| Image Coa: | Wappen dernau.gif |
| Coordinates: | 50.5342°N 7.0425°W |
| Image Plan: | Dernau in AW.svg |
| State: | Rheinland-Pfalz |
| District: | Ahrweiler |
| Verbandsgemeinde: | Altenahr |
| Elevation: | 124 |
| Area: | 5.72 |
| Postal Code: | 53507 |
| Area Code: | 02643; 02641 (Ortsteil Marienthal) |
| Licence: | AW |
| Gemeindeschlüssel: | 07 1 31 017 |
| Divisions: | 5 |
| Website: | www.dernau.de |
| Mayor: | Alfred Sebastian[1] |
| Leader Term: | 2019 - 24 |
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.