Washington Township is the name of given to 3 active and 5 defunct townships in the U.S. state of South Dakota:
Active townships Washington Township, Aurora County, South Dakota Washington Township, Clark County, South Dakota Washington Township, Douglas County, South Dakota
Defunct townships Washington Township, Bon Homme County, South Dakota Washington Township, Charles Mix County, South Dakota Washington Township, Hyde County, South Dakota Washington Township, Jones County, South Dakota Washington Township, McPherson County, South Dakota
See also
Washington Township (disambiguation)