West Creek Township is one of eleven townships in Lake County, Indiana. As of the 2020 census, its population was 7,676 and it contained 3,046 housing units.
West Creek Township was founded in 1839. It took its name from the westernmost of three large streams in the vicinity.
According to the 2020 census, the township has a total area of , of which (or 99.81%) is land and (or 0.19%) is water. The township includes a small portion of the incorporated town of Lowell, as well as the town of Schneider.
West Creek Township, along with Cedar Creek Township and Eagle Creek Township, is served by the Tri-Creek School Corporation which includes Lowell High School.