Upper Austria (, ; Austro-Bavarian: Obaöstarreich) is one of the nine states or Bundesländer of Austria. Its capital is Linz. Upper Austria borders on Germany and the Czech Republic, as well as on the other Austrian states of Lower Austria, Styria, and Salzburg. With an area of 11,982 km² and 1.437 million inhabitants, Upper Austria is the fourth-largest Austrian state by land area and the third-largest by population.