| Type: | Stadt |
| Image Coa: | Wappen herdorf.jpg |
| Coordinates: | 50.7775°N 7.9547°W |
| Image Plan: | Herdorf in AK.svg |
| State: | Rheinland-Pfalz |
| District: | Altenkirchen |
| Verbandsgemeinde: | Daaden-Herdorf |
| Elevation: | 290 |
| Area: | 18.00 |
| Postal Code: | 57562 |
| Area Code: | 02744 |
| Licence: | AK |
| Gemeindeschlüssel: | 07 1 32 050 |
| Divisions: | 3 Ortsteile |
| Website: | www.herdorf.de |
| Mayor: | Uwe Erner[1] |
| Leader Term: | 2019 - 24 |
Herdorf (pronounced as /de/) is a town in the district of Altenkirchen, in Rhineland-Palatinate, Germany. It is situated on the river Heller, approx. 20 km south-west of Siegen.
Herdorf is twinned with:
Saint-Laurent-du-Pont, France (1982)