| Official Name: | Troy Township |
| Settlement Type: | Township |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Indiana |
| Subdivision Type2: | County |
| Subdivision Name2: | DeKalb |
| Government Type: | Indiana township |
| Area Total Sq Mi: | 14.9 |
| Area Land Sq Mi: | 14.9 |
| Area Water Sq Mi: | 0 |
| Population As Of: | 2020 |
| Population Footnotes: | [1] |
| Population Total: | 333 |
| Population Density Sq Mi: | 20.4 |
| Elevation Footnotes: | [2] |
| Elevation M: | 262 |
| Elevation Ft: | 860 |
| Coordinates: | 41.4806°N -84.8308°W |
| Blank Name: | FIPS code |
| Blank Info: | 18-76598[3] |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 453901 |
Troy Township is one of fifteen townships in DeKalb County, Indiana. As of the 2020 census, its population was 333, up from 304 at the 2010 census,[4] and it contained 124 housing units.
According to the 2010 census, the township has a total area of, all land.[4]
The township contains one cemetery, Eddy.