| 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: | Clay |
| Government Type: | Indiana township |
| Area Total Sq Mi: | 36.73 |
| Area Land Sq Mi: | 36.73 |
| Area Water Sq Mi: | 0 |
| Population As Of: | 2020 |
| Population Total: | 750 |
| Population Density Sq Mi: | auto |
| Elevation Footnotes: | [1] |
| Elevation M: | 203 |
| Elevation Ft: | 666 |
| Coordinates: | 39.3858°N -86.995°W |
| Blank Name: | FIPS code |
| Blank Info: | 18-80468[2] |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 453988 |
Washington Township is one of eleven townships in Clay County, Indiana. As of the 2020 census, its population was 750 (down from 780 at 2010[3]) and it contained 346 housing units.[4]
Indiana State Highway Bridge 46-11-1316 was listed on the National Register of Historic Places in 2000.
According to the 2010 census, the township has a total area of, all land.[3]
(This list is based on USGS data and may include former settlements.)
The township contains six cemeteries: Fairview, Funk, Killion, Sixmile, Snoddy and Zenor.