Jefferson Township is one of twelve townships in Huntington County, Indiana, United States. As of the 2020 census, its population was 744 (down from 757 at 2010) and it contained 315 housing units.
Jefferson Township was organized in 1843. It was named for President Thomas Jefferson.
According to the 2010 census, the township has a total area of , of which (or 99.28%) is land and (or 0.72%) is water.
The township contains two cemeteries: Purviance and Taylor.