The Wuding River (Chinese: 无定河) begins in the Ordos Desert in Shaanxi Province, Inner Mongolia and flows south into loess canyons and farmland.

The course of the river roughly parallels the northern route of the ancient Silk Road, now the National Highway 210.

On its early northern reaches stood the 'White City' of Tongwancheng, the main Hun capital on the non-Chinese side of the Great Wall of China.

An ancient 9th century battle poem is set on the banks of the river - Chen Tao's Journey to Longxi describes a warrior dying on the riverbank, whereafter his lover only sees him in her dreams...

The river and its culture gave rise to the bardic folk song tradition of daoqing.