Sumdo is a village located in the Lahul and Spiti district of Himachal Pradesh, India. It is situated at the confluence of the Pare Chu river and the Spiti River.
The village is positioned near the border with Tibet, specifically opposite the Tsosib Sumkyil Township on the Tibetan side. While it is located within Indian territory, China claims the village as part of its Tsamda County in Tibet.