| Image Coa: | Wappen Tunau.png |
| Coordinates: | 47.7858°N 7.9239°W |
| Image Plan: | Tunau in LÖ.svg |
| State: | Baden-Württemberg |
| Region: | Freiburg |
| District: | Lörrach |
| Elevation: | 734 |
| Area: | 4.05 |
| Postal Code: | 79677 |
| Area Code: | 07673 |
| Licence: | LÖ |
| Gemeindeschlüssel: | 08 3 36 089 |
| Mayor: | Dirk Pfeffer[1] |
| Leader Term: | 2017 - 25 |
Tunau is a municipality in the district of Lörrach in Baden-Württemberg in Germany.