| Harbach | |
| Coordinates: | 50.8611°N 7.8469°W |
| Image Plan: | Harbach in AK.svg |
| State: | Rheinland-Pfalz |
| District: | Altenkirchen |
| Verbandsgemeinde: | Kirchen (Sieg) |
| Elevation: | 284 |
| Area: | 5.63 |
| Postal Code: | 57572 |
| Area Code: | 02734 |
| Licence: | AK |
| Gemeindeschlüssel: | 07 1 32 045 |
| Divisions: | 3 |
| Website: | www.kirchen-sieg.de |
| Mayor: | Andreas Buttgereit[1] |
| Leader Term: | 2019 - 24 |
Harbach is a municipality in the district of Altenkirchen, in Rhineland-Palatinate, Germany.