Johannisberg, Mountain summit in Hohe Tauern, Austria

Johannisberg is a 3,453-metre summit on the border of Salzburg and Carinthia in the Glockner Group of the High Tauern. Seen from the east it has a firn-covered dome shape, while its west side is a 450-metre-high face inclined at 50°. Long ridges run to the northwest and southwest.

The mountain was named in 1832 by the Regensburg botanist David Heinrich Hoppe in honour of Archduke John of Austria, after the Archduke's failed attempt to cross the Riffltor (3,094 m) from Heiligenblut. In 1835 the Archduke ordered a stone shelter, the Johannishütte, built below the peak. The first documented ascent to the summit was made on 28 August 1859 by Anton von Ruthner with P. Kronegger and Josef Schweighofer via the southeast ridge.

The name honours Archduke John of Austria, not a saint: the Regensburg botanist David Heinrich Hoppe gave it in 1832 after the archduke's failed attempt to cross the Riffltor (3,094 m) into the area beyond. Earlier names were Keeserkopf and Herzoghut. The archduke also funded a stone shelter, the Johannishütte, built in 1835 after that failure.

The normal route starts at the Oberwalderhütte (2,973 m, built 1910) and leads over the Oberer Pasterzenboden and the southeast ridge along a firn edge to the summit, about 3 hours of walking. It is a high-alpine tour requiring glacier equipment and experience; other ridges and flanks are combined ice-and-rock routes up to UIAA grade III and 50° ice.

The mountain was long called Keeserkopf and Herzoghut before the Regensburg botanist David Heinrich Hoppe renamed it in 1832 after Archduke John of Austria, following the archduke's failed attempt to cross the Riffltor (3,094 m). The first documented ascent to the summit was made on 28 August 1859 by Anton von Ruthner with P. Kronegger and Josef Schweighofer via the southeast ridge.