Dernau
| Dernau   | |
|---|---|
| Location of Dernau   within Ahrweiler   district | |
| Coordinates: 50°32′03″N 07°02′33″E / 50.53417°N 7.04250°E | |
| Country | Germany | 
| State | Rhineland-Palatinate | 
| District | Ahrweiler | 
| Municipal assoc. | Altenahr | 
| Subdivisions | 5 | 
| Government | |
| • Mayor (2019–24) | Alfred Sebastian | 
| Area | |
|  • Total | 5.72 km2 (2.21 sq mi) | 
| Elevation | 124 m (407 ft) | 
| Population  (2023-12-31) | |
|  • Total | 1,389 | 
| • Density | 240/km2 (630/sq mi) | 
| Time zone | UTC+01:00 (CET) | 
| • Summer (DST) | UTC+02:00 (CEST) | 
| Postal codes | 53507 | 
| Dialling codes | 02643; 02641 (Ortsteil Marienthal) | 
| Vehicle registration | AW | 
| Website | www.dernau.de | 
Dernau is a municipality in the district of Ahrweiler, in Rhineland-Palatinate, Germany.
The village of Dernau which is centrally located in the Ahr valley is famous for its wines. Most of them are red wines. Besides agriculture, tourism is a strong economic factor.