| Official Name: | Catherine 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: | 208.31 |
| Area Land Km2: | 208.24 |
| Area Water Km2: | 0.07 |
| Area Total Sq Mi: | 80.43 |
| Area Land Sq Mi: | 80.4 |
| Area Water Sq Mi: | 0.03 |
| Area Water Percent: | 0.03 |
| Population As Of: | 2000 |
| Population Total: | 312 |
| Population Density Sq Mi: | 3.9 |
| Elevation M: | 624 |
| Elevation Ft: | 2047 |
| Coordinates: | 39.0417°N -99.1586°W |
| Blank Name: | GNIS feature ID |
| Blank Info: | 0472447 |
Catherine Township is a township in Ellis County, Kansas, USA. As of the 2010 census, its population was 312. It includes the unincorporated settlement of Catharine, Kansas, whose population was 113 in the 2020 census.
Catherine Township covers an area of 80.43sqmi and contains no incorporated settlements. According to the USGS, it contains two cemeteries: Norman and Saint Catharina.