Tetnuldi, Mountain peak in Svaneti region, Georgia.

Tetnuldi is a peak in the central Greater Caucasus, in Georgia's Samegrelo-Zemo Svaneti region, rising to 4,858 metres. It is built mainly of Palaeozoic crystalline schists and granitoids, and above 3,000 metres it is covered by permanent snow. The Adishi glacier descends its slopes, along with the Tsaneri glacier.

Tetnuldi was first climbed in 1887 by Douglas Freshfield and Moritz Dechy with two guides; in 1891 Gottfried Merzbacher and Ludwig Purtscheller reached the summit with two guides. In 1930 Georgian climbers Alexander and Alexandra Japaridze, Iagor Kazalikashvili and A. Avaliani made the ascent. A memorial plaque was fixed on the exposed southwest face after climbers Simon Japaridze and Pimen Dvali died on the mountain in 1929; the spot is called "Japaridze's Witnesses".

The mountain's name is also borne by a 2020 track by the Georgian musical project Hugo Salieri, inspired by the peak. The ski resort beside Tetnuldi opened for the 2015–2016 winter season, and its slope is the longest in the South Caucasus at 9.5 km, with a vertical drop of 1.7 km.

The ski area beside the summit opened for the 2015-2016 winter season, after construction began in May 2014 and its first phase was finished in January 2016. Its piste runs 9.5 km with 1.7 km of vertical drop, the longest and steepest descent of its kind in the South Caucasus. Above 3,000 m the slopes are permanently snow-covered.

The ski resort beside the peak opened for the 2015-2016 winter season, with construction begun in May 2014 and its first phase finished in January 2016. Its piste runs 9.5 km with 1.7 km of vertical drop, the longest and greatest vertical descent in the South Caucasus.