| Official Name: | Mahalasville, Indiana |
| Pushpin Map: | Indiana#USA |
| Pushpin Label: | Mahalasville |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Indiana |
| Subdivision Type2: | County |
| Subdivision Name2: | Morgan |
| Subdivision Type3: | Townships |
| Subdivision Name3: | Jackson, Washington |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Coordinates: | 39.3603°N -86.3628°W |
| Elevation Ft: | 630 |
| Postal Code Type: | ZIP code |
| Postal Code: | 46151 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 438476 |
Mahalasville is an unincorporated community on the border of Jackson Township and Washington Township in Morgan County, Indiana.
A post office was established at Mahalasville in 1854, and remained in operation until it was discontinued in 1928.[1]