The Monastery of Agios Dionysios in Olympus is a Greek Orthodox monastery on the slopes of Mount Olympus, the most important monastery in the Pieria Prefecture. It is located at the Enipeas ravine at an altitude of 850 m.

Mount Olympus is the highest mountain in Greece. It is part of the Olympus massif near the Thermaic Gulf of the Aegean Sea, located in the Olympus Range on the border between Thessaly and Macedonia, between the regional units of Larissa and Pieria, about 80 km (50 mi) southwest from Thessaloniki. Mount Olympus has 52 peaks and deep gorges. The highest peak, Mytikas, meaning "nose", rises to 2,917.727 metres (9,572.60 ft). It is one of the highest peaks in Europe in terms of topographic prominence.