Hachau
The following geographic objects are called Hachau :
- Hachau (Grassau) , district of the market Grassau , Traunstein district, Bavaria
- Hachau (Siegsdorf) , part of the municipality of Siegsdorf , Traunstein district, Bavaria
- Hachau (Filzmoos municipality) , place near Filzmoos , St. Johann district, State of Salzburg