| Official Name: | Washington Township |
| Settlement Type: | Township |
| Mapsize: | 250px |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Indiana |
| Subdivision Type2: | County |
| Subdivision Name2: | Hendricks |
| Government Type: | Indiana township |
| Area Total Km2: | 100.18 |
| Area Land Km2: | 100.09 |
| Area Water Km2: | 0.09 |
| Area Total Sq Mi: | 38.68 |
| Area Land Sq Mi: | 38.65 |
| Area Water Sq Mi: | 0.03 |
| Area Water Percent: | 0.09 |
| Population As Of: | 2020 |
| Population Footnotes: | [1] |
| Population Total: | 57176 |
| Population Density Km2: | 447.2 |
| Population Density Sq Mi: | 1158.2 |
| Elevation M: | 254 |
| Elevation Ft: | 833 |
| Coordinates: | 39.7597°N -86.395°W |
| Blank Name: | GNIS feature ID |
| Blank Info: | 0454000 |
Washington Township is one of twelve townships in Hendricks County, Indiana, United States. As of the 2010 census, its population was 44,764.[2]
Washington Township was named for George Washington.[3]
The John W. McClain House, A.A. Parsons Farmstead, and Smith Farm are listed on the National Register of Historic Places.[4]
Washington Township covers an area of ; of this, or 0.09 percent is water. The streams of Abner Creek, Army Branch, Lake Forest Creek and March Creek run through this township.
(This list is based on USGS data and may include former settlements.)
The township contains twelve cemeteries: Abner Creek, Barlow, Gossett, McClain, Merritt, Merritt Memorial Gardens, North Lawn, Salem Baptist, Shiloh Baptist, Shiloh Methodist, Smith and White Lick Presbyterian.
Washington Township is served by the Avon-Washington Township Public Library in Avon.[6]