Menyuan Hui Autonomous County (simplified Chinese: 门源回族自治县; traditional Chinese: 門源回族自治縣; pinyin: Ményuán Huízú Zìzhìxiàn, Xiao'erjing: مٍیُوًا خُوِذُو ذِجِشِیًا‎; Tibetan: སེམས་ཉིད་ཧུའེ་རིགས་རང་སྐྱོང་ཞན།) is a county in the northeast of Qinghai Province, China, bordering Gansu Province to the north.

It is under the administration of Haibei Tibetan Autonomous Prefecture.

Gangshiqia Peak rises dramatically in the north of the county.

It used to be called Menyuan (亹源) in Chinese, with a different first character from the current name.

Haiyan County is made up of 4 towns, 7 townships, and 1 ethnic township: Others: This Qinghai location article is a stub.