| Official Name: | Penn 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: | 30.21 |
| Area Land Sq Mi: | 30.19 |
| Area Water Sq Mi: | 0.02 |
| Area Water Percent: | 0.07 |
| Population As Of: | 2020 |
| Population Footnotes: | [1] |
| Population Total: | 1133 |
| Population Density Sq Mi: | auto |
| Elevation M: | 272 |
| Elevation Ft: | 892 |
| Coordinates: | 40.5292°N -85.1581°W |
| Blank Name: | GNIS feature ID |
| Blank Info: | 0453712 |
Penn Township is one of twelve townships in Jay County, Indiana, United States. As of the 2020 census, its population was 1,133 (down from 1,239 at 2010[2]) and it contained 530 housing units.
Penn Township was named in honor of William Penn.[3]
The Rebecca Rankin Round Barn was listed on the National Register of Historic Places in 1993.
According to the 2010 census, the township has a total area of, of which (or 99.93%) is land and (or 0.07%) is water.[2] The streams of Brooks Creek and Haines Creek run through this township.
The township contains three cemeteries: Hillside, Maple Lawn and West Grove.