Toksun (Toqsun) County (Uyghur: پىتوقسۇن ناھىيىسى‎, ULY: Toqsun Nahiyisi, UYY: Tok̡sun Nah̡iyisi?) is a county within the Xinjiang Uyghur Autonomous Region of the People's Republic of China (PRC) and is under the administration of the Turpan Prefecture. It contains an area of 16,128 km2 (6,227 sq mi). According to the 2002 census, it then had a population of 110,000.