Ferdinand Township is one of twelve townships in Dubois County, Indiana. As of the 2010 census, its population was 3,629 and it contained 1,389 housing units.
According to the 2010 census, the township has a total area of , of which (or 99.20%) is land and (or 0.80%) is water. Camp Ground Lake is in this township.
The Ferdinand State Forest and lake is also located in Ferdinand Township.
The township contains two cemeteries, Pinkston-Hagan Cemetery and St. Ferdinand Catholic Church Cemetery.