| Dayin | |
| Native Name: | 大隐镇 |
| Native Name Lang: | zh-cn |
| Settlement Type: | Town |
| Pushpin Map: | China |
| Pushpin Map Caption: | Location in Zhejiang--> |
| Coordinates: | 29.9361°N 121.3669°W |
| Subdivision Type: | Country |
| Subdivision Name: | People's Republic of China |
| Subdivision Type1: | Province |
| Subdivision Name1: | Zhejiang |
| Subdivision Type2: | Sub-provincial city |
| Subdivision Name2: | Ningbo |
| Subdivision Type3: | County-level city |
| Subdivision Name3: | Yuyao |
| Unit Pref: | Metric |
| Area Total Km2: | 30.67 |
| Elevation M: | 12 |
| Elevation Ft: | 38 |
| Population Density Km2: | auto |
| Timezone1: | China Standard |
| Utc Offset1: | +8 |
| Postal Code Type: | Postal code |
| Area Code: | 0574 |
Dayin is a town in northeastern Zhejiang province, China, located at the northeastern end of the Siming Mountains (四明山) west of downtown Ningbo and just south of G92 Hangzhou Bay Ring Expressway. It is under the administration and located in the eastern end of Yuyao City,[1] and, it has one residential community (居委会) and 5 villages under its administration.[2]