Bigger Township is one of eleven townships in Jennings County, Indiana, United States. As of the 2020 census, its population was 664 (down from 726 at 2010) and it contained 272 housing units.
Bigger Township was created in 1840 from Vernon Township, and named for Samuel Bigger, seventh Governor of Indiana.
Benville Bridge was listed on the National Register of Historic Places in 1996.
According to the 2010 census, the township has a total area of , of which (or 99.84%) is land and (or 0.16%) is water.
Bigger Township comprises 30 square-mile sections: 24 from survey township Township 6 North, Range 9 East, Second Principal Meridian; and 6 from Township 6 North, Range 10 East, Second Principal Meridian.
The township contains three cemeteries: Bethel, Callicotte and Hughes.