Chaoyang is a prefecture-level city in western Liaoning province, People's Republic of China. With a vast land area of almost 20,000 square kilometres, it is by area the largest prefecture-level city in Liaoning, and borders on Hebei province and the Inner Mongolia Autonomous Region to the west. The area under Chaoyang's jurisdictional control is split up into two counties, two urban districts, two county-level cities, and the Harqin Left Wing Mongolian Autonomous County.