Hammond Township is one of nine townships in Spencer County, Indiana. As of the 2020 census, its population was 1,579 and it contained 694 housing units. Hammond Township contains the city of Grandview.
The Hammond family settled in Hammond Township in about 1814.
According to the 2010 census, the township has a total area of , of which (or 97.20%) is land and (or 2.78%) is water.