| Official Name: | Union Township |
| Settlement Type: | Township |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Kansas |
| Subdivision Type2: | County |
| Subdivision Name2: | Doniphan |
| Area Total Km2: | 93.6 |
| Area Land Km2: | 93.52 |
| Area Water Km2: | 0.08 |
| Area Total Sq Mi: | 36.14 |
| Area Land Sq Mi: | 36.11 |
| Area Water Sq Mi: | 0.03 |
| Area Water Percent: | 0.09 |
| Population As Of: | 2000 |
| Population Total: | 360 |
| Population Density Km2: | 3.8 |
| Population Density Sq Mi: | 10 |
| Elevation M: | 335 |
| Elevation Ft: | 1099 |
| Coordinates: | 39.6981°N -95.2886°W |
| Blank Name: | GNIS feature ID |
| Blank Info: | 0473270 |
Union Township is a township in Doniphan County, Kansas, USA. As of the 2000 census, its population was 360.
Union Township was created in 1878.[1]
Union Township covers an area of 36.14sqmi and contains one incorporated settlement, Denton. According to the USGS, it contains five cemeteries: Anderson, Denton, Robertson, Saint Marys and Victory.