| Official Name: | Jefferson Township |
| Settlement Type: | Township |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Kansas |
| Subdivision Type2: | County |
| Subdivision Name2: | Chautauqua |
| Area Total Km2: | 144.58 |
| Area Land Km2: | 143.92 |
| Area Water Km2: | 0.66 |
| Area Total Sq Mi: | 55.82 |
| Area Land Sq Mi: | 55.57 |
| Area Water Sq Mi: | 0.25 |
| Area Water Percent: | 0.46 |
| Population As Of: | 2000 |
| Population Total: | 834 |
| Population Density Km2: | 5.8 |
| Population Density Sq Mi: | 15 |
| Elevation M: | 340 |
| Elevation Ft: | 1115 |
| Coordinates: | 37.1556°N -96.4481°W |
| Blank Name: | GNIS feature ID |
| Blank Info: | 0469109 |
Jefferson Township is a township in Chautauqua County, Kansas, USA. As of the 2000 census, its population was 834.
Jefferson Township covers an area of 55.82sqmi and contains one incorporated settlement, Cedar Vale. According to the USGS, it contains three cemeteries: Cedar Vale, Grant Creek and Round Mound.
The streams of Otter Creek, Shanghai Creek, Turkey Creek and Union Creek run through this township.
Jefferson Township contains one airport or landing strip, Mills Ranch Airport.