| Official Name: | Big Creek Township |
| Settlement Type: | Township |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Kansas |
| Subdivision Type2: | County |
| Subdivision Name2: | Ellis |
| Area Total Km2: | 251.79 |
| Area Land Km2: | 251.77 |
| Area Water Km2: | 0.01 |
| Area Total Sq Mi: | 97.22 |
| Area Land Sq Mi: | 97.21 |
| Area Water Sq Mi: | 0.01 |
| Area Water Percent: | 0 |
| Population As Of: | 2000 |
| Population Total: | 1883 |
| Population Density Sq Mi: | 19.5 |
| Elevation M: | 618 |
| Elevation Ft: | 2028 |
| Coordinates: | 38.8783°N -99.3083°W |
| Blank Name: | GNIS feature ID |
| Blank Info: | 0475180 |
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 97.22sqmi 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.