Clinton Township is one of fourteen townships in Cass County, Indiana, United States.

As of the 2020 census, its population was 646 (down from 816 at 2010[4]) and contained 226 housing units.

[5] It was named for DeWitt Clinton, sixth Governor of New York.

[6] According to the 2010 census, the township has a total area of 25.13 square miles (65.1 km2), of which 24.75 square miles (64.1 km2) (or 98.49%) is land and 0.38 square miles (0.98 km2) (or 1.51%) is water.

[4] The township contains four cemeteries: Clymers, Porter, Saint Johns and Shideler.