| Subject Name: | Mettau |
| Municipality Type: | former |
| Canton: | Aargau |
| Iso-Code-Region: | CH-AG |
| Coordinates: | 47.5667°N 16°W |
| Postal Code: | 5274 |
| Municipality Code: | 4171 |
| Area: | 3.29 |
| Elevation: | 347 |
| Population: | 317 |
| Populationof: | December 2006 |
| Popofyear: | 2006 |
| Website: | www.mettau.ch |
Mettau was a municipality in the district of Laufenburg in the canton of Aargau in Switzerland. On 1 January 2010 the municipalities of Hottwil, Etzgen, Mettau, Oberhofen and Wil merged into the municipality of Mettauertal.[1]