| Official Name: | Union Township |
| Settlement Type: | Township |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Nebraska |
| Subdivision Type2: | County |
| Subdivision Name2: | Phelps |
| Area Total Km2: | 92.81 |
| Area Land Km2: | 92.81 |
| Area Water Km2: | 0 |
| Area Total Sq Mi: | 35.83 |
| Area Land Sq Mi: | 35.83 |
| Area Water Sq Mi: | 0 |
| Area Water Percent: | 0 |
| Population As Of: | 2000 |
| Population Total: | 523 |
| Population Density Km2: | 5.6 |
| Population Density Sq Mi: | 14.6 |
| Elevation M: | 751 |
| Elevation Ft: | 2464 |
| Coordinates: | 40.4817°N -99.5867°W |
| Blank Name: | GNIS feature ID |
| Blank Info: | 0838299 |
Union Township is one of fourteen townships in Phelps County, Nebraska, United States. The population was 523 at the 2000 census. A 2006 estimate placed the township's population at 525.[1]
A portion of the Village of Bertand lies within the Township.