Hanyuan County (simplified Chinese: 汉源县; traditional Chinese: 漢源縣; pinyin: Hànyuán Xiàn) is a county of Sichuan Province, China. It is under the administration of Ya'an city.The principal town is . The Pubugou Hydropower Station in the county has caused displacement problems for thousands of villagers, and in 2004 some 20,000 villagers protested against it.