Washington Township is a township in Chautauqua County, Kansas, United States.

Washington Township covers an area of 47.15 square miles (122.1 km2) and contains no incorporated settlements.

According to the USGS, it contains three cemeteries: Burton, Riley and Todd.

The streams of California Creek, Cedar Creek, Davis Creek, Deadman Creek, East Branch Grant Creek, Middle Caney Creek, North Caney Creek and West Branch Grant Creek run through this township.

This article about a location in Chautauqua County, Kansas is a stub.