Tao River (Chinese: 洮河) is a right tributary of China's Yellow River. It starts in Xiqing Mountains (西倾山) near the Gansu–Qinghai border, flows eastward across Gannan Tibetan Autonomous Prefecture, and then northward more or less along the border between Dingxi Prefecture-level City in the east and Gannan and Linxia Prefectures in the west.