| Type: | Ortsteil |
| Municipality: | Dornburg |
| Langendernbach | |
| Image Coa: | DEU Dornburg COA.svg |
| Coordinates: | 50.535°N 8.05°W |
| State: | Hessen |
| Region: | Gießen |
| District: | Limburg-Weilburg |
| Elevation: | 240 |
| Population: | 1092 |
| Stand: | 2006-12-31 |
| Postal Code: | 65599 |
| Area Code: | 06436 |
| Licence: | LM |
Langendernbach is a village in the municipality Dornburg, Limburg-Weilburg district, Hesse, in western Germany.