Hohe Rannach, Mountain summit in Graz region, Austria.

Hohe Rannach is a 1018 m summit in the Graz Highlands, a few kilometres southwest of the Schöckl and visible from Graz. The municipal boundary of Gratkorn and Stattegg runs exactly over the top. The largely wooded mountain is bounded by the Rötsch- and Rannachgraben to the north, the Leber to the east and the Stattegger Tal to the southeast, falling gently south and west toward the Murtal. Near the cairn-marked summit stands the former Rannach-Schutzhaus, now privately owned.

The mountain was formed from light and dark gray dolomite and Barrande limestone that developed during the Graz Paleozoic period. These geological layers help reveal the complex changes in the region's geology over ancient times.

The mountain is regularly visited by hikers and cyclists from surrounding communities who use it as part of their outdoor recreation network. The forests covering the slopes form an important part of the local landscape that residents pass through or engage with during their time in the region.

Three marked trailheads give short ascents: Gasthaus Martinelli on the Leber (733 m) in about 1 hour, the Höchwirt in Freßnitzviertel (610 m) in 1¼ hours, and the former Geierkogel inn in Rannach (690 m) in 1¼ hours. From Stattegg-Hub (433 m) allow 1¾ hours, from Gratkorn parish church (394 m) or St. Veit in Graz (376 m) about 2¾ hours. The summit cairn stands beside the former Rannach-Schutzhaus, now privately owned.

The Rannach hosts a section of the UEC Mountain Bike Marathon European Championships course from 2003 and 2018, and of the 2009 UCI World Championships. Near the cairn-marked summit stands the former Rannach-Schutzhaus, now privately owned.