The Mur (German pronunciation: [ˈmuːɐ̯] ⓘ) or Mura (Slovene: [ˈmúːɾa]; Croatian: [mǔːra]; Hungarian: [ˈmurɒ]; Prekmurje Slovene: Müra[2] or Möra[2]) is a river in Central Europe rising in the Hohe Tauern national park of the Central Eastern Alps in Austria with its source at 1,898 m (6,227 ft) above sea level.

Between Tamsweg and Unzmarkt-Frauenburg the river flows through a rural mountain valley and is closely paralleled by the 65 km (40 mi) long narrow gauge Murtalbahn railway.

Once heavily polluted by several paper mills on the shore and by the ironworks around Leoben, the water quality has improved since the 1980s and the river is now seen as an asset to the city.

From Graz the river continues to flow south, past the town of Leibnitz to its nearby confluence with the Sulm, where it adopts a more easterly course.

In the upper Međimurje area, in the western part of the region, the Mur floods and changes its course rather often, moving slowly toward the north on its left.

[6] The Mur is known to carry small quantities of gold, not enough to be suitable for exploitation today, but this was a focus of activity for many people since ancient times.

The plan includes a massive sewage pipe between the city centre and the new dam, necessitating the felling of thousands of trees.