Big Creek Township is a township in Ellis County, Kansas, USA, named for Big Creek, which flows diagonally through the township from the northwest to the southeast. As of the 2010 census, its population was 1,883.

Big Creek Township covers an area of 97.22 square miles (251.8 km) 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.

Big Creek Township contains one airport, Hays Municipal Airport.

• USGS Geographic Names Information System (GNIS)

• US-Counties.com
• City-Data.com