Jennings Township is one of thirteen townships in Owen County, Indiana, United States. As of the 2020 census, its population was 778 (down from 846 at 2010) and it contained 380 housing units.
Jennings Township was organized in 1842. It was named for T. C. Jennings, who played an active role in its establishment.
The Cataract Falls Covered Bridge was listed on the National Register of Historic Places in 2005.
According to the 2010 census, the township has a total area of , of which (or 97.66%) is land and (or 2.34%) is water.
(This list is based on USGS data and may include former settlements.)
The township contains Maze Cemetery.