| Image Coa: | DEU Niederwerrn COA.svg |
| Coordinates: | 50.0633°N 10.1728°W |
| Image Plan: | Niederwerrn in SW.svg |
| State: | Bayern |
| Region: | Unterfranken |
| District: | Schweinfurt |
| Elevation: | 240 |
| Area: | 9.77 |
| Postal Code: | 97464 |
| Area Code: | 09721 |
| Licence: | SW |
| Gemeindeschlüssel: | 09 6 78 160 |
| Divisions: | 2 Ortsteile |
| Website: | www.niederwerrn.de |
| Mayor: | Bettina Bärmann[1] |
| Leader Term: | 2020 - 26 |
| Party: | FW |
Niederwerrn is a municipality in the district of Schweinfurt in Bavaria, Germany.