This Monastery is the most significant in the prefecture of Pieria. It has been built on an altitude of 900 meters, on the imposing mountain of Olympus, and it can be reached in a distance of 18 kilometres from Litochoro. The Monastery was founded by Saint Dionysios about in 1542, in the years of the Patriarch Ieremias the Second  (1522-1546), when Suleiman the First was the Sultan (1520-1566). Saint Dionysios received the permission by the Turkish aga of the area to built the monastery in his full discretion and will, and thus the ownership of the area was given to him. 

Saint Dionysios was a magnificent iconographer, and therefore, after cells, chapels and mills were built, he was particularly diligent with the enrichment of the inner monastery. Due to his work, the Monastery holds numerous important treasures, relics of Saints, as well as a library of Fathers’ writings. Moreover, he wrote the Regulation (instructions) for the optimum operation of the Monastery. The exemplar, frugal ascetic life of the Saint and the moderation and serenity of his personality attracted a large number of monks in a short period of time. A letter of Theodosios Zygomalas to Stefanos Gerlah testifies the ethos of the Saint, citing the number of the monks who arrived to the Monastery in only 35 years since its establishment. 

The Holy Monastery of Saint Dionysios in Olympus operates today as a communal male Monastery. In the Monastery live 24 monks and Archimandrite Maximos Kyritsis serves as the abbot.