Damjili (Azerbaijani: Damcılı mağarası) – is a half-circular shaped cave site (6400-6000 BC) in Azerbaijan, where evidence of prehistoric human presence during the Paleolithic and Mesolithic was discovered.

Various stone tools, arrowheads, flint knives, remains of hearth and fossilized bones of animals have been found in the cave.

Traces of ochre were found in a grotto of the cave, lending credence to the idea, that the occupants had a desire to deal with symbolism and aesthetics. The sediment layers, in which the ochre was found, are mixed with later ones which suggests that the use of ochre dates back to the Mousterian culture

Damjili cave is the biggest cave among Avey Mountain caves. It has an area of 360 km² (139.0 sq mi). The front side of the cave has been destroyed as the result of floods over the years. The height of the cave's rear side is 4 m (13.1 ft).

The site is situated in the South-Eastern part of the Avey Mountain of the Small Caucasus, that extends from Daş Salahlı village in the Gazakh rayon to the Khram River.

The name Damjili is an allusion to "weeping water", that rinses through the natural cracks in the limestone cave walls (the Azeri word Damji (Azerbaijani: damcı) translates to drop).

Water of Damjili spring dribbles down from the flinty top of the cave through the natural cracks. Pure and cold falling water drops are accumulating in the dent below and forming a spring. That is why the spring is called Damjili, literally meanining "with drops".

Damjılı cave was discovered for the first time in 1953 during the joint expedition of Russian scientist Zamyatin and Azerbaijani archaeologist Mammadali Husyenov.