| Official Name: | Madison 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: | 30.83 |
| Area Land Sq Mi: | 30.82 |
| Area Water Sq Mi: | 0.01 |
| Area Water Percent: | 0.03 |
| Population As Of: | 2020 |
| Population Footnotes: | [1] |
| Population Total: | 643 |
| Population Density Sq Mi: | auto |
| Elevation M: | 307 |
| Elevation Ft: | 1007 |
| Coordinates: | 40.3553°N -84.86°W |
| Blank Name: | GNIS feature ID |
| Blank Info: | 0453592 |
Madison Township is one of twelve townships in Jay County, Indiana, United States. As of the 2020 census, its population was 643 (down from 656 at 2010[2]) and it contained 264 housing units.
Madison Township was established in 1835.[3]
According to the 2010 census, the township has a total area of, of which (or 99.97%) is land and (or 0.03%) is water.[2] The streams of Mad Run, Madison Creek, Speed Run and Walnut Creek run through this township.