Khardung La (Tibetan: མཁར་གདོང་ལ་, Wylie: mkhar gdong la, THL: khar dong la) or Khardung Pass is a mountain pass in the Leh district of the Indian union territory of Ladakh.
The pass is on the Ladakh Range, north of Leh, and connects the Indus river valley and the Shyok river valley. It also forms the gateway to the Nubra Valley, beyond which lies the Siachen Glacier. A motorable road through the pass was built in 1976, and opened to public motor vehicles in 1988. Maintained by the Border Roads Organisation, the pass is strategically important to India as it is used to carry supplies to the Siachen Glacier. The road is one of the world's highest motoroable roads.