The Pannonian Basin or Carpathian Basin is a large basin in Central Europe. The basin forms a topographically discrete unit set in the European landscape, surrounded by imposing geographic boundaries that have created a fairly unified cultural area that looks more towards the south and east than to the north and west. The rivers Danube and Tisza divide the basin roughly in half.
In Hungarian, the basin is known as Kárpát-medence, in Serbian and Bosnian as Panonski basen, in Croatian as Panonska nizina, Панонски басен, in Slovak as Panónska kotlina, in Slovenian as Panonska kotlina and in German as Pannonisches Becken.
In the English language Pannonian Basin or Carpathian Basin are generally not used as geographical terms. Instead, the term Pannonian Plain is used in most sources, which refers to the lowland parts of the Pannonian Basin as well as those of some adjoining regions like Lower Austria, Moravia, Bosnia.
In Hungarian geographical literature various subdivisions of the Carpathian Mountains (Inner Western Carpathians, Inner Eastern Carpathians, Southern Carpathians, Western Carpathians and Transylvanian Plateau) are also considered parts of the Carpathian Basin on the basis of traditional geopolitical divisions.