Huayuan County (simplified Chinese: 花垣县; traditional Chinese: 花垣縣; pinyin: Huāyuán Xiàn) is under the administration of Xiangxi Tujia and Miao Autonomous Prefecture, Hunan province, China, bordering Chongqing's Xiushan Tujia and Miao Autonomous County to the northwest and the Guizhou prefecture-level city of Tongren to the southwest.