Upper Chitral District is an administrative district in the province of Khyber Pakhtunkhwa, Pakistan. Kho people are the dominant ethnic group in the district, forming 99.84% of the total population.

Mastuj is a tehsil and a valley in Upper Chitral District in Khyber Pakhtunkhwa province of Pakistan. Mastuj is the principal settlement. It is located at 36°17'0N 72°31'0E with an altitude of 2359 me