| Coordinates: | 50.8556°N 7.8778°W |
| Image Plan: | Niederfischbach in AK.svg |
| State: | Rheinland-Pfalz |
| District: | Altenkirchen |
| Verbandsgemeinde: | Kirchen (Sieg) |
| Elevation: | 282 |
| Area: | 14.48 |
| Postal Code: | 57572 |
| Area Code: | 02734 |
| Licence: | AK |
| Gemeindeschlüssel: | 07 1 32 076 |
| Divisions: | 3 Ortsteile |
| Mayor: | Dominik Schuh[1] |
| Leader Term: | 2019 - 24 |
| Party: | CDU |
Niederfischbach is a municipality in the district of Altenkirchen, in Rhineland-Palatinate, in western Germany.