Distlergrotte, Natural monument cave in Neuhaus an der Pegnitz, Germany.

The Distlergrotte, also called Finstermühlhöhle, is a karst cave near the Finstermühle in the Hasellohetal valley, about one kilometre southeast of Neuhaus an der Pegnitz. Its partly walled entrance, roughly 0.5 by 1.5 metres, sits 13 metres above the dry valley floor. Behind it lies the Mittelhalle, 20 metres long, eight metres wide and two to nine metres high; the cave runs about 90 metres in total as a descending system of levels, with a small lake 17 metres below the entrance.

Johannes Distler discovered the cave in 1905 and carried out the first excavations there until 1928; it is named after him. Settlement traces from the Urnenfelder and Hallstatt periods were found near the entrance. In 1909 the palaeontologist Max Schlosser recovered Ice Age bones of mammoth, woolly rhinoceros, cave bear, cave hyena, reindeer, red deer, wild horse, bison and aurochs. In 1955 Manfred Moser found remains of collared lemming, steppe polecat, arctic fox and ptarmigan. The Bavarian State Office for Monument Protection lists it as a Bodendenkmal, a Urnenfelder-period cave station.

The cave is named after Johannes Distler, who discovered it in 1905 and carried out the first excavations until 1928. It served as a beer cellar and was run as a show cave until 1915. In 2003 it appeared in the Willi-wills-wissen episode "Wer traut sich rein in dunkle Höhlen?".

The cave is closed from 1 October to 31 March to protect hibernating bats; the entrance is then barred with an iron rod. Outside that period it is freely accessible, reached from Neuhaus an der Pegnitz on the marked Karstkundlicher Wanderpfad (green dot on white). The entrance sits 13 metres above the dry valley floor, and full exploration of the 90-metre level system needs cave experience and equipment.

The cave was named after Johannes Distler, who discovered it in 1905 and carried out the first excavations until 1928. In 2003 it was one of three caves filmed for the Willi-wills-wissen episode "Wer traut sich rein in dunkle Höhlen?".