Washington Township is one of eleven townships in Monroe County, Indiana, United States. As of the 2010 census, its population was 2,029 and it contained 882 housing units. The township contains a portion of the Morgan-Monroe State Forest.

Washington Township was established in 1829. It was named for George Washington, the first President of the United States.

According to the 2010 census, the township has a total area of 34.24 square miles (88.7 km), of which 34.23 square miles (88.7 km) (or 99.97%) is land and 0.01 square miles (0.026 km) (or 0.03%) is water.

• Hindustan at 39°18′29″N 86°29′00″W / 39.308103°N 86.483329°W / 39.308103; -86.483329
• Modesto at 39°16′11″N 86°32′54″W / 39.269769°N 86.548332°W / 39.269769; -86.548332
• Wayport at 39°15′58″N 86°31′15″W / 39.266158°N 86.520831°W / 39.266158; -86.520831

(This list is based on USGS data and may include former settlements.)

The township contains these two cemeteries: Collier and Sample.

• Interstate 69
• Indiana State Road 37

• Bryant Creek Lake

• Monroe County Community School Corporation

• Indiana's 9th congressional district
• State House District 61
• State Senate District 37

• "Washington Township, Monroe County, Indiana". Geographic Names Information System. United States Geological Survey, United States Department of the Interior. Retrieved September 27, 2009.
• United States Census Bureau 2008 TIGER/Line Shapefiles
• IndianaMap

• City-Data.com page for Washington Township