Big Creek Township is a township in Ellis County, Kansas, United States, named for Big Creek, which flows diagonally through the township from the northwest to the southeast.

Big Creek Township covers an area of 97.22 square miles (251.8 km2) surrounding the city of Hays.

According to the USGS, it contains two cemeteries: Fort and Fort Hays Memorial Gardens.

A tributary to Big Creek, the stream of Chetolah Creek runs through this township, north to south through the eastern suburbs of Hays.

This article about a location in Ellis County, Kansas is a stub.