| Chuankou | |
| Official Name: | Chuankouzhen |
| Native Name: | 川口镇 |
| Settlement Type: | Town |
| Pushpin Map: | China Qinghai |
| Pushpin Label Position: | right |
| Pushpin Map Caption: | Location in Qinghai province |
| Pushpin Mapsize: | 250 |
| Subdivision Type: | Country |
| Subdivision Name: | China |
| Subdivision Type1: | Province |
| Subdivision Name1: | Qinghai |
| Subdivision Type2: | Prefecture-level city |
| Subdivision Name2: | Haidong |
| Subdivision Type3: | Autonomous county |
| Subdivision Name3: | Minhe |
| Area Total Km2: | 87 |
| Elevation M: | 1799 |
| Population As Of: | 2018 |
| Population Total: | 81921 |
| Population Density Km2: | auto |
| Timezone: | China Standard |
| Utc Offset: | +8 |
| Coordinates: | 36.3283°N 102.8031°W |
| Postal Code Type: | Postal code |
| Postal Code: | 810800 |
| Area Code: | 0972 |
Chuankou is a town and the county seat of Minhe Hui and Tu Autonomous County, northeastern Qinghai province, Western China, on the border with Yongjing County, Gansu province.