| Dayu | |
| Native Name: | 大盂镇 |
| Native Name Lang: | zh-cn |
| Settlement Type: | Town |
| Pushpin Map: | China Shanxi |
| Pushpin Label Position: | top |
| Pushpin Map Caption: | Location in Shanxi |
| Coordinates: | 38.1761°N 112.7164°W |
| Subdivision Type: | Country |
| Subdivision Name: | People's Republic of China |
| Subdivision Type1: | Province |
| Subdivision Name1: | Shanxi |
| Subdivision Type2: | Prefectural city |
| Subdivision Name2: | Taiyuan |
| Subdivision Type3: | County-level city |
| Subdivision Name3: | Yangqu County |
| Unit Pref: | Metric |
| Population Density Km2: | auto |
| Timezone1: | China Standard |
| Utc Offset1: | +8 |
| Postal Code Type: | Postal code |
Dayu is a town under the administration of Yangqu County, Shanxi, China.[1], it administers the following twelve villages:[2]