| Official Name: | Union Center Township |
| Settlement Type: | Township |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Kansas |
| Subdivision Type2: | County |
| Subdivision Name2: | Elk |
| Area Total Km2: | 372.92 |
| Area Land Km2: | 371.22 |
| Area Water Km2: | 1.7 |
| Area Total Sq Mi: | 143.99 |
| Area Land Sq Mi: | 143.33 |
| Area Water Sq Mi: | 0.66 |
| Area Water Percent: | 0.46 |
| Population As Of: | 2000 |
| Population Total: | 116 |
| Population Density Km2: | 0.3 |
| Population Density Sq Mi: | 0.8 |
| Elevation M: | 431 |
| Elevation Ft: | 1414 |
| Coordinates: | 37.4667°N -96.4336°W |
| Blank Name: | GNIS feature ID |
| Blank Info: | 1729700 |
Union Center Township is a township in Elk County, Kansas, USA. As of the 2000 census, its population was 116.
Union Center Township covers an area of 143.99sqmi and contains no incorporated settlements. According to the USGS, it contains three cemeteries: Bunker Hill, Clear Cut and Forest.
The streams of Bull Creek, Clear Creek, Rowe Branch Elk River and South Branch Elk River run through this township.