| Official Name: | Grant Township |
| Settlement Type: | Township |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Indiana |
| Subdivision Type2: | County |
| Subdivision Name2: | Greene |
| Government Type: | Indiana township |
| Area Total Sq Mi: | 24.61 |
| Area Land Sq Mi: | 24.59 |
| Area Water Sq Mi: | 0.03 |
| Area Water Percent: | 0.12 |
| Population As Of: | 2020 |
| Population Total: | 682 |
| Population Density Sq Mi: | auto |
| Elevation M: | 167 |
| Elevation Ft: | 548 |
| Coordinates: | 39.0356°N -87.0858°W |
| Blank Name: | GNIS feature ID |
| Blank Info: | 0453336 |
Grant Township is one of fifteen townships in Greene County, Indiana, USA. As of the 2020 census, its population was 682,[1] down from 739 at 2010.[2]
According to the 2010 census, the township has a total area of, of which (or 99.92%) is land and (or 0.12%) is water.[2] The stream of Buck Creek runs through this township.
The township contains three cemeteries: Buzan, Switz City and Waggoner.