| Official Name: | Patricksburg, Indiana |
| Settlement Type: | Unincorporated community |
| Pushpin Map: | Indiana#USA |
| Pushpin Label: | Patricksburg |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Indiana |
| Subdivision Type2: | County |
| Subdivision Name2: | Owen |
| Subdivision Type3: | Township |
| Subdivision Name3: | Marion |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Coordinates: | 39.3156°N -86.9508°W |
| Elevation Footnotes: | [1] |
| Elevation Ft: | 715 |
| Postal Code Type: | ZIP code |
| Postal Code: | 47455 |
| Area Code: | 812, 930 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 440928 |
Patricksburg (also Lancaster) is an unincorporated community in eastern Marion Township, Owen County, in the U.S. state of Indiana. It lies along State Road 246, west of the city of Spencer, the county seat of Owen County.[2] Its elevation is 715 feet (218 m), and it is located at 39.3156°N -86.9592°W (39.3155987, -86.9591770).[3] Although Patricksburg is unincorporated, it has a post office, with the ZIP code of 47455.[4]
Patricksburg was originally called Lancaster, and under the latter name was laid out and platted in 1851 by Patrick Sullivan.[5] A post office has been in operation under the name Patricksburg (formerly Patricksburgh) since 1854.[6]