The Kaidu River (Chinese: 开都河; pinyin: Kāidū Hé), also known under its ancient name Liusha River (Chinese: 流沙河; pinyin: Liúshā Hé; literally: "Flowing Sands River") or Chaidu-gol is a river in the Xinjiang Uyghur Autonomous Region of China and an important source of water for the region.