Beaver Township is one of ten townships in Newton County, Indiana, United States. As of the 2020 census, its population was 1,534 and it contained 681 housing units.
According to the 2010 census, the township has a total area of , of which (or 96.71%) is land and (or 3.29%) is water.
The township contains four cemeteries: Beaver City, Murphy, Bell, and Oakland.