The Monastery of Panayia Yiatrissa is an Orthodox Christian monastery located in the southern Peloponnese of Greece. The monastery was erected on the site of the ruins of an ancient temple of Athena. The conversion of the temple from pagan to Christian took place possibly as early as 382 AD. The site grew to include many structures spread over a wide area, but sometime later it was largely if not wholly abandoned. Tradition holds that it was reestablished as a Christian monastery in 1683 and that numerous miraculous healings have occurred there.