The Katschberg or Katschberghöhe is a 1,641 metre high mountain pass on the border between the Austrian states of Salzburg and Carinthia. The pass connects the Katschtal valley in Carinthia with the Lungau in the Salzburger Land. It separates the Hohe Tauern in the west from the Lavanttaler or Gurktaler Alps in the east.
The pass lies on the old traffic route Radstadt – Obertauern (Radstädter Tauern) – Lungau – Katschberg – Spittal an der Drau. The Katschberg was probably already used as a pass road at the time of the Romans. In any case, mail has demonstrably been transported over the pass since 1764.