Lungauer Kalkspitze, Alpine summit in Schladminger Tauern, Austria.

Lungauer Kalkspitze is a 2,471 m summit in the western Schladminger Tauern, in the Salzburg Lungau. It faces the slightly lower Steirische Kalkspitze (2,459 m), which carries the Salzburg-Styria border; the Akarscharte (2,315 m) separates the two. The mountain is built largely of Middle Triassic dolomite and limestone marble, unlike the crystalline schists and gneisses of neighbouring Schladminger Tauern peaks.

The two Kalkspitzen are crossed by Austria's Zentralalpenweg 02 and Arnoweg long-distance trails, which run through the Akarscharte (2315 m) between them. The Ignaz-Mattis-Hütte (1986 m) of the ÖAV Vienna section and the private Oberhütte (1859 m) and Giglachseehütte (1955 m) serve as bases. The name Kalkspitze refers to the carbonate rock of the massif, unlike the crystalline schists and gneisses typical of the Schladminger Tauern.

The two Kalkspitzen are separated by the Akarscharte (2315 m), crossed by two long-distance trails: the Zentralalpenweg 02 and the Arnoweg. This is why both summits are climbed often, and the final stretch to the Lungauer Kalkspitze calls for sure-footedness. The name Kalkspitze comes from the carbonate rock of the massif.

The climb is demanding and takes several hours, with rest stops available at mountain huts along the way. Proper footwear and weather preparation are important since conditions can change quickly at high elevation.

On clear days the summit offers panoramic views of the surrounding peaks in the Tauern range. Alpine marmots and eagles inhabit the area, showing the diversity of high-altitude wildlife.