| Official Name: | Jackson Township |
| Settlement Type: | Township |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Indiana |
| Subdivision Type2: | County |
| Subdivision Name2: | Jay |
| Government Type: | Indiana township |
| Area Total Sq Mi: | 36.37 |
| Area Land Sq Mi: | 36.34 |
| Area Water Sq Mi: | 0.02 |
| Area Water Percent: | 0.05 |
| Population As Of: | 2020 |
| Population Footnotes: | [1] |
| Population Total: | 991 |
| Population Density Sq Mi: | auto |
| Elevation M: | 266 |
| Elevation Ft: | 873 |
| Coordinates: | 40.5267°N -85.0525°W |
| Blank Name: | GNIS feature ID |
| Blank Info: | 0453452 |
Jackson Township is one of twelve townships in Jay County, Indiana, United States. As of the 2020 census, its population was 991 (up from 965 at 2010[2]) and it contained 316 housing units.
Jackson Township was organized in 1838.[3]
According to the 2010 census, the township has a total area of, of which (or 99.92%) is land and (or 0.05%) is water.[2] The streams of Bear Creek, Dunkirk Drain, Haskin Run, Wall Run and Wolf Creek run through this township.
The township contains one cemetery, Gravel Hill.