mind.

The name Dongdongting Shan sets it apart from Xidongting Shan, the western mountain of Lake Taihu, which it faces across the water. The peninsula's other old name, Xumu Shan, comes from a legend that Wu Zixu brought his mother to live here. The Sui general Mo Li is said to have camped on the mountain, which is why its main peak, at 293 metres, is called Moli Feng.