Xiuyan Manchu Autonomous County is a county in the southeast of Liaoning province, China, and is also one of the 11 Manchu autonomous counties and one of 117 autonomous counties nationally. It is under the administration of and occupies the southernmost portion of Anshan, the centre of which 136 kilometres (85 mi) to the north-northwest, and has a population of 413,000 in 2020.