Liberty Township is one of thirteen townships in Parke County, Indiana, United States. As of the 2020 census, its population was 598 and it contained 296 housing units.
The W.H. York Round Barn, Bowsher Ford Covered Bridge, Marshall Covered Bridge, Mill Creek Covered Bridge, and Rush Creek Covered Bridge are listed on the National Register of Historic Places.
According to the 2010 census, the township has a total area of , of which (or 99.06%) is land and (or 0.94%) is water.
(This list is based on USGS data and may include former settlements.)
The township contains these seven cemeteries: Brockway, Ephlin, Harvey, Miller, Rush Creek, Russell and Shirk.