Bezirk Tamsweg is an administrative district (Bezirk) in the federal state of Salzburg, Austria. It is congruent with the Lungau region (German pronunciation: [ˈlʊŋˌɡaʊ̯] ). The administrative centre of the district is Tamsweg.

The area of the Lungau plateau is 1,019.65 km, with a population of 20,437 (Jan. 1, 2023), and population density 20 persons per km. It is located within the Central Eastern Alps, confined by the Hohe Tauern (High Tauern) range in the west, the Niedere Tauern (Low Tauern) in the north, and the Gurktal Alps (Nock Mountains) in the south.

The region is separated from the Salzburg Pongau region by the Radstädter Tauern Pass crossing the Niedere Tauern. In the south, the Katschberg Pass road leads to the neighbouring state of Carinthia. Since 1974, the Tauern Autobahn underpasses both ranges via the Tauern Road Tunnel and the Katschberg Tunnel. In the east, the upper river Mur, originating near Muhr, flows towards Murau in Styria, accompanied by the narrow-gauge Taurach Railway and the Mur Valley Railway.

Beside some pastoral economy, Lungau largely depends on tourism.

The district is divided into 15 municipalities, four of them are market towns.

1. Mariapfarr (2,475)
2. Mauterndorf (1,609)
3. St. Michael im Lungau (3,539)
4. Tamsweg (5,757)

1. Göriach (345)
2. Lessach (547)
3. Muhr (489)
4. Ramingstein (1,040)
5. St. Andrä im Lungau (748)
6. St. Margarethen im Lungau (761)
7. Thomatal (356)
8. Tweng (239)
9. Unternberg (1,043)
10. Weißpriach (307)
11. Zederhaus (1,182)

(population numbers Jan. 1, 2023)

Media related to Tamsweg District at Wikimedia Commons

• Regionaldevelopment Lungau
• Website with detailed information about the region, its tradition and local customs as well as tourism information

47°07′N 13°49′E / 47.117°N 13.817°E / 47.117; 13.817