Yiwu (Aratürük) County (Uyghur: ئارا تۈرۈك ناھىيىسى, ULY: Ara Türük Nahiyisi, UYY: Ara Türük Nah̡iyisi?; Chinese: 伊吾县; pinyin: Yīwú Xiàn) is a county within the Xinjiang Uyghur Autonomous Region and is under the administration of the Hami Prefecture. It contains an area of 19,511 km2. According to the 2002 census, it has a population of 20,000.