| Dayin | |
| Pushpin Label Position: | bottom |
| Pushpin Label: | Dayin |
| Native Name Lang: | zh-cn |
| Settlement Type: | Town |
| Subdivision Type3: | County |
| Pushpin Map: | China Sichuan |
| Subdivision Type2: | Autonomous prefecture |
| Coordinates: | 32.1419°N 104.5256°W |
| Subdivision Type: | Country |
| Subdivision Name: | People's Republic of China |
| Subdivision Type1: | Province |
| Subdivision Name1: | Sichuan |
| Pushpin Map Caption: | Location in Sichuan |
| Subdivision Name2: | Mianyang |
| Subdivision Name3: | Pingwu County |
| Subdivision Type4: | Village-level divisions |
| Native Name: | 大印镇 |
| Unit Pref: | Metric |
| Population As Of: | 2010 |
| Population Density Km2: | auto |
| Timezone1: | China Standard |
| Utc Offset1: | +8 |
| Postal Code Type: | Postal code |
| Postal Code: | 622559 |
| Area Code Type: | Local dialing code |
| Official Name: | Dayinzhen |
Dayin (Mandarin: 大两镇) is a town in Pingwu County, Mianyang, Sichuan, China.[1] [2]