| Official Name: | Portersville, Indiana |
| Pushpin Map: | Indiana#USA |
| Pushpin Label: | Portersville |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Indiana |
| Subdivision Type2: | County |
| Subdivision Name2: | Dubois |
| Subdivision Type3: | Township |
| Subdivision Name3: | Boone |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Coordinates: | 38.4994°N -86.9783°W |
| Elevation Footnotes: | [1] |
| Elevation Ft: | 472 |
| Postal Code Type: | ZIP code |
| Postal Code: | 47546 |
| Area Code: | 812, 930 |
| Blank Name: | FIPS code |
| Blank Info: | 18-61200[2] |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 441469 |
Portersville is an unincorporated community in Boone Township, Dubois County, in the U.S. state of Indiana.
Portersville was established as a town circa 1818.[3] It is reportedly the oldest town in Dubois County, and was selected as the county seat of Dubois County before it was changed to Jasper.[4] A post office was established at Portersville in 1821, and remained in operation until it was discontinued in 1909.[5]