| Image Coa: | Niederaichbach coat of arms.svg |
| Coordinates: | 48.6°N 31°W |
| Image Plan: | Niederaichbach in LA.svg |
| State: | Bayern |
| Region: | Niederbayern |
| District: | Landshut |
| Elevation: | 376 |
| Area: | 34.06 |
| Postal Code: | 84100 |
| Area Code: | 08702 |
| Licence: | LA |
| Gemeindeschlüssel: | 09 2 74 156 |
| Divisions: | 4 Ortsteile |
| Mayor: | Josef Klaus[1] |
| Leader Term: | 2020 - 26 |
Niederaichbach is a municipality in the district of Landshut in Bavaria in Germany.