Du'an Yao Autonomous County (zhuang: Duhnganh Yauzcuz Swci Yen,simplified Chinese: 都安瑶族自治县; traditional Chinese: 都安瑤族自治縣; pinyin: Dū'ān Yáozú Zìzhìxiàn) is an autonomous county under the administration of Hechi City, in the northwest of Guangxi, China.