Cleveland Township is one of nine townships in Whitley County, Indiana, United States. As of the 2020 census, its population was 3,324 (down from 3,398 at 2010) and it contained 1,398 housing units.
According to the 2010 census, the township has a total area of , all land. The Eel River flows westward through the township. The streams of Clear Creek, Spring Creek, Sugar Creek and Sycamore Creek run through this township. Lakes in this township include T Lake.
(This list is based on USGS data and may include former settlements.)
The township contains one cemetery, Cleveland.
Cleveland Township residents may obtain a free library card from the South Whitley Community Public Library.