| Yi'an | |
| Native Name: | 依安镇 |
| Settlement Type: | Town |
| Pushpin Map: | China Heilongjiang |
| Pushpin Label Position: | left |
| Pushpin Map Caption: | Location in Heilongjiang |
| Subdivision Type: | Country |
| Subdivision Name: | People's Republic of China |
| Subdivision Type1: | Province |
| Subdivision Name1: | Heilongjiang |
| Subdivision Type2: | Prefecture-level city |
| Subdivision Name2: | Qiqihar |
| Subdivision Type3: | County |
| Subdivision Name3: | Yi'an County |
| Population As Of: | 2000 |
| Population Total: | 74233 |
| Timezone: | China Standard |
| Utc Offset: | +8 |
| Coordinates: | 47.8953°N 125.3053°W |
| Elevation M: | 210 |
| Postal Code Type: | Postal code |
| Postal Code: | 161500 |
| Area Code: | 0452 |
Yi'an, is a town and the county seat of Yi'an County, Heilongjiang, China. It used to be called Tai’an (泰安), but was officially renamed in 1947 to Yi’an (依安) to avoid any possibility of confusion within the city of Tai’an (泰安) in Shandong Province (山東省). It is on the former Tsitsihar-Koshen railway about 100km (100miles) west of Bei'an.