| Official Name: | Riley Township |
| Settlement Type: | Township |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Indiana |
| Subdivision Type2: | County |
| Subdivision Name2: | Vigo |
| Government Type: | Indiana township |
| Area Total Sq Mi: | 35.86 |
| Area Land Sq Mi: | 35.23 |
| Area Water Sq Mi: | 0.63 |
| Area Water Percent: | 1.76 |
| Population As Of: | 2020 |
| Population Footnotes: | [1] |
| Population Total: | 3153 |
| Population Density Sq Mi: | 88.6 |
| Elevation M: | 167 |
| Elevation Ft: | 548 |
| Coordinates: | 39.3894°N -87.2958°W |
| Postal Code Type: | ZIP codes |
| Postal Code: | 47802, 47803 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 453802 |
Riley Township is one of twelve townships in Vigo County, Indiana, United States. As of the 2010 census, its population was 3,123 and it contained 1,260 housing units.[2]
According to the 2010 census, the township has a total area of, of which (or 98.24%) is land and (or 1.76%) is water.[2]
The township contains six cemeteries: Cooper, Jones, Liberty, Mewhinney, Miner, and Oak Hill.