Geneva Township is one of eleven townships in Jennings County, Indiana, United States. As of the 2020 census, its population was 7,495 (down from 7,584 at 2010) and it contained 3,365 housing units.
Geneva Township was established in about 1824. A majority of the first settlers being natives of Switzerland caused the name Geneva to be selected.
According to the 2010 census, the township has a total area of , of which (or 98.90%) is land and (or 1.10%) is water. The streams of Bear Creek, Bennetts Branch, Nettle Creek, Rattail Creek, Rock Creek and Wyaloosing Creek run through this township.
The township contains three cemeteries: Cave Springs, Henry and Hulse.