Liebenau is a town in the lower Mühlviertel in the district Freistadt in Upper Austria, 1633 inhabitants (January 1, 2016). The relevant District Court is located in Freistadt. With an altitude of 970 m above sea level. A. has it on the highest village in Upper Austria and has approximately 76 square kilometers, the largest municipality in Upper Austria. Particularly well known is the "Natura 2000" -Schutzgebiet Tannermoor.