The Corycian Cave (; ) is located on the slopes of Mount Parnassus, in central Greece. In the mythology of the area, it is named after the nymph Corycia; however, its name etymologically derives from korykos, knapsack. A modern name for the cave in some references is Sarantavli, meaning forty rooms. This cave was sacred to the Corycian nymphs and the Muses, and a place of worship for Pan.