Shaki Waterfall, Natural waterfall in Syunik Province, Armenia.

Shaki Waterfall cascades approximately 18 meters over solidified basalt lava flows on the left bank of the Vorotan River. The water descends continuously, creating a natural formation where the cascade meets the riverbed below.

The waterfall and the gorge around it lie in a landscape where traces of human activity and ash dated to the Paleolithic period have been found. On 14 August 2008 a government decision added the cascade to Armenia's list of state natural monuments, under the Ministry of Environment.

The legend tells of 93 girls from Gegharkunik sent to a leader camped at Mugan. At the river they asked to bathe before meeting him; they plunged into the Vorotan and vanished. Only Shake, a blue-eyed girl, fled through the tributary, and a rock rose in the water to hide her. The waterfall and village bear her name.

The waterfall lies in the Vorotan gorge, 1 km south of Shaki village and about 3 km north-west of Sisian, on the left side of the river. Most of the river's water is diverted to the Shaki hydroelectric station, so only a smaller part falls over the ledge; expect a reduced flow. The site is listed as a state natural monument, and the gorge around it holds caves and rock faces.

The gorge walls around the falls contain caves where traces of human activity and ash dated to the Paleolithic period have been found. Most of the Shaki River's water is diverted to the Shaki hydroelectric station, so only a smaller part actually plunges over the ledge.