| Official Name: | Johnson Township |
| Settlement Type: | Township |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Indiana |
| Subdivision Type2: | County |
| Subdivision Name2: | Ripley |
| Government Type: | Indiana township |
| Area Total Sq Mi: | 54.98 |
| Area Land Sq Mi: | 54.62 |
| Area Water Sq Mi: | 0.35 |
| Population As Of: | 2020 |
| Population Total: | 3763 |
| Population Density Sq Mi: | auto |
| Elevation Footnotes: | [1] |
| Elevation M: | 291 |
| Elevation Ft: | 955 |
| Coordinates: | 39.0589°N -85.2497°W |
| Area Code: | 812 |
| Blank Name: | FIPS code |
| Blank Info: | 18-38754[2] |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 453516 |
Johnson Township is one of eleven townships in Ripley County, Indiana. As of the 2020 census, its population was 3,763 (up from 3,685 at 2010[3]) and it contained 1,710 housing units.[4]
According to the 2010 census, the township has a total area of, of which (or 99.35%) is land and (or 0.64%) is water.[3]