| 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: | Daviess |
| Government Type: | Indiana township |
| Area Total Sq Mi: | 73.77 |
| Area Land Sq Mi: | 73.08 |
| Area Water Sq Mi: | 0.69 |
| Population As Of: | 2020 |
| Population Total: | 16054 |
| Population Density Sq Mi: | auto |
| Elevation Footnotes: | [1] |
| Elevation M: | 155 |
| Elevation Ft: | 509 |
| Coordinates: | 38.6694°N -87.1758°W |
| Blank Name: | FIPS code |
| Blank Info: | 18-80522[2] |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 453990 |
Washington Township is one of ten townships in Daviess County, Indiana. As of the 2020 census, its population was 16,054 (up from 15,534 at 2010[3]) and it contained 6,811 housing units.[4]
Washington Township was organized on 12 May 1817 at the first meeting of the Daviess County Commissioners. Among its earliest settlements was the community of Liverpool, which later became subsumed into the county seat of Washington, which is located in Washington Township.[5]
County Bridge No. 45, Jefferson Elementary School, and Prairie Creek Site are listed on the National Register of Historic Places.
According to the 2010 census, the township has a total area of, of which (or 99.06%) is land and (or 0.94%) is water.[3] Blue Hole Pond, Snyder Pond and Swan Pond are in this township.
The township contains five cemeteries: Colbert, Hawkins, New Veale Creek, Oak Grove and Saint Johns.