Aargau (disambiguation)
Aargau stands for:
- Canton of Aargau , Switzerland
- Aar-Gau, a historical part of the Franconian Empire, see History of the Canton of Aargau # The Aar-Gau
- Bernese Aargau (also Unteraargau), those parts of today's Canton of Aargau that were subject to the city of Bern from 1415 to 1798
- Oberaargau , northeastern part of the canton of Bern
- Catholic-Austrian student association Aargau, see list of member associations of CV # Österreichischer Cartellverband