Thupstan Chhewang (born 1 September 1947) is an Indian politician who was a member of the 14th and 16th Lok Sabha representing the Ladakh constituency in the former state of Jammu and Kashmir.

He was born in Shey to Shey Lonpo Sonam Tsephel, an aristocrat, who chose to serve the poor by imparting education to them, and Princess Norzin Wangmo, great-great-great-granddaughter of Tsepel Tundup Namgyal, the last independent ruler of Ladakh and sister to the 19th Kushok Bakula, aunt to Galdan Thripa Thupstan Nyima, younger sister to Princess Rigzin Wangmo, grand niece to the 18th Bakula and first cousin to Princess Tsering Dolkar of Leh Khangsar.

He completed his primary education until class 5th from his native village and after that Kushok Bakula Rinpochey his uncle, took him with himself to Kashmir for studies.

He began his career as a political activist in the year 1972, when he along with some other youths organised a protest when Syed Mir Qasim visited Ladakh and was imprisoned for twenty days.

He spearheaded the agitations for inclusion of the Ladakhis as Scheduled Tribes, autonomy for the region demanding the status of Union Territory for Ladakh.