Ohio Township is one of nine townships in Crawford County, Indiana. As of the 2020 census, its population was 653 and it contained 329 housing units.
According to the 2010 census, the township has a total area of , of which (or 97.95%) is land and (or 2.02%) is water.
(This list is based on USGS data and may include former settlements.)
The township contains one cemetery, Wiseman.