| Official Name: | Clarksville, Hamilton County, Indiana |
| Pushpin Map: | Indiana#USA |
| Pushpin Label: | Clarksville |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Indiana |
| Subdivision Type2: | County |
| Subdivision Name2: | Hamilton |
| Subdivision Type3: | Township |
| Subdivision Name3: | Wayne |
| Coordinates: | 38.2967°N -85.76°W |
| Elevation Ft: | 456 |
| Postal Code Type: | ZIP code |
| Postal Code: | 46060 |
| Blank Name: | FIPS code |
| Blank Info: | 18-12952[1] |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 432577 |
Clarksville is an unincorporated community in Wayne Township, Hamilton County, Indiana. It was likely named in honor of George Rogers Clark, an officer in the American Revolutionary War.[2]
Clarksville was originally called Nicholsonville, and under the latter name was laid out in 1849 by Abraham Nicholson.[3] Clarksville was incorporated as a town in 1867, however its incorporation was later dissolved.[4]
A post office was established as Nicholsonville in 1850, was renamed Clarksville that same year, and closed in 1902.[5]