Knight Township is one of eight townships in Vanderburgh County, Indiana, United States. As of the 2020 census, its population was 68,625. Knight Township has the largest township population in Southwestern Indiana and is the home of nearly 40 percent of Vanderburgh County's population.
Knight Township was organized in 1840 from the eastern two thirds of Pigeon Township.
On October 1, 2009, the City of Evansville officially annexed territory within Knight Township bounded between Burkhardt Road, the Lloyd Expressway and Morgan Avenue.
According to the 2010 census, the township has a total area of , of which (or 98.28%) is land and (or 1.72%) is water.
The township contains these two cemeteries: Oak Hill and Oates Memorial Park.