| Official Name: | Erwin, Indiana |
| Pushpin Map: | Indiana#USA |
| Pushpin Label: | Erwin |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Indiana |
| Subdivision Type2: | County |
| Subdivision Name2: | Posey |
| Subdivision Type3: | Township |
| Subdivision Name3: | Black |
| Timezone: | Central (CST) |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Coordinates: | 37.98°N -87.9192°W |
| Elevation Ft: | 384 |
| Postal Code Type: | ZIP code |
| Postal Code: | 47620 |
| Area Code: | 812, 930 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 434235 |
Erwin is an unincorporated community in Black Township, Posey County, in the U.S. state of Indiana.
The community was named for David M. Erwin, a local merchant.[1]