Xiuyan Manchu Autonomous County (simplified Chinese: 岫岩满族自治县; traditional Chinese: 岫岩滿族自治縣; pinyin: Xiùyán Mǎnzú Zìzhìxiàn) is a county in the southeast of Liaoning province, People's Republic of China, and is also one of the 11 Manchu autonomous counties and one of 117 autonomous counties nationally.