| Official Name: | Washington Township |
| Settlement Type: | Township |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Indiana |
| Subdivision Type2: | County |
| Subdivision Name2: | Blackford |
| Government Type: | Indiana township |
| Area Total Sq Mi: | 36.23 |
| Area Land Sq Mi: | 36.22 |
| Area Water Sq Mi: | 0.01 |
| Population As Of: | 2020 |
| Population Footnotes: | [1] |
| Population Total: | 803 |
| Population Density Sq Mi: | auto |
| Elevation Footnotes: | [2] |
| Elevation M: | 269 |
| Elevation Ft: | 883 |
| Coordinates: | 40.5181°N -85.3944°W |
| Blank Name: | FIPS code |
| Blank Info: | 18-80360[3] |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 453982 |
Washington Township is one of four townships in Blackford County, Indiana. As of the 2020 census, its population was 803 (down from 873 at 2010[4]) and it contained 364 housing units. County Commissioners named the township after George Washington in 1833, and it was part of Jay County. In 1838, Washington Township became part of the newly organized Blackford County.[5]
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.[4] thumb|left|400px|Map of Washington Township
The township contains at least nine cemeteries: Balsley, Center, Hadden, Herbaugh, Leffler, Mills, Roll, Shields, and Schmidt.