Lygkos (Greek: Λύγκος), also transliterated as Lyngos or Lygos, is a remote mountain range in the eastern Ioannina and the western Grevena regional unit in northwestern Greece. It is a part of the Pindus mountain range. Its highest point is the Avgo, at 2,177 m elevation. The Lygkos mountains lie in a horseshoe shape around the Valia Kalda (Βάλια Κάλντα) valley, which exits towards the Aoos valley to the west. The Valia Kalda is part of the Pindus-Valia Kalda National Park, founded in 1966. It is one of the coldest and wettest regions of Greece.