| Official Name: | Keyser 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: | 24.02 |
| Area Land Sq Mi: | 23.96 |
| Area Water Sq Mi: | 0.05 |
| Population As Of: | 2020 |
| Population Footnotes: | [1] |
| Population Total: | 7853 |
| Population Density Sq Mi: | 319.9 |
| Elevation Footnotes: | [2] |
| Elevation M: | 269 |
| Elevation Ft: | 883 |
| Coordinates: | 41.3508°N -85.135°W |
| Blank Name: | FIPS code |
| Blank Info: | 18-39636[3] |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 453525 |
Keyser Township is one of fifteen townships in DeKalb County, Indiana. As of the 2020 census, its population was 7,853, up from 7,666 at the 2010 census,[4] and it contained 3,134 housing units.
Keyser Township had its start in 1876, when the Baltimore and Ohio Railroad constructed a railroad through the area.[5]
The Samuel Bevier House, Joseph Bowman Farmhouse, Breechbill-Davidson House, Brethren in Christ Church, Orin Clark House, DeKalb County Home and Barn, William Fountain House, Gump House, Edward Kelham House, Charles Lehmback Farmstead, Rakestraw House, and Henry Shull Farmhouse Inn were added to the National Register of Historic Places in 1983.
According to the 2010 census, the township has a total area of, of which (or 99.75%) is land and (or 0.21%) is water.[4]
The township contains two cemeteries: Calvary and Embrey.