| 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: | Kosciusko |
| Government Type: | Indiana township |
| Area Total Sq Mi: | 35.43 |
| Area Land Sq Mi: | 34.86 |
| Area Water Sq Mi: | 0.58 |
| Population As Of: | 2020 |
| Population Footnotes: | [1] |
| Population Total: | 3025 |
| Population Density Sq Mi: | 86 |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Elevation Footnotes: | [2] |
| Elevation M: | 277 |
| Elevation Ft: | 909 |
| Coordinates: | 41.2164°N -85.7086°W |
| Blank Name: | FIPS code |
| Blank Info: | 18-80756[3] |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 454003 |
Washington Township is one of seventeen townships in Kosciusko County, Indiana. As of the 2020 census, its population was 3,025 (up from 2,996 at 2010[4]) and it contained 1,344 housing units.
Washington Township was organized in 1838.[5]
The Robert Orr Polygonal Barn was listed on the National Register of Historic Places in 1993.
According to the 2010 census, the township has a total area of, of which (or 98.39%) is land and (or 1.64%) is water.[4]
(This list is based on USGS data and may include former settlements.)
Washington Township residents are served by the Pierceton & Washington Township Public Library in Pierceton.[6]