| Menyuan County | |
| Official Name: | |
| Postal Code Type: | Postal code |
| Settlement Type: | Autonomous County |
| Pushpin Map: | China Qinghai |
| Pushpin Label: | Menyuan |
| Pushpin Map Caption: | Location of the seat in Qinghai |
| Subdivision Type: | Country |
| Subdivision Name: | China |
| Subdivision Type1: | Province |
| Subdivision Name1: | Qinghai |
| Subdivision Type2: | Autonomous prefecture |
| Subdivision Name2: | Haibei |
| Seat: | Haomen Town |
| Seat Type: | County seat |
| Area Total Km2: | 6,381.65 |
| Population Total: | 138335 |
| Population As Of: | 2020 |
| Population Density Km2: | auto |
| Population Footnotes: | [1] |
| Coordinates: | 37.4333°N 143°W |
| Timezone: | China Standard |
| Utc Offset: | +8 |
| Order: | st |
| S: | 门源回族自治县 |
| T: | 門源回族自治縣 |
| P: | Ményuán Huízú Zìzhìxiàn |
| Tib: | or |
Menyuan Hui Autonomous County (Chinese: s=门源回族自治县|t=門源回族自治縣|p=Ményuán Huízú Zìzhìxiàn, Xiao'erjing: ;) 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. Menyuan is situated on the Datong River between the Qilian Mountains and Daban Mountains. Gangshiqia Peak rises dramatically in the north of the county. It used to be called Menyuan (Chinese: 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:
| Name | Simplified Chinese | Hanyu Pinyin | Tibetan | Wylie | Administrative division code | Notes |
|---|---|---|---|---|---|---|
| Towns | ||||||
| Haomen Town (Julag Town) | Chinese: 浩门镇 | 632221100 | ||||
| Qingshiju Town (Dê'gyaitiubur Town) | Chinese: 青石咀镇 | 632221101 | ||||
| Quankou Town (Xartang Town) | Chinese: 泉口镇 | 632221102 | ||||
| Dongchuan Town | Chinese: 东川镇 | 632221103 | ||||
| Townships | ||||||
| Beishan Township (Qangri Township) | Chinese: 北山乡 | 632221200 | ||||
| Malian Township | Chinese: 麻莲乡 | 632221201 | ||||
| Xitan Township (Nubtang Township) | Chinese: 西滩乡 | 632221202 | ||||
| Yintian Township (Sibxing Township) | Chinese: 阴田乡 | 632221203 | ||||
| Xianmi Township (Sêmnyi Township) | Chinese: 仙米乡 | 632221204 | ||||
| Zhugu Township (Chuku Township) | Chinese: 珠固乡 | 632221205 | ||||
| Sujitan Township (Soi'gyitang Township) | Chinese: 苏吉滩乡 | 632221206 | ||||
| Ethnic township | ||||||
| Huangcheng Mongol Ethnic Township | Chinese: 皇城蒙古族乡 | 632221207 | (Mongolian) | |||